CVE-2007-5219 in PowerDVD
Summary
by MITRE
Directory traversal vulnerability in the CLAVSetting.CLSetting.1 ActiveX control in CLAVSetting.DLL 1.00.1829 in the CLAVSetting module in CyberLink PowerDVD 7.0 allows remote attackers to create or overwrite arbitrary files via a .. (dot dot) in the argument to the CreateNewFile method.
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Analysis
by VulDB Data Team • 10/07/2024
The CVE-2007-5219 vulnerability represents a critical directory traversal flaw within the CLAVSetting.ActiveX control ecosystem of CyberLink PowerDVD 7.0 software. This vulnerability specifically affects the CLAVSetting.DLL component version 1.00.1829 and manifests through the CLAVSetting.CLSetting.1 ActiveX control which exposes the CreateNewFile method. The flaw arises from insufficient input validation within the ActiveX control implementation, allowing malicious actors to exploit the directory traversal mechanism through crafted dot-dot (..) sequences in method arguments. This vulnerability