Severity: Unknown
Description: The boot loaders of P10 and P10 Plus Huawei mobile phones with software the versions before Victoria-L09AC605B162, the versions before Victoria-L29AC605B162, the versions before Vicky-L29AC605B162 have an out-of-bounds memory access vulnerability due to the lack of parameter validation. An attacker with the root privilege of an Android system may trick a user into installing a malicious APP. the APP can modify specific data to cause buffer overflow in the next system reboot, causing out-of-bounds memory read which can continuous system reboot.
CVSS Score: N/A
D
No data available.
No data available.
1. Risk Assessment
The vulnerability CVE-2017-8149 is an out-of-bounds memory access issue within the boot loaders of Huawei P10 and P10 Plus mobile phones. The root cause is a lack of proper parameter validation during the boot process. This vulnerability allows an attacker with root privilege on the Android system to, through a malicious app, trigger a buffer overflow upon reboot, leading to an out-of-bounds memory read and potentially continuous system reboots. The business impact can range from moderate to significant depending on the use case of the device. A continuous reboot can disrupt normal phone operation, impacting productivity for users and potentially causing data loss if the device is frequently used for critical tasks. The likelihood of exploitation is moderate, as it requires root access and user installation of a malicious app, but the ease of exploitation is relatively high once those conditions are met. The primary impact is on availability, causing system instability. Confidentiality and integrity are potentially impacted if the memory read reveals sensitive data during the reboot loop, though this is secondary to the availability issue. The EPSS score of 0.000630000 indicates a relatively low, but non-negligible, risk.
2. Potential Attack Scenarios
An attacker could craft a malicious Android application that, once installed by a user with root access on a vulnerable Huawei P10 or P10 Plus, modifies specific data within the system. This data modification is designed to cause a buffer overflow during the next system reboot. When the phone is restarted, the boot loader attempts to read beyond the allocated memory buffer, leading to an out-of-bounds memory read. This can trigger a cascading effect causing a continuous reboot loop, effectively rendering the phone unusable until the issue is resolved. The attack vector is a user installing a seemingly legitimate, but actually malicious, app. The attack process involves the app modifying system data, the phone being rebooted, and the boot loader triggering the memory access error. The potential outcome is a denial-of-service condition with the phone stuck in a reboot loop.
3. Mitigation Recommendations
The primary mitigation is to update the Huawei P10 or P10 Plus to a software version beyond Victoria-L09AC605B162, Victoria-L29AC605B162, or Vicky-L29AC605B162. Users should check for available over-the-air (OTA) updates in their phone's settings. If OTA updates are not available, users can utilize Huawei’s HiSuite software to manually update their devices. In the short term, users can be cautious about which applications they grant root access to, minimizing the attack surface. Review app permissions carefully before granting root access. Further details can be found in the Huawei security advisory at http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20170816-01-smartphone-en.
4. Executive Summary
Huawei P10 and P10 Plus phones are susceptible to a vulnerability (CVE-2017-8149) that could cause them to repeatedly reboot, impacting user productivity. This occurs when a malicious app, installed on a phone with root access, triggers a memory error during the boot process. While the risk is relatively low, the impact to availability can be significant, potentially disrupting business operations or personal use. The solution is to update the phone's software to the latest version. It’s crucial to apply these updates promptly to ensure continued smooth operation of the devices and minimize disruption. Addressing this vulnerability is important to maintain the reliability of Huawei P10 and P10 Plus phones used within the organization.
Severity: Unknown
Description: The boot loaders of P10 and P10 Plus Huawei mobile phones with software the versions before Victoria-L09AC605B162, the versions before Victoria-L29AC605B162, the versions before Vicky-L29AC605B162 have an arbitrary memory write vulnerability due to the lack of parameter validation. An attacker with the root privilege of an Android system may trick a user into installing a malicious APP. The APP can modify specific data to cause arbitrary memory writing in the next system reboot, causing continuous system reboot or arbitrary code execution.
CVSS Score: N/A
D
No data available.
No data available.
1. Risk Assessment
The vulnerability, CVE-2017-8150, is an arbitrary memory write vulnerability in the boot loaders of Huawei P10 and P10 Plus mobile phones. The root cause is a lack of parameter validation during the boot process. This allows an attacker, with root privileges on the Android system, to craft a malicious application that modifies specific data. This modification results in arbitrary memory writing upon the next system reboot, potentially leading to continuous system reboots or arbitrary code execution. The business impact is moderate to high. A successful exploit could lead to denial of service, data compromise, or complete device control. The likelihood of exploitation is moderate, as it requires root privileges and user interaction to install the malicious app. Ease of exploitation is also moderate, as crafting the malicious app requires some technical skill, but readily available tools and exploit code could simplify the process. Impacts on confidentiality are potential if code execution is achieved, allowing for data exfiltration. Integrity is impacted through the arbitrary memory write, potentially corrupting system data. Availability is impacted through potential continuous reboots or system crashes. The EPSS score of 0.000970000 suggests a relatively low, but non-negligible, probability of exploitation in the wild.
2. Potential Attack Scenarios
An attacker can leverage this vulnerability through the following scenario: An attacker creates a malicious Android application. This application, seemingly benign to the user, requires root access to function fully. The user, trusting the app, grants root privileges. The application then modifies specific data within the Android system, targeting the boot loader parameters. Upon the next system reboot, the modified parameters trigger an arbitrary memory write in the boot loader. This write can either cause a continuous reboot loop, effectively denying the user access to the phone, or, more critically, allow the attacker to execute arbitrary code with system-level privileges. This code could then be used to steal data, install a backdoor, or completely control the device. The attack vector is a malicious application, the attack process involves gaining root access and modifying boot parameters, and the potential outcome is denial of service, data compromise, or full device control.
3. Mitigation Recommendations
The primary mitigation for CVE-2017-8150 is to update the Huawei P10 or P10 Plus to a software version newer than Victoria-L09AC605B162, Victoria-L29AC605B162, or Vicky-L29AC605B162. Users should check for updates in their phone's settings. For users who may not be able to immediately update, limiting the number of applications with root access can reduce the attack surface. Advise users to only install applications from trusted sources like the Google Play Store. Organizations deploying these phones should enforce a patching schedule and ensure all devices are running the latest available software version. Further information can be found in the Huawei security advisory: http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20170816-02-smartphone-en. Consider implementing a mobile device management (MDM) solution to facilitate patching and control application installations.
4. Executive Summary
Huawei P10 and P10 Plus phones are vulnerable to a memory write error (CVE-2017-8150) that could allow an attacker to cause system instability or gain control of the device. This happens when a malicious application, installed by a user, can modify critical system data during the boot process. This could result in phones repeatedly restarting or allowing attackers to steal data or install a backdoor. The risk is moderate, but the potential impact on users and the organization is significant, especially if sensitive data is stored on the devices. Updating to the latest software version is the most effective way to address this vulnerability. Organizations should prioritize patching these devices, and users should be cautious about granting root access to applications. Prompt action is recommended to protect against potential data compromise and service disruption.