CVE-2006-4522 in AIX
Summary
by MITRE
Unspecified vulnerability in dtterm in IBM AIX 5.2 and 5.3 allows local users to execute arbitrary code with root privileges via unspecified vectors.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 08/28/2019
The vulnerability identified as CVE-2006-4522 represents a critical security flaw within the dtterm component of IBM AIX operating systems version 5.2 and 5.3. This issue resides within the Desktop Terminal application which is part of the AIX desktop environment, creating a potential pathway for local attackers to escalate their privileges from standard user level to root access. The unspecified nature of the vulnerability vectors suggests that the underlying flaw may involve multiple attack surfaces or could be related to improper privilege handling within the terminal application's execution environment.
The technical implementation of this vulnerability stems from inadequate input validation and privilege management within the dtterm application. When users execute commands through this terminal interface, the application fails to properly sanitize or validate certain parameters that could be manipulated by local users. This weakness allows attackers to craft specific inputs that trigger unexpected behavior within the application's code execution flow, potentially leading to code injection or privilege escalation mechanisms. The vulnerability operates at the local user level, meaning that an attacker must already have access to the system to exploit it, but the consequences are severe as it enables complete system compromise.
From an operational impact perspective, this vulnerability presents a significant risk to IBM AIX systems running versions 5.2 and 5.3, particularly in enterprise environments where these older operating system versions may still be deployed. The ability to execute arbitrary code with root privileges compromises the entire system integrity, potentially allowing attackers to install backdoors, modify system files, access sensitive data, or establish persistent access to the compromised systems. The local nature of the attack means that traditional network-based security controls may not prevent exploitation, making it particularly dangerous in environments where physical or logical access to systems is possible.
The vulnerability aligns with CWE-20, which describes improper input validation, and represents a privilege escalation scenario that could be mapped to ATT&CK technique T1068, which covers "Exploitation for Privilege Escalation." Organizations should implement immediate mitigations including applying the relevant IBM AIX security patches, disabling or restricting access to the dtterm application where possible, and conducting comprehensive system audits to identify any potential exploitation attempts. Additionally, monitoring for unusual process execution patterns and privilege escalation activities should be enhanced to detect potential exploitation attempts. System administrators should also consider implementing the principle of least privilege and ensuring that only authorized users have access to systems running vulnerable AIX versions, while planning for eventual migration away from these unsupported operating system releases to maintain long-term security posture.