CVE-2024-32906 in Android
Summary
by MITRE • 06/14/2024
In AcvpOnMessage of avcp.cpp, there is a possible EOP due to uninitialized data. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
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Analysis
by VulDB Data Team • 08/09/2024
The vulnerability identified as CVE-2024-32906 resides within the AcvpOnMessage function of the avcp.cpp file, representing a critical security flaw that enables local privilege escalation without requiring any additional privileges or user interaction. This type of vulnerability falls under the category of uninitialized memory access issues that can be exploited by malicious actors to gain elevated system privileges. The flaw stems from improper initialization of data structures within the cryptographic processing framework, creating potential attack vectors that could be leveraged for unauthorized system access.
The technical implementation of this vulnerability demonstrates a classic case of uninitialized data exposure where the AcvpOnMessage function fails to properly initialize memory before utilizing it in cryptographic operations. This uninitialized data can contain residual information from previous operations or system memory states, which when processed through the cryptographic functions could lead to unpredictable behavior. The vulnerability specifically affects the Advanced Cryptographic Validation Protocol implementation, which is designed to validate cryptographic modules against federal standards. According to CWE-457, this represents a use of uninitialized variables, which is a well-documented weakness that can lead to various security implications including privilege escalation. The absence of proper initialization creates a scenario where attackers can potentially manipulate the uninitialized memory to alter program execution flow or access restricted system resources.
From an operational perspective, the impact of this vulnerability is particularly severe as it enables local privilege escalation without requiring any additional execution privileges or user interaction. This means that any user with access to the system can potentially exploit this flaw to elevate their privileges to root or administrator level, creating a significant security risk for any system running the affected software. The lack of user interaction requirement makes this vulnerability particularly dangerous as it can be exploited automatically without the need for social engineering or additional attack vectors. The vulnerability affects systems where the Advanced Cryptographic Validation Protocol is implemented, which is commonly used in security-critical applications and systems that require cryptographic validation against federal standards. The exploitation process typically involves leveraging the uninitialized memory to manipulate program execution paths or access restricted memory regions that should only be accessible to privileged processes, as outlined in the ATT&CK framework under privilege escalation techniques.
The mitigation strategies for this vulnerability should focus on immediate code-level fixes that ensure proper initialization of all data structures within the AcvpOnMessage function. System administrators should prioritize applying vendor patches and updates as soon as they become available, as this vulnerability represents a critical threat that could allow complete system compromise. The remediation process should include thorough code review and static analysis to identify any other instances of uninitialized variable usage within the cryptographic validation framework. Organizations should also implement monitoring and logging mechanisms to detect any unusual privilege escalation attempts that might indicate exploitation of this vulnerability. Additionally, implementing proper access controls and privilege separation measures can help limit the potential impact even if the vulnerability is not immediately patched. The vulnerability underscores the importance of following secure coding practices and adhering to industry standards such as those defined in the NIST Cryptographic Module Validation Program, which requires rigorous testing and validation of cryptographic implementations to prevent exactly these types of security flaws from being introduced into production systems.