CVE-2024-27235 in Android
Summary
by MITRE • 03/11/2024
In plugin_extern_func of TBD, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
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Analysis
by VulDB Data Team • 11/06/2024
The vulnerability identified as CVE-2024-27235 resides within the plugin_extern_func component of an unspecified software system, representing a critical security flaw that undermines data integrity and confidentiality. This issue manifests as a potential out-of-bounds read condition that occurs when the system fails to validate input parameters before processing them. The absence of proper bounds checking creates an exploitable pathway where malicious actors can access memory locations beyond the intended buffer boundaries, potentially exposing sensitive data stored in adjacent memory regions. Such vulnerabilities typically arise in environments where input validation mechanisms are insufficient or absent, particularly in plugin architectures where external functions interact with system memory without adequate safeguards.
The technical implementation of this flaw demonstrates a classic buffer over-read vulnerability pattern that aligns with CWE-125, which specifically addresses out-of-bounds read conditions in software implementations. The vulnerability operates at the memory management level where the plugin_extern_func routine does not perform adequate bounds verification before accessing allocated memory segments. This allows an attacker to potentially read data that should remain inaccessible, including system credentials, configuration details, or other sensitive information that may be stored in adjacent memory locations. The flaw's nature suggests that it operates within a context where user-supplied data is processed without proper input sanitization, creating a direct pathway for information disclosure attacks.
From an operational perspective, the impact of CVE-2024-27235 extends beyond simple data exposure to potentially compromise system security posture and confidentiality controls. The vulnerability requires no additional execution privileges for exploitation, meaning that any user with access to the plugin functionality can trigger the information disclosure without requiring elevated permissions or specialized attack tools. This characteristic significantly increases the attack surface and makes the vulnerability particularly dangerous in environments where multiple users have access to plugin systems. The lack of user interaction requirements further simplifies exploitation, as attackers can systematically probe for vulnerable systems without needing to engage in complex social engineering or user manipulation techniques. This aligns with ATT&CK technique T1005 which focuses on data from local system storage, and T1059 which covers command and scripting interpreter execution patterns that may be leveraged to exploit such vulnerabilities.
The mitigation strategies for this vulnerability should prioritize immediate implementation of bounds checking mechanisms within the plugin_extern_func routine and comprehensive code review of all external function interfaces. System administrators should implement input validation controls that enforce strict parameter boundaries before any memory access occurs, ensuring that buffer limits are consistently enforced regardless of input source. Additionally, deployment of runtime protection mechanisms such as address space layout randomization and stack canaries can provide additional defense-in-depth layers against exploitation attempts. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities within plugin architectures, particularly focusing on external function interfaces that may lack proper bounds checking. The remediation process should also include comprehensive logging and monitoring of plugin function calls to detect anomalous access patterns that may indicate exploitation attempts, while maintaining compliance with security standards such as those outlined in ISO/IEC 27001 and NIST SP 800-53 for information system security controls.