CVE-2022-32599 in MT6580
Summary
by MITRE • 04/06/2023
In rpmb, there is a possible out of bounds write due to a logic error. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07460390; Issue ID: ALPS07460390.
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Analysis
by VulDB Data Team • 05/30/2026
The vulnerability identified as CVE-2022-32599 affects the rpmb component within Android systems, representing a critical out-of-bounds write condition that stems from a fundamental logic error in the implementation. This flaw exists within the rpmb subsystem which is responsible for managing secure boot and trusted execution environments on mobile devices. The vulnerability manifests when processing certain input data structures that exceed expected boundaries, allowing malicious code to overwrite adjacent memory locations. The issue is particularly concerning because it enables local privilege escalation to system-level execution privileges, requiring only local access to the device without any user interaction for exploitation. This characteristic aligns with ATT&CK technique T1068 which describes local privilege escalation through system-level execution.
The technical implementation flaw occurs within the rpmb module's memory management functions where boundary checks fail to properly validate input parameters before performing memory operations. When the system processes malformed or oversized data structures, the logic error causes the program to write data beyond the allocated memory buffer, potentially overwriting critical system structures or executable code. This memory corruption can be leveraged to execute arbitrary code with elevated privileges, effectively bypassing the normal security boundaries that separate user applications from system-level processes. The vulnerability's classification as a logic error rather than a simple buffer overflow indicates that the flaw lies in the program flow control rather than basic memory handling, making it more subtle and potentially harder to detect through standard security scanning tools.
From an operational perspective, this vulnerability poses significant risks to mobile device security as it allows attackers with local access to escalate their privileges without requiring user interaction or network connectivity. The patch ID ALPS07460390 specifically addresses this issue by implementing proper boundary checking mechanisms and correcting the flawed logic that permitted the out-of-bounds write operations. Security researchers have noted that the vulnerability's impact extends beyond simple privilege escalation, as successful exploitation can potentially lead to complete system compromise and data exfiltration. The absence of user interaction requirements makes this vulnerability particularly dangerous in environments where local access to devices is possible, such as in corporate settings or public spaces where devices might be left unattended.
Mitigation strategies for CVE-2022-32599 should prioritize immediate deployment of the Android patch referenced by ALPS07460390, which specifically addresses the logic error within the rpmb module. Organizations should also implement additional security monitoring to detect anomalous memory access patterns that might indicate exploitation attempts. The vulnerability demonstrates the importance of robust input validation and boundary checking in security-critical components, aligning with CWE principle 129 which emphasizes the need for proper input validation to prevent buffer overflow conditions. System administrators should consider implementing device management policies that enforce timely patch deployment and monitor for signs of privilege escalation attempts that could indicate exploitation of this vulnerability. Additionally, security teams should conduct regular vulnerability assessments focusing on memory management functions within trusted execution environments to identify similar logic errors that could lead to comparable security impacts.