Severity: HIGH
Description: A vulnerability, which was classified as critical, was found in Tenda W15E 15.11.0.14. Affected is the function formAddDnsForward of the file /goform/AddDnsForward. The manipulation of the argument DnsForwardRule leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. VDB-261858 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
CVSS Score: 8.8
B
No data available.
No data available.
1. Risk Assessment
The vulnerability identified as CVE-2024-4115 is a critical stack-based buffer overflow in the Tenda W15E router firmware version 15.11.0.14. This flaw resides in the `formAddDnsForward` function within the `/goform/AddDnsForward` file, specifically affecting the `DnsForwardRule` argument. The vulnerability has a CVSS v3.1 base score of 8.8 (HIGH), indicating a severe risk. The attack vector is network-based, requiring low attack complexity and low privileges, with no user interaction needed.
The likelihood of exploitation is high due to the public availability of the exploit and the lack of vendor response to the disclosure. The ease of exploitation is further supported by the fact that the vulnerability can be triggered remotely, making it accessible to attackers with minimal technical expertise.
The potential impacts are significant:
- **Confidentiality**: Attackers could gain unauthorized access to sensitive data stored on or transmitted through the router.
- **Integrity**: Malicious actors could alter DNS forwarding rules, redirecting traffic to malicious sites or intercepting communications.
- **Availability**: Exploitation could lead to a denial of service, rendering the router inoperable and disrupting network connectivity.
This vulnerability poses a substantial risk to organizations relying on the Tenda W15E router, particularly those in environments where network availability and data integrity are critical.
2. Potential Attack Scenarios
One potential attack scenario involves an attacker exploiting the buffer overflow vulnerability to execute arbitrary code on the router. The attack vector would begin with the attacker sending a specially crafted HTTP request to the router's web interface, targeting the `formAddDnsForward` function. By manipulating the `DnsForwardRule` argument, the attacker overflows the stack, overwriting critical memory regions and gaining control over the router's execution flow.
Once control is established, the attacker could:
- Install malware or backdoors to maintain persistent access.
- Modify DNS settings to redirect users to phishing or malicious websites.
- Disrupt network services by crashing the router or overloading its resources.
The outcome of such an attack could range from data exfiltration and network compromise to complete service disruption, depending on the attacker's objectives.
3. Mitigation Recommendations
Immediate actions should be taken to mitigate the risk posed by this vulnerability:
- **Patch or Update**: Check with the vendor for firmware updates or patches addressing this vulnerability. If no patch is available, consider replacing the affected hardware with a secure alternative.
- **Network Segmentation**: Isolate the affected routers from critical network segments to limit the potential impact of an exploit.
- **Access Control**: Restrict access to the router's management interface to trusted IP addresses and enforce strong authentication mechanisms.
- **Monitoring and Logging**: Implement network monitoring to detect unusual activity, such as unexpected DNS changes or traffic redirection.
For further technical details and exploit analysis, refer to the following resources:
- PacketStorm Security: https://packetstormsecurity.com/search/?q=CVE-2024-4115
- VulDB Entry: https://vuldb.com/?id.261858
- GitHub Exploit Details: https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/W15Ev1.0/formAddDnsForward.md
4. Executive Summary
CVE-2024-4115 is a critical vulnerability in the Tenda W15E router firmware, allowing remote attackers to execute arbitrary code via a stack-based buffer overflow. This flaw poses a high risk to organizations, with potential impacts including data theft, network compromise, and service disruption. The vulnerability is easily exploitable, and public disclosure of the exploit increases the likelihood of attacks.
To safeguard your network, immediate action is required. This includes applying vendor patches, isolating affected devices, and enhancing access controls. Failure to address this vulnerability could result in significant operational and reputational damage. Prioritizing mitigation efforts is essential to protect your organization's infrastructure and data.
Severity: HIGH
Description: A vulnerability has been found in Tenda W15E 15.11.0.14 and classified as critical. Affected by this vulnerability is the function formDelDhcpRule of the file /goform/DelDhcpRule. The manipulation of the argument delDhcpIndex leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-261859. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
CVSS Score: 8.8
B
No data available.
No data available.
1. Risk Assessment
The vulnerability identified as CVE-2024-4116 is a critical stack-based buffer overflow in the Tenda W15E router firmware version 15.11.0.14. This flaw resides in the `formDelDhcpRule` function within the `/goform/DelDhcpRule` file, specifically through the manipulation of the `delDhcpIndex` argument. The vulnerability is remotely exploitable, requiring low attack complexity and low privileges, making it highly accessible to attackers. The CVSS v3.1 base score of 8.8 (HIGH) underscores its severity, with impacts on confidentiality, integrity, and availability rated as high.
The likelihood of exploitation is significant due to the public disclosure of the exploit and the lack of response from the vendor, Tenda, regarding mitigation or patching. Attackers can leverage this vulnerability to execute arbitrary code, potentially gaining full control over the affected device. This could lead to unauthorized access to network resources, data exfiltration, or disruption of services. The business impact includes operational downtime, reputational damage, and potential regulatory penalties if sensitive data is compromised.
2. Potential Attack Scenarios
An attacker could exploit this vulnerability by crafting a malicious HTTP request targeting the `/goform/DelDhcpRule` endpoint on the Tenda W15E router. By manipulating the `delDhcpIndex` parameter, the attacker triggers a stack-based buffer overflow, allowing them to overwrite memory and execute arbitrary code.
The attack process would involve the following steps:
- The attacker identifies a vulnerable Tenda W15E router exposed to the internet or within the target network.
- Using publicly available exploit code, the attacker sends a specially crafted HTTP request to the router, exploiting the buffer overflow vulnerability.
- Successful exploitation grants the attacker control over the router, enabling them to modify configurations, intercept network traffic, or deploy additional malware.
Potential outcomes include:
- Unauthorized access to sensitive data traversing the network.
- Disruption of network services, leading to operational downtime.
- Use of the compromised router as a pivot point for further attacks within the network.
3. Mitigation Recommendations
Immediate actions should be taken to mitigate the risk posed by this vulnerability:
- Discontinue the use of Tenda W15E routers running firmware version 15.11.0.14 until a patch is available.
