CVE-2017-2724 in P10
Summary
by MITRE
Bastet in P10 Plus and P10 smart phones with software Eariler than VKY-AL00C00B123 verisons,Earlier than VTR-AL00C00B123 versions have a buffer overflow vulnerability. 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 continuous system reboot or arbitrary code execution.
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Analysis
by VulDB Data Team • 01/11/2023
The vulnerability identified as CVE-2017-2724 represents a critical buffer overflow flaw within the Bastet component of certain Huawei P10 Plus and P10 smartphone models. This vulnerability specifically affects devices running software versions prior to VKY-AL00C00B123 and VTR-AL00C00B123, creating a persistent security risk that can be exploited through malicious application installation. The flaw resides in the system's handling of specific data modifications that occur during the boot process, making it particularly dangerous as it can be triggered during normal system operation. The vulnerability's classification aligns with CWE-121, which addresses stack-based buffer overflow conditions, and represents a significant weakness in the device's memory management capabilities.
The technical implementation of this vulnerability occurs when an attacker with root privileges manipulates the Android system to install a malicious application that can modify specific system data structures. During the subsequent system reboot process, this modified data triggers a buffer overflow condition within the Bastet component, which is responsible for handling certain system initialization routines. The buffer overflow occurs because the system fails to properly validate the size of data being written to memory buffers, allowing an attacker to overwrite adjacent memory locations. This type of vulnerability falls under the ATT&CK framework category of T1059, which encompasses execution through command and scripting interpreters, and T1068, which involves exploit for privilege escalation.
The operational impact of this vulnerability extends beyond simple system instability, as it can lead to continuous system reboot loops that render the device unusable for extended periods. In more severe scenarios, the buffer overflow can be leveraged to achieve arbitrary code execution, potentially allowing attackers to gain complete control over the device's operating system. This makes the vulnerability particularly dangerous for users who may be targeted by malicious actors, as it can be exploited without requiring user interaction beyond the initial installation of the malicious application. The persistent nature of the vulnerability means that even after the malicious app is removed, the system may continue to reboot or execute unintended code during the boot process.
Mitigation strategies for CVE-2017-2724 should prioritize immediate software updates to the affected Huawei devices, ensuring that users upgrade to versions VKY-AL00C00B123 or later. System administrators should implement network-level controls to prevent installation of untrusted applications and maintain strict application vetting processes. Additionally, users should be educated about the risks of installing applications from untrusted sources and the importance of keeping their devices updated with the latest security patches. The vulnerability's exploitation requires root privileges, making it essential for organizations to maintain proper privilege controls and implement least-privilege access models. Regular security audits should be conducted to identify and remediate similar vulnerabilities in other system components, as this type of buffer overflow represents a common class of security flaws that can be exploited across multiple platforms and device types.