CVE-2012-0224 in AQUIS
Summary
by MITRE
Untrusted search path vulnerability in 7-Technologies (7T) AQUIS 1.5 and earlier allows local users to gain privileges via a Trojan horse DLL in the current working directory, a different vulnerability than CVE-2012-0223.
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Analysis
by VulDB Data Team • 04/10/2017
The vulnerability identified as CVE-2012-0224 represents a critical untrusted search path issue within 7-Technologies AQUIS version 1.5 and earlier systems. This flaw resides in the software's dynamic link library loading mechanism, where the application fails to properly validate the source of dynamically loaded libraries. The vulnerability specifically affects systems where the application searches for required DLL files in the current working directory before examining system directories, creating an exploitable condition that can be leveraged by local attackers.
The technical implementation of this vulnerability stems from improper DLL resolution behavior in the AQUIS software. When the application attempts to load a required dynamic link library, it follows a search order that prioritizes the current working directory over system directories such as system32. This design flaw allows a local attacker to place a maliciously crafted DLL file in the same directory as the vulnerable application, causing the system to execute the attacker-controlled code with the privileges of the targeted user. This behavior directly aligns with CWE-427, which describes uncontrolled search path dependencies where applications search for libraries in insecure locations.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it provides attackers with a foothold for further system compromise. Local users who can manipulate the current working directory can execute arbitrary code within the security context of the target application, potentially leading to full system compromise if the application runs with elevated privileges. The vulnerability's persistence is enhanced by the fact that it does not require network connectivity or user interaction, making it particularly dangerous in environments where local access is possible. This aligns with ATT&CK technique T1068, which covers local privilege escalation through exploitation of system vulnerabilities.
Mitigation strategies for this vulnerability should focus on both immediate remediation and architectural improvements. The most effective immediate solution involves updating to version 1.5.1 or later of the AQUIS software, which addresses the untrusted search path issue through proper DLL loading mechanisms. Additionally, system administrators should implement strict directory permissions to prevent unauthorized DLL placement in application directories. The principle of least privilege should be enforced by ensuring applications run with minimal required permissions, reducing the potential impact of successful exploitation. Security hardening measures such as disabling unnecessary DLL search paths and implementing application whitelisting can further reduce the attack surface. Organizations should also consider monitoring for suspicious DLL loading activities through endpoint detection and response solutions, as this vulnerability can be detected through anomalous library loading patterns in system logs.