- If the device must remain in use, restrict access to the router's management interface to trusted IP addresses only.
- Monitor network traffic for unusual activity, particularly HTTP requests targeting the `/goform/DelDhcpRule` endpoint.
- Consider replacing vulnerable devices with routers from vendors that provide timely security updates and support.
As of now, no official patch has been released by Tenda. Organizations should monitor the vendor's website and security advisories for updates. In the absence of a patch, implementing network segmentation and intrusion detection systems can help reduce the attack surface and detect potential exploitation attempts.
4. Executive Summary
CVE-2024-4116 is a critical vulnerability affecting Tenda W15E routers, allowing remote attackers to execute arbitrary code and gain control over the device. This poses significant risks to network security, including data breaches, service disruptions, and potential regulatory non-compliance. The vulnerability is highly exploitable, and the lack of vendor response increases the urgency for organizations to take proactive measures.
Key recommendations include discontinuing the use of affected devices, restricting access to the router's management interface, and monitoring for signs of exploitation. While no patch is currently available, organizations should prioritize replacing vulnerable devices with those from more responsive vendors. Addressing this vulnerability is critical to safeguarding network integrity and ensuring business continuity.
Severity: HIGH
Description: A vulnerability was found in Tenda W15E 15.11.0.14 and classified as critical. Affected by this issue is the function formDelPortMapping of the file /goform/DelPortMapping. The manipulation of the argument portMappingIndex leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-261860. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
CVSS Score: 8.8
B
No data available.
No data available.
1. Risk Assessment
The vulnerability identified as CVE-2024-4117 is a critical stack-based buffer overflow in the Tenda W15E router firmware version 15.11.0.14. This flaw resides in the `formDelPortMapping` function within the `/goform/DelPortMapping` file, specifically involving the manipulation of the `portMappingIndex` argument. The vulnerability is remotely exploitable, requiring low attack complexity and low privileges, as indicated by the CVSS vector (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
The likelihood of exploitation is high due to the public disclosure of the exploit and the lack of vendor response to the initial disclosure. Attackers can leverage this vulnerability to execute arbitrary code, potentially gaining full control over the affected device. The impact on confidentiality, integrity, and availability is severe, as successful exploitation could lead to unauthorized access to sensitive data, modification of system configurations, and disruption of network services.
2. Potential Attack Scenarios
An attacker could exploit this vulnerability by sending a specially crafted HTTP request to the `/goform/DelPortMapping` endpoint on the Tenda W15E router. The request would manipulate the `portMappingIndex` argument to trigger a stack-based buffer overflow. Once the overflow is triggered, the attacker could overwrite the return address on the stack, redirecting execution to malicious code embedded in the payload.
The attack process would involve the following steps:
- The attacker identifies a vulnerable Tenda W15E router exposed to the internet.
- The attacker crafts a malicious HTTP request targeting the `/goform/DelPortMapping` endpoint, including a payload designed to exploit the buffer overflow.
- The router processes the request, causing the buffer overflow and executing the attacker's code.
- The attacker gains control of the router, potentially exfiltrating sensitive data, modifying network settings, or using the device as a pivot point for further attacks within the network.
The potential outcomes include complete compromise of the router, unauthorized access to connected devices, and disruption of network services, leading to significant operational and reputational damage.
3. Mitigation Recommendations
Immediate action is required to mitigate this vulnerability. The following steps are recommended:
- Discontinue use of the Tenda W15E router firmware version 15.11.0.14 and upgrade to a patched version if available. As the vendor has not responded to the disclosure, monitor official channels for updates.
- If a patch is not available, consider replacing the affected devices with those from vendors that provide timely security updates.
- Implement network segmentation to isolate the affected routers and limit the potential impact of a compromise.
- Apply strict access controls to the router's management interface, ensuring it is not exposed to the internet.
- Monitor network traffic for unusual activity that may indicate exploitation attempts.
For further technical details and exploit analysis, refer to the following resources:
- PacketStorm Security: https://packetstormsecurity.com/search/?q=CVE-2024-4117
- VulDB Entry: https://vuldb.com/?id.261860
- GitHub Exploit Details: https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/W15Ev1.0/formDelPortMapping.md
4. Executive Summary
CVE-2024-4117 is a critical vulnerability affecting the Tenda W15E router, allowing remote attackers to execute arbitrary code and gain full control of the device. The flaw is easy to exploit, and the public availability of the exploit increases the risk of widespread attacks. Successful exploitation could lead to unauthorized access to sensitive data, disruption of network services, and further compromise of connected systems.
Given the high severity of this vulnerability and the lack of vendor response, immediate action is required. Organizations using the affected routers should upgrade to a patched firmware version, replace the devices if no patch is available, and implement strict network controls to mitigate the risk. Failure to address this vulnerability could result in significant operational disruptions and reputational damage. Prioritizing remediation efforts is essential to safeguard network integrity and protect sensitive information.
Severity: HIGH
Description: A vulnerability was found in Tenda W15E 15.11.0.14. It has been classified as critical. This affects the function formIPMacBindAdd of the file /goform/addIpMacBind. The manipulation of the argument IPMacBindRule leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-261861 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
CVSS Score: 8.8
B
No data available.
No data available.
1. Risk Assessment
The vulnerability identified as CVE-2024-4118 is a critical stack-based buffer overflow in the Tenda W15E router firmware version 15.11.0.14. This flaw resides in the `formIPMacBindAdd` function within the `/goform/addIpMacBind` file, specifically affecting the `IPMacBindRule` argument. The vulnerability allows remote attackers with low privileges to execute arbitrary code by exploiting the buffer overflow, leading to potential compromise of the device.
The CVSS v3.1 base score of 8.8 (HIGH) underscores the severity of this issue. The attack vector is network-based, requiring low attack complexity and no user interaction, making it relatively easy to exploit. The potential impacts are severe, with full compromise of confidentiality, integrity, and availability. Attackers could gain unauthorized access to the device, manipulate network settings, exfiltrate sensitive data, or render the device inoperable.
