CVE-2008-2514 in AIX
Summary
by MITRE
Buffer overflow in errpt in IBM AIX 5.2, 5.3, and 6.1 allows local users to gain privileges via unknown attack vectors.
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Analysis
by VulDB Data Team • 05/27/2025
The vulnerability identified as CVE-2008-2514 represents a critical buffer overflow flaw within the errpt utility of IBM AIX operating systems across versions 5.2, 5.3, and 6.1. This buffer overflow vulnerability exists within the error reporting component of the system and specifically affects the errpt command which is used to display system error logs and messages. The flaw occurs when the utility processes certain input parameters without proper bounds checking, creating an exploitable condition that could be leveraged by local attackers to execute arbitrary code with elevated privileges. The vulnerability is particularly concerning because it resides within a system utility that is typically accessible to local users and operates with sufficient privileges to potentially escalate access. This issue falls under the CWE-121 buffer overflow category, which represents a fundamental flaw in memory management where data written to a buffer exceeds the allocated bounds, potentially corrupting adjacent memory locations.
The technical implementation of this vulnerability stems from improper input validation within the errpt utility's parameter handling mechanisms. When local users execute the errpt command with malformed or excessively long arguments, the program fails to validate the input length against the allocated buffer size, resulting in memory corruption that can be exploited to overwrite critical memory locations including return addresses or function pointers. This type of buffer overflow can be manipulated to redirect program execution flow, potentially allowing attackers to execute malicious code with the privileges of the errpt utility itself. The attack vectors remain unspecified in the original CVE description, which suggests that the exact method of exploitation may have been discovered through extensive analysis or was not fully documented at the time of reporting. This ambiguity in attack vectors is typical for such vulnerabilities where the exploitation technique requires deep understanding of the target system's memory layout and execution context.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it can compromise the integrity and confidentiality of the entire AIX system. Local users who can successfully exploit this vulnerability gain the ability to execute arbitrary code with elevated privileges, potentially allowing them to modify system files, install backdoors, or access sensitive data. The exploitation could lead to complete system compromise, as the errpt utility typically operates with sufficient privileges to access system resources that would otherwise be restricted. This vulnerability also demonstrates the importance of proper input validation in system utilities and highlights the risks associated with legacy code that may not have been updated to address modern security requirements. The affected versions of AIX represent a range of enterprise-level operating systems where such vulnerabilities can have significant business impact, particularly in mission-critical environments where system availability and security are paramount. The vulnerability aligns with ATT&CK technique T1068 which covers local privilege escalation through the exploitation of system vulnerabilities, and T1059 which covers execution through command and scripting interpreters.
Mitigation strategies for CVE-2008-2514 should focus on immediate patching of affected systems with the vendor-provided security updates. IBM released specific fixes for this vulnerability in subsequent AIX updates, which should be deployed immediately across all affected systems. System administrators should also implement additional security controls such as restricting access to the errpt utility to only trusted users and monitoring for unusual execution patterns of this utility. The vulnerability underscores the importance of maintaining up-to-date security patches and conducting regular vulnerability assessments of system utilities. Organizations should also consider implementing privilege separation mechanisms and access controls to limit the potential impact of such vulnerabilities. Additionally, system hardening practices including disabling unnecessary services and utilities, implementing proper input validation at all levels, and maintaining comprehensive system logging for security monitoring should be employed. Regular security training for system administrators on identifying and mitigating buffer overflow vulnerabilities is also essential, as these types of flaws remain common in legacy systems and can provide attackers with significant access privileges. The vulnerability serves as a reminder of the critical importance of timely patch management and the need for continuous security monitoring in enterprise environments.