CVE-2008-7168 in UUUpgrade.ocx
Summary
by MITRE
Insecure method vulnerability in the UUSee UUUpgrade ActiveX control (UUUpgrade.ocx 3.0.2.12) allows remote attackers to force the download and overwrite of arbitrary files via crafted arguments to the Update method, as exploited in the wild in June 2009.
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Analysis
by VulDB Data Team • 07/20/2024
The CVE-2008-7168 vulnerability represents a critical insecure method flaw within the UUSee UUUpgrade ActiveX control version 3.0.2.12 which was widely exploited in 2009. This vulnerability specifically affects the Update method of the UUUpgrade.ocx component, creating a dangerous attack vector that allows remote adversaries to manipulate file operations on vulnerable systems. The flaw stems from inadequate input validation within the ActiveX control's implementation, enabling attackers to craft malicious arguments that bypass normal security restrictions. This vulnerability falls under the CWE-20 category of Improper Input Validation, which is a fundamental weakness in software security that allows malicious inputs to be processed without proper sanitization or verification.
The technical exploitation of this vulnerability occurs through the manipulation of the Update method parameters within the ActiveX control. When an attacker crafts specific arguments and invokes the Update method, the vulnerable control downloads files to arbitrary locations on the target system and overwrites existing files without proper authorization checks. This behavior creates a significant privilege escalation opportunity since the ActiveX control operates with the privileges of the user executing the vulnerable application. The attack typically involves hosting malicious content on a remote server and tricking users into visiting compromised websites or opening malicious documents that trigger the vulnerable ActiveX control. The exploitation process aligns with ATT&CK technique T1203 - Exploitation for Client Execution, where adversaries leverage client-side vulnerabilities to execute malicious code through trusted applications.
The operational impact of CVE-2008-7168 extends beyond simple file overwrites, as it enables attackers to deploy malware payloads, modify system files, and potentially establish persistent access to compromised systems. This vulnerability was particularly dangerous because UUSee software was widely distributed and installed on end-user machines, creating a vast attack surface. The exploitation pattern involved social engineering campaigns where users were lured to visit malicious websites hosting the vulnerable ActiveX control, making this vulnerability particularly effective in real-world scenarios. The vulnerability's persistence in the wild until 2009 demonstrates its effectiveness and the slow adoption of security patches by end-users who were often unaware of the risks associated with ActiveX controls.
Mitigation strategies for this vulnerability require multiple layers of defense since the flaw exists within the ActiveX control itself. The primary recommendation involves disabling ActiveX controls in web browsers or implementing strict security policies that prevent automatic execution of ActiveX components. Users should be educated about the risks of ActiveX controls and the importance of keeping software updated. System administrators should implement application whitelisting policies to prevent execution of untrusted ActiveX controls and ensure that vulnerable UUSee software is completely uninstalled from systems. Additionally, network security controls such as intrusion prevention systems and web application firewalls should be configured to detect and block traffic patterns associated with exploitation attempts. The vulnerability highlights the importance of proper input validation and secure coding practices, particularly for components that interact with file systems and network resources, as emphasized by security standards such as the OWASP Top Ten and NIST guidelines for secure software development practices.