The likelihood of exploitation is high, given that the exploit has been publicly disclosed and may already be in use. The lack of response from the vendor further exacerbates the risk, as no patches or mitigations have been provided. Organizations using the affected Tenda W15E routers are at significant risk of compromise, particularly if the devices are exposed to untrusted networks.
2. Potential Attack Scenarios
One potential attack scenario involves an attacker targeting a Tenda W15E router exposed to the internet. The attacker crafts a malicious payload designed to trigger the buffer overflow in the `IPMacBindRule` argument of the `formIPMacBindAdd` function. By sending this payload to the router's web interface, the attacker overflows the stack, overwriting critical memory regions and injecting malicious code.
Once the exploit is successful, the attacker gains control over the router, enabling them to reconfigure network settings, intercept traffic, or deploy additional malware. For example, the attacker could redirect DNS queries to a malicious server, enabling phishing attacks or data exfiltration. Alternatively, the attacker could disable the router entirely, causing a denial of service and disrupting business operations.
The attack process is straightforward, requiring only network access to the router and knowledge of the exploit. Publicly available exploit code further lowers the barrier to entry, making it accessible to less skilled attackers. The potential outcomes include data breaches, network compromise, and operational downtime, all of which could have severe financial and reputational consequences for affected organizations.
3. Mitigation Recommendations
Immediate action is required to mitigate the risks associated with this vulnerability. Organizations using Tenda W15E routers should:
- Disconnect affected devices from untrusted networks, such as the internet, to reduce exposure to potential attacks.
- Monitor network traffic for unusual activity, such as unexpected configuration changes or unauthorized access attempts.
- Apply any available firmware updates or patches from the vendor, if released. As of now, the vendor has not provided a fix, so organizations should regularly check for updates.
- Consider replacing affected devices with routers from vendors that provide timely security updates and support.
- Implement network segmentation to limit the impact of a potential compromise. For example, isolate critical systems from devices that may be vulnerable.
- Review and strengthen access controls to ensure that only authorized users can access router management interfaces.
For additional guidance, refer to the following resources:
- PacketStorm Security: https://packetstormsecurity.com/search/?q=CVE-2024-4118
- VulDB Entry: https://vuldb.com/?id.261861
- GitHub Exploit Details: https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/W15Ev1.0/formIPMacBindAdd.md
4. Executive Summary
CVE-2024-4118 is a critical vulnerability affecting Tenda W15E routers, allowing remote attackers to execute arbitrary code and potentially take full control of the device. This flaw poses significant risks to confidentiality, integrity, and availability, with potential impacts including data breaches, network compromise, and operational downtime. The vulnerability is easy to exploit, and public disclosure of the exploit increases the likelihood of attacks.
Organizations using affected routers must take immediate action to mitigate risks. Recommendations include disconnecting devices from untrusted networks, monitoring for suspicious activity, and replacing vulnerable hardware if no patches are available. The lack of vendor response underscores the urgency of addressing this issue proactively. Failure to act could result in severe financial and reputational damage, making it imperative to prioritize this vulnerability in your security strategy.
Severity: HIGH
Description: A vulnerability was found in Tenda W15E 15.11.0.14. It has been declared as critical. This vulnerability affects the function formIPMacBindDel of the file /goform/delIpMacBind. The manipulation of the argument IPMacBindIndex leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. VDB-261862 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
CVSS Score: 8.8
B
No data available.
No data available.
1. Risk Assessment
The vulnerability identified as CVE-2024-4119 is a critical stack-based buffer overflow in the Tenda W15E router firmware version 15.11.0.14. This flaw resides in the formIPMacBindDel function within the /goform/delIpMacBind file, specifically in the handling of the IPMacBindIndex argument. The vulnerability is remotely exploitable, requiring low attack complexity and low privileges, making it highly accessible to attackers.
The CVSS v3.1 base score of 8.8 (HIGH) underscores the severity of this issue. The attack vector is network-based, and successful exploitation could lead to complete compromise of the affected system, impacting confidentiality, integrity, and availability. Attackers could execute arbitrary code, potentially gaining full control over the router, disrupting network services, or exfiltrating sensitive data.
The likelihood of exploitation is significant, as the exploit has been publicly disclosed and may already be in use. The business impact could be severe, including operational downtime, data breaches, and reputational damage. Organizations using the affected Tenda W15E routers are at high risk if no mitigation measures are implemented.
2. Potential Attack Scenarios
An attacker could exploit this vulnerability by crafting a malicious network request targeting the formIPMacBindDel function. The attack vector involves sending a specially crafted payload to the router's web interface, manipulating the IPMacBindIndex argument to trigger a stack-based buffer overflow.
The attack process would begin with the attacker scanning for vulnerable Tenda W15E routers exposed to the internet. Once identified, the attacker sends the malicious payload to the /goform/delIpMacBind endpoint. The buffer overflow could allow the attacker to overwrite critical memory regions, leading to arbitrary code execution.
Potential outcomes include the attacker gaining administrative access to the router, modifying network configurations, intercepting traffic, or deploying malware to connected devices. In a worst-case scenario, the attacker could use the compromised router as a pivot point to infiltrate the internal network, escalating the attack to other systems.
3. Mitigation Recommendations
Immediate action is required to mitigate this vulnerability. Organizations using Tenda W15E routers should:
- Discontinue use of the affected firmware version (15.11.0.14) and upgrade to a patched version if available.
- If no patch is available, consider replacing the router with a model from a vendor that provides timely security updates.
- Restrict access to the router's management interface by implementing firewall rules to block unauthorized external access.
- Monitor network traffic for unusual activity that may indicate exploitation attempts.
- Regularly review and update network device configurations to ensure they align with security best practices.
For additional guidance, refer to the following resources:
- PacketStorm Security: https://packetstormsecurity.com/search/?q=CVE-2024-4119
- VulDB Entry: https://vuldb.com/?id.261862
- GitHub Exploit Details: https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/W15Ev1.0/formIPMacBindDel.md
4. Executive Summary
CVE-2024-4119 is a critical vulnerability affecting Tenda W15E routers, allowing remote attackers to execute arbitrary code via a stack-based buffer overflow. This flaw poses a significant risk to organizations, potentially leading to network compromise, data breaches, and operational disruptions.
The vulnerability is easily exploitable, and public disclosure of the exploit increases the likelihood of attacks. Immediate action is essential to mitigate risks, including upgrading firmware, restricting access to management interfaces, and monitoring for suspicious activity.
Failure to address this vulnerability could result in severe business impacts, including financial losses and reputational damage. Organizations must prioritize remediation efforts to protect their networks and ensure the security of their operations.
Severity: HIGH
Description: A vulnerability was found in Tenda W15E 15.11.0.14. It has been rated as critical. This issue affects the function formIPMacBindModify of the file /goform/modifyIpMacBind. The manipulation of the argument IPMacBindRuleId/IPMacBindRuleIp/IPMacBindRuleMac/IPMacBindRuleRemark leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-261863. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
CVSS Score: 8.8
B
No data available.
No data available.
1. Risk Assessment
The vulnerability identified as CVE-2024-4120 is a critical stack-based buffer overflow in the Tenda W15E router firmware version 15.11.0.14. This flaw resides in the formIPMacBindModify function within the /goform/modifyIpMacBind file, specifically affecting the arguments IPMacBindRuleId, IPMacBindRuleIp, IPMacBindRuleMac, and IPMacBindRuleRemark. The vulnerability has a CVSS v3.1 base score of 8.8, indicating a high severity risk.
The nature of this vulnerability allows remote attackers with low privileges to exploit it, potentially leading to arbitrary code execution. This could compromise the confidentiality, integrity, and availability of the affected device and its connected network. The likelihood of exploitation is significant, as the exploit has been publicly disclosed and may already be in use. The ease of exploitation is moderate, requiring only low privileges and no user interaction.
The business impact of this vulnerability is severe. If exploited, it could lead to unauthorized access to sensitive data, disruption of network services, and potential lateral movement within the network. The lack of response from the vendor further exacerbates the risk, as no official patch or mitigation guidance is currently available.
2. Potential Attack Scenarios
One potential attack scenario involves an attacker leveraging the stack-based buffer overflow to execute arbitrary code on the Tenda W15E router. The attack vector begins with the attacker sending a specially crafted HTTP request to the vulnerable /goform/modifyIpMacBind endpoint. By manipulating the IPMacBindRuleId, IPMacBindRuleIp, IPMacBindRuleMac, or IPMacBindRuleRemark parameters, the attacker triggers the buffer overflow.
Once the overflow is triggered, the attacker gains control over the router's execution flow, allowing them to execute malicious code. This could result in the attacker gaining full administrative access to the router, enabling them to intercept network traffic, modify router configurations, or deploy additional malware. The potential outcomes include data exfiltration, network disruption, and compromise of connected devices.
3. Mitigation Recommendations
Immediate actions should be taken to mitigate the risk posed by this vulnerability. Since the vendor has not provided a patch, the following steps are recommended:
- Disable remote management of the Tenda W15E router to reduce the attack surface.
- Restrict access to the router's administrative interface to trusted IP addresses only.
- Monitor network traffic for unusual activity, particularly targeting the /goform/modifyIpMacBind endpoint.
- Consider replacing the affected router with a device from a vendor that provides timely security updates.
For further guidance, refer to the following resources:
- PacketStorm Security: https://packetstormsecurity.com/search/?q=CVE-2024-4120
- VulDB Entry: https://vuldb.com/?id.261863
- GitHub Exploit Details: https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/W15Ev1.0/formIPMacBindModify.md
4. Executive Summary
CVE-2024-4120 is a critical vulnerability affecting the Tenda W15E router, allowing remote attackers to execute arbitrary code through a stack-based buffer overflow. This flaw poses a significant risk to network security, potentially leading to data breaches, service disruptions, and unauthorized access to connected devices.
The vulnerability is highly exploitable, with publicly available proof-of-concept code increasing the likelihood of attacks. Despite being reported to the vendor, no patches or mitigations have been provided, leaving organizations reliant on workarounds and proactive security measures.
To safeguard your network, it is crucial to disable remote management, restrict access to the router's administrative interface, and monitor for suspicious activity. Organizations should also consider transitioning to routers from vendors with a stronger commitment to security updates. Addressing this vulnerability promptly is essential to protect sensitive data and maintain operational continuity.
Severity: HIGH
Description: A vulnerability classified as critical has been found in Tenda W15E 15.11.0.14. Affected is the function formQOSRuleDel. The manipulation of the argument qosIndex leads to stack-based buffer overflow. It is possible to launch the attack remotely. The identifier of this vulnerability is VDB-261864. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
CVSS Score: 8.8
B
No data available.
No data available.
1. Risk Assessment
The vulnerability identified as CVE-2024-4121 is a critical stack-based buffer overflow in the Tenda W15E firmware version 15.11.0.14, specifically within the formQOSRuleDel function. This flaw allows remote attackers to manipulate the qosIndex argument, leading to potential exploitation. The CVSS v3.1 base score of 8.8 (HIGH) underscores the severity of this issue, with high impacts on confidentiality, integrity, and availability.
The nature of this vulnerability makes it particularly dangerous as it can be exploited remotely with low attack complexity, requiring only low privileges. The likelihood of exploitation is moderate, given the public disclosure and the lack of vendor response. The potential business impact is significant, as successful exploitation could lead to unauthorized access, data breaches, or even complete system compromise, disrupting operations and damaging organizational reputation.
2. Potential Attack Scenarios
One potential attack scenario involves an attacker leveraging the stack-based buffer overflow to execute arbitrary code on the affected Tenda W15E device. The attack vector begins with the attacker sending a specially crafted network request to the device, targeting the formQOSRuleDel function. By manipulating the qosIndex argument, the attacker overflows the stack, overwriting critical memory regions.
The attack process involves the following steps:
- The attacker identifies a vulnerable Tenda W15E device exposed to the internet or within the network.
- The attacker crafts a malicious payload designed to exploit the buffer overflow, embedding it within the qosIndex parameter.
- The payload is delivered via a network request, triggering the overflow and allowing the attacker to execute arbitrary code with the privileges of the affected process.
Potential outcomes include:
- Full system compromise, enabling the attacker to gain administrative access.
- Installation of malware or backdoors for persistent access.
- Disruption of network services, leading to downtime and operational impact.
3. Mitigation Recommendations
Immediate actions should be taken to mitigate the risk posed by this vulnerability:
- Discontinue use of the affected Tenda W15E firmware version 15.11.0.14 until a patch is available.
- If the device must remain in use, restrict network access to minimize exposure. Implement strict firewall rules to limit access to trusted IP addresses only.
- Monitor network traffic for unusual activity that may indicate exploitation attempts.
- Contact Tenda support for updates on a potential patch or workaround.
Relevant resources for further information and updates include:
- VulDB entry: https://vuldb.com/?id.261864
- PacketStorm Security: https://packetstormsecurity.com/search/?q=CVE-2024-4121
- GitHub repository detailing the vulnerability: https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/W15Ev1.0/formQOSRuleDel.md
4. Executive Summary
CVE-2024-4121 is a critical vulnerability affecting the Tenda W15E firmware, posing a high risk to organizations using this device. The flaw allows remote attackers to exploit a stack-based buffer overflow, potentially leading to system compromise, data breaches, and operational disruption. The vulnerability is easy to exploit and has significant impacts on confidentiality, integrity, and availability.
Given the lack of vendor response and the public disclosure of this vulnerability, immediate action is required to mitigate risks. Organizations should restrict access to affected devices, monitor for exploitation attempts, and seek updates from the vendor. Addressing this vulnerability is crucial to safeguarding network infrastructure and maintaining business continuity.
Severity: HIGH
Description: A vulnerability classified as critical was found in Tenda W15E 15.11.0.14. Affected by this vulnerability is the function formSetDebugCfg of the file /goform/setDebugCfg. The manipulation of the argument enable/level/module leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-261865 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
CVSS Score: 8.8
B
No data available.
No data available.
1. Risk Assessment
The vulnerability identified as CVE-2024-4122 is a critical stack-based buffer overflow in the Tenda W15E router firmware version 15.11.0.14. This flaw resides in the `formSetDebugCfg` function within the `/goform/setDebugCfg` file, where improper handling of the `enable/level/module` arguments allows attackers to overwrite memory on the stack. The vulnerability is remotely exploitable, requiring low attack complexity and only low privileges, making it highly accessible to attackers.
The CVSS v3.1 base score of 8.8 (HIGH) underscores the severity of this issue, with impacts on confidentiality, integrity, and availability all rated as high. Exploitation could lead to arbitrary code execution, enabling attackers to take full control of the affected device. Given that the exploit has been publicly disclosed and the vendor has not responded to initial disclosures, the likelihood of exploitation is elevated.
Business impacts include potential disruption of network services, unauthorized access to sensitive data, and the possibility of attackers using compromised devices as pivot points for further attacks within the network. The ease of exploitation and the lack of vendor response increase the urgency of addressing this vulnerability.
2. Potential Attack Scenarios
An attacker could exploit this vulnerability by crafting a malicious HTTP request targeting the `/goform/setDebugCfg` endpoint on the Tenda W15E router. By manipulating the `enable/level/module` parameters, the attacker could trigger a stack-based buffer overflow, overwriting critical memory regions and injecting malicious code.
The attack process would involve the following steps:
- The attacker identifies a vulnerable Tenda W15E router exposed to the internet or within a local network.
- The attacker sends a specially crafted HTTP POST request to the `/goform/setDebugCfg` endpoint, exploiting the buffer overflow to execute arbitrary code.
- Once the code is executed, the attacker gains control over the router, potentially enabling them to intercept network traffic, modify router configurations, or use the device as a launchpad for further attacks.
Potential outcomes include complete compromise of the router, leading to data exfiltration, network disruption, or lateral movement within the network to target other devices.
3. Mitigation Recommendations
Immediate action is required to mitigate this vulnerability. Organizations using the Tenda W15E router should:
- Discontinue use of the affected firmware version (15.11.0.14) and upgrade to a patched version if and when the vendor releases one.
- If no patch is available, consider replacing the affected devices with routers from vendors that provide timely security updates.
- Implement network segmentation to isolate vulnerable devices and limit the potential impact of exploitation.
- Monitor network traffic for unusual activity, particularly HTTP requests targeting the `/goform/setDebugCfg` endpoint.
- Apply firewall rules to restrict access to the router's management interface from untrusted networks.
For further technical details and exploit analysis, refer to the following resources:
- PacketStorm Security: https://packetstormsecurity.com/search/?q=CVE-2024-4122
- VulDB Entry: https://vuldb.com/?id.261865
- GitHub Exploit Details: https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/W15Ev1.0/formSetDebugCfg.md
4. Executive Summary
CVE-2024-4122 is a critical vulnerability in the Tenda W15E router firmware that allows remote attackers to execute arbitrary code via a stack-based buffer overflow. This flaw poses significant risks to network security, including potential data breaches, service disruptions, and unauthorized access to sensitive information. The vulnerability is easy to exploit, and public disclosure of the exploit increases the likelihood of attacks.
To protect your organization, immediate action is required. Discontinue use of the affected firmware, monitor for suspicious activity, and consider replacing vulnerable devices if no patch is available. Addressing this issue promptly is essential to safeguard your network and prevent potential exploitation. The business impact of inaction could be severe, making this a high-priority security concern.
Severity: HIGH
Description: A vulnerability, which was classified as critical, has been found in Tenda W15E 15.11.0.14. Affected by this issue is the function formSetPortMapping of the file /goform/SetPortMapping. The manipulation of the argument portMappingServer/portMappingProtocol/portMappingWan/porMappingtInternal/portMappingExternal leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-261866 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
CVSS Score: 8.8
B
No data available.
No data available.
1. Risk Assessment
The vulnerability identified as CVE-2024-4123 is a critical stack-based buffer overflow in the Tenda W15E router firmware version 15.11.0.14. This flaw resides in the `formSetPortMapping` function within the `/goform/SetPortMapping` file, where improper handling of input arguments such as `portMappingServer`, `portMappingProtocol`, `portMappingWan`, `portMappingInternal`, and `portMappingExternal` can be exploited. The vulnerability has a CVSS v3.1 base score of 8.8 (HIGH), indicating a severe risk.
The nature of this vulnerability allows remote attackers with low privileges to execute arbitrary code or cause a denial of service by overflowing the stack. The likelihood of exploitation is high due to the public disclosure of the exploit and the lack of response from the vendor. The potential impacts are significant:
- **Confidentiality**: Attackers could gain unauthorized access to sensitive data.
- **Integrity**: Malicious actors could alter system configurations or inject malicious code.
- **Availability**: Exploitation could lead to system crashes, rendering the router inoperable.
The ease of exploitation is moderate, as it requires low-privileged access but no user interaction. The business impact could include operational disruptions, data breaches, and reputational damage, especially if the router is part of a critical network infrastructure.
2. Potential Attack Scenarios
An attacker could exploit this vulnerability by sending a specially crafted HTTP request to the router's web interface, targeting the `/goform/SetPortMapping` endpoint. The malicious payload would manipulate the vulnerable arguments to trigger a stack-based buffer overflow.
**Attack Process**:
- The attacker identifies a Tenda W15E router running the vulnerable firmware version 15.11.0.14.
- Using publicly available exploit code, the attacker crafts a malicious HTTP request containing oversized or malformed data in the `portMappingServer`, `portMappingProtocol`, or other vulnerable arguments.
- The request is sent to the router, causing a buffer overflow that overwrites the stack memory.
- The attacker gains control over the execution flow, potentially executing arbitrary code or crashing the router.
**Potential Outcomes**:
- The attacker could gain full control of the router, enabling further network exploitation.
- The router could become unresponsive, disrupting network connectivity for all connected devices.
- Sensitive data, such as network credentials or traffic, could be exfiltrated.
3. Mitigation Recommendations
Immediate action is required to mitigate this vulnerability:
- **Patch or Update**: Discontinue use of the affected firmware version (15.11.0.14) and upgrade to a patched version if the vendor releases one. Monitor the vendor's website for updates.
- **Network Segmentation**: Isolate the affected router from critical network segments to limit the potential impact of exploitation.
- **Access Control**: Restrict access to the router's web interface to trusted IP addresses only.
- **Monitoring and Detection**: Implement network monitoring to detect unusual traffic patterns or attempts to exploit this vulnerability.
- **Workaround**: If patching is not immediately possible, disable the affected functionality (port mapping) if it is not essential for operations.
Relevant resources for further information:
- PacketStorm Security: https://packetstormsecurity.com/search/?q=CVE-2024-4123
- VulDB Entry: https://vuldb.com/?id.261866
- Exploit Details: https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/W15Ev1.0/formSetPortMapping.md
4. Executive Summary
CVE-2024-4123 is a critical vulnerability in the Tenda W15E router firmware that allows remote attackers to execute arbitrary code or crash the device. This flaw poses a significant risk to network security, with potential impacts including data breaches, operational disruptions, and reputational damage. The vulnerability is highly exploitable due to its public disclosure and the vendor's lack of response.
To protect your organization, immediate action is required. This includes upgrading the firmware, restricting access to the router's management interface, and monitoring for signs of exploitation. Failure to address this vulnerability could result in severe consequences for your network infrastructure and business operations. Prioritize mitigation efforts to safeguard your systems and data.
Severity: HIGH
Description: A vulnerability, which was classified as critical, was found in Tenda W15E 15.11.0.14. This affects the function formSetRemoteWebManage of the file /goform/SetRemoteWebManage. The manipulation of the argument remoteIP leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-261867. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
CVSS Score: 8.8
B
No data available.
No data available.
1. Risk Assessment
The vulnerability identified as CVE-2024-4124 is a critical stack-based buffer overflow in the Tenda W15E router firmware version 15.11.0.14. This flaw resides in the formSetRemoteWebManage function within the /goform/SetRemoteWebManage file, specifically affecting the remoteIP argument. The vulnerability is remotely exploitable, requiring low attack complexity and low privileges, making it highly accessible to attackers.
The CVSS v3.1 base score of 8.8 (HIGH) underscores the severity of this issue, with high impacts on confidentiality, integrity, and availability. Exploitation could allow attackers to execute arbitrary code, potentially leading to full system compromise. The public disclosure of the exploit increases the likelihood of widespread exploitation, especially since the vendor has not responded to early disclosure attempts.
Business impacts include potential disruption of network services, unauthorized access to sensitive data, and the possibility of attackers using the compromised device as a pivot point for further attacks within the network. The ease of exploitation and the lack of vendor response elevate the risk significantly.
2. Potential Attack Scenarios
An attacker could exploit this vulnerability by crafting a malicious request to the vulnerable endpoint (/goform/SetRemoteWebManage) with an oversized remoteIP argument. This would trigger a stack-based buffer overflow, allowing the attacker to overwrite memory and execute arbitrary code on the device.
The attack process would involve the following steps:
- The attacker identifies a Tenda W15E router running the vulnerable firmware version 15.11.0.14.
- The attacker sends a specially crafted HTTP request to the router's web management interface, targeting the formSetRemoteWebManage function.
- The buffer overflow is triggered, enabling the attacker to execute malicious code with the privileges of the affected service.
- The attacker gains control of the router, potentially exfiltrating sensitive data, modifying network configurations, or using the device as a launchpad for further attacks within the network.
The potential outcomes include complete compromise of the router, disruption of network services, and unauthorized access to connected devices or data.
3. Mitigation Recommendations
Immediate actions should be taken to mitigate this vulnerability:
- Disable remote management features on the Tenda W15E router if they are not essential.
- Monitor network traffic for unusual activity, particularly targeting the /goform/SetRemoteWebManage endpoint.
- Apply any available firmware updates or patches from the vendor as soon as they are released.
- If no patch is available, consider replacing the affected device with a more secure alternative.
- Implement network segmentation to limit the potential impact of a compromised device.
Relevant resources for further information include the VulDB entry (https://vuldb.com/?id.261867) and the GitHub repository detailing the exploit (https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/W15Ev1.0/formSetRemoteWebManage.md).
4. Executive Summary
CVE-2024-4124 is a critical vulnerability in the Tenda W15E router firmware that allows remote attackers to execute arbitrary code via a stack-based buffer overflow. This flaw poses significant risks to network security, including potential data breaches, service disruptions, and further exploitation within the network.
The vulnerability is highly exploitable, with publicly available proof-of-concept code increasing the likelihood of attacks. Despite early disclosure, the vendor has not yet provided a patch, leaving affected devices exposed.
To mitigate this risk, organizations should immediately disable remote management features, monitor for suspicious activity, and apply patches as soon as they become available. If no patch is forthcoming, replacing the affected devices may be necessary. Addressing this vulnerability is critical to maintaining network integrity and preventing potential business disruptions.
Severity: HIGH
Description: A vulnerability has been found in Tenda W15E 15.11.0.14 and classified as critical. This vulnerability affects the function formSetStaticRoute of the file /goform/setStaticRoute. The manipulation of the argument staticRouteIndex leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-261868. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
CVSS Score: 8.8
B
No data available.
No data available.
1. Risk Assessment
The vulnerability identified as CVE-2024-4125 is a critical stack-based buffer overflow in the Tenda W15E router firmware version 15.11.0.14. This flaw resides in the formSetStaticRoute function within the /goform/setStaticRoute file, specifically involving the manipulation of the staticRouteIndex argument. The vulnerability is remotely exploitable, requiring low attack complexity and low privileges, making it highly accessible to attackers. The CVSS v3.1 base score of 8.8 (HIGH) underscores its severity, with impacts on confidentiality, integrity, and availability rated as high.
The likelihood of exploitation is significant due to the public disclosure of the exploit and the lack of response from the vendor, Tenda. Attackers can leverage this vulnerability to execute arbitrary code, potentially gaining full control over the affected device. This could lead to unauthorized access to sensitive data, disruption of network services, or even the deployment of malware or ransomware. The business impact is substantial, as compromised routers can serve as entry points for broader network infiltration, leading to data breaches, operational downtime, and reputational damage.
2. Potential Attack Scenarios
An attacker could exploit this vulnerability by sending a specially crafted HTTP request to the vulnerable /goform/setStaticRoute endpoint on the Tenda W15E router. The request would manipulate the staticRouteIndex argument to trigger a stack-based buffer overflow. This overflow could overwrite critical memory regions, allowing the attacker to execute arbitrary code with the privileges of the router's firmware.
Once the attacker gains control, they could perform various malicious activities, such as reconfiguring the router to redirect traffic through a malicious server, intercepting sensitive data, or deploying malware to other devices on the network. In a worst-case scenario, the attacker could use the compromised router as a pivot point to infiltrate the entire network, leading to widespread data exfiltration or ransomware deployment. The potential outcomes include complete loss of data confidentiality, integrity, and availability, as well as significant financial and reputational damage to the affected organization.
3. Mitigation Recommendations
Immediate action is required to mitigate this vulnerability. Organizations using the Tenda W15E router with firmware version 15.11.0.14 should take the following steps:
- Discontinue use of the affected firmware version and upgrade to a patched version if and when the vendor releases one. Monitor Tenda's official channels for updates.
- If a patch is not available, consider replacing the affected devices with routers from vendors that provide timely security updates.
- Implement network segmentation to limit the potential impact of a compromised router. Ensure that critical systems are isolated from devices with known vulnerabilities.
- Monitor network traffic for unusual activity, such as unexpected HTTP requests to the /goform/setStaticRoute endpoint, which could indicate exploitation attempts.
- Apply strict access controls to the router's administrative interface, ensuring that only authorized personnel can make configuration changes.
For further technical details and exploit references, consult the following resources:
- PacketStorm Security: https://packetstormsecurity.com/search/?q=CVE-2024-4125
- VulDB Entry: https://vuldb.com/?id.261868
- GitHub Exploit Documentation: https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/W15Ev1.0/formSetStaticRoute.md
4. Executive Summary
CVE-2024-4125 is a critical vulnerability in the Tenda W15E router firmware that allows remote attackers to execute arbitrary code via a stack-based buffer overflow. This flaw poses a high risk to organizations using the affected devices, as it can lead to unauthorized access, data breaches, and network disruptions. The vulnerability is easily exploitable, and the public disclosure of the exploit increases the likelihood of attacks.
To protect your organization, immediate action is required. Discontinue use of the affected firmware, monitor for vendor updates, and consider replacing vulnerable devices if no patch is forthcoming. Implementing network segmentation and strict access controls can further reduce the risk of exploitation. Addressing this vulnerability is critical to safeguarding your network, data, and business operations. Failure to act could result in significant financial and reputational damage.
Severity: HIGH
Description: A vulnerability was found in Tenda W15E 15.11.0.14 and classified as critical. This issue affects the function formSetSysTime of the file /goform/SetSysTimeCfg. The manipulation of the argument manualTime leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-261869 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
CVSS Score: 8.8
B
No data available.
No data available.
1. Risk Assessment
The vulnerability identified as CVE-2024-4126 is a critical stack-based buffer overflow in the Tenda W15E router firmware version 15.11.0.14. The flaw resides in the `formSetSysTime` function within the `/goform/SetSysTimeCfg` file, specifically in the handling of the `manualTime` argument. This vulnerability can be exploited remotely, requiring low attack complexity and low privileges, making it highly accessible to attackers. The CVSS v3.1 base score of 8.8 (HIGH) underscores the severity of this issue, with impacts on confidentiality, integrity, and availability rated as high.
The likelihood of exploitation is significant, as the vulnerability has been publicly disclosed, and proof-of-concept (PoC) exploit code is available. Attackers can leverage this flaw to execute arbitrary code, potentially gaining full control over the affected device. This could lead to unauthorized access to sensitive data, disruption of network services, or further lateral movement within the network. The business impact includes potential data breaches, operational downtime, and reputational damage, particularly for organizations relying on Tenda W15E routers for critical infrastructure.
2. Potential Attack Scenarios
A potential attack scenario involves an attacker targeting a Tenda W15E router exposed to the internet. The attacker crafts a malicious payload designed to exploit the buffer overflow vulnerability in the `formSetSysTime` function. By sending a specially crafted HTTP request to the `/goform/SetSysTimeCfg` endpoint, the attacker overflows the stack buffer, overwriting critical memory regions. This allows the attacker to execute arbitrary code with the privileges of the affected service, typically root or administrative access.
Once the attacker gains control of the router, they can manipulate network traffic, intercept sensitive data, or deploy additional malware. For example, the attacker could redirect DNS queries to malicious servers, enabling phishing attacks or man-in-the-middle (MITM) attacks. Alternatively, the attacker could use the compromised router as a pivot point to infiltrate other devices on the internal network, escalating the attack's scope and impact. The potential outcomes include data exfiltration, service disruption, and complete network compromise.
3. Mitigation Recommendations
Immediate action is required to mitigate this vulnerability. Organizations using Tenda W15E routers should:
- Disconnect affected devices from the internet or restrict access to trusted IP addresses only.
- Monitor for firmware updates from Tenda and apply patches as soon as they become available. Given the vendor's lack of response to the initial disclosure, organizations should consider alternative router solutions if timely updates are not provided.
- Implement network segmentation to limit the potential impact of a compromised device.
- Deploy intrusion detection systems (IDS) or intrusion prevention systems (IPS) to detect and block exploitation attempts targeting this vulnerability.
- Regularly review and update firewall rules to minimize exposure to external threats.
For additional guidance, refer to the following resources:
- PacketStorm Security: https://packetstormsecurity.com/search/?q=CVE-2024-4126
- VulDB Entry: https://vuldb.com/?id.261869
- GitHub Exploit Details: https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/W15Ev1.0/formSetSysTime.md
4. Executive Summary
CVE-2024-4126 is a critical vulnerability in Tenda W15E routers that allows remote attackers to execute arbitrary code via a stack-based buffer overflow. This flaw poses a significant risk to organizations using affected devices, as it can lead to unauthorized access, data breaches, and service disruptions. The vulnerability is easily exploitable, with public proof-of-concept code available, increasing the likelihood of attacks.
To mitigate this risk, organizations should immediately isolate affected devices, monitor for firmware updates, and consider alternative solutions if patches are not promptly released. Implementing network segmentation and deploying intrusion detection systems can further reduce the attack surface. Addressing this vulnerability is critical to safeguarding sensitive data, maintaining operational continuity, and protecting organizational reputation. Immediate action is strongly recommended to prevent potential exploitation and its associated business impacts.
Severity: HIGH
Description: A vulnerability was found in Tenda W15E 15.11.0.14. It has been classified as critical. Affected is the function guestWifiRuleRefresh. The manipulation of the argument qosGuestDownstream leads to stack-based buffer overflow. It is possible to launch the attack remotely. VDB-261870 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
CVSS Score: 8.8
B
No data available.
No data available.
1. Risk Assessment
The vulnerability identified as CVE-2024-4127 is a critical stack-based buffer overflow in the Tenda W15E router firmware version 15.11.0.14. The flaw resides in the guestWifiRuleRefresh function, specifically in the manipulation of the qosGuestDownstream argument. This vulnerability is remotely exploitable, requiring low attack complexity and only low privileges, making it highly accessible to attackers. The CVSS v3.1 base score of 8.8 (HIGH) underscores its severity, with impacts on confidentiality, integrity, and availability rated as high.
The likelihood of exploitation is significant due to the remote attack vector and the widespread use of Tenda routers in home and small business environments. Attackers could exploit this vulnerability to execute arbitrary code, potentially gaining full control of the device. This could lead to unauthorized access to sensitive data, disruption of network services, or even the deployment of malware. The business impact could include operational downtime, data breaches, and reputational damage, particularly for organizations relying on these devices for critical network infrastructure.
2. Potential Attack Scenarios
An attacker could exploit this vulnerability by sending a specially crafted network packet to the Tenda W15E router, targeting the guestWifiRuleRefresh function. The malicious payload would manipulate the qosGuestDownstream argument to trigger a stack-based buffer overflow. This overflow could overwrite critical memory regions, allowing the attacker to execute arbitrary code with the privileges of the affected process.
Once the attacker gains control, they could pivot to other devices on the network, exfiltrate sensitive data, or deploy ransomware. For example, an attacker could compromise the router, disable security features, and use it as a launchpad for further attacks on connected devices. The potential outcomes include complete compromise of the router, unauthorized access to network traffic, and disruption of internet services for all connected users.
3. Mitigation Recommendations
Immediate action is required to mitigate this vulnerability. Organizations and individuals using the Tenda W15E router should:
- Discontinue use of the affected firmware version (15.11.0.14) and upgrade to a patched version if available.
- If no patch is available, consider replacing the device with a more secure alternative.
- Implement network segmentation to limit the impact of a potential compromise.
- Monitor network traffic for unusual activity that may indicate exploitation attempts.
- Apply strict access controls to the router's administrative interface, ensuring only authorized users can make configuration changes.
For further technical details and updates, refer to the following resources:
- VulDB entry: https://vuldb.com/?id.261870
- PacketStorm Security: https://packetstormsecurity.com/search/?q=CVE-2024-4127
- GitHub repository with additional details: https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/W15Ev1.0/guestWifiRuleRefresh.md
4. Executive Summary
CVE-2024-4127 is a critical vulnerability in the Tenda W15E router firmware that allows remote attackers to execute arbitrary code via a stack-based buffer overflow. This flaw poses a high risk to organizations and individuals using the affected devices, as it can lead to unauthorized access, data breaches, and service disruptions. The vulnerability is easily exploitable and has the potential to cause significant operational and reputational damage.
To address this issue, immediate action is required. Users should upgrade to a patched firmware version or replace the device if no patch is available. Implementing network segmentation and strict access controls can further reduce the risk of exploitation. The urgency of addressing this vulnerability cannot be overstated, as delaying mitigation efforts increases the likelihood of a successful attack. Proactive measures are essential to safeguard network integrity and protect sensitive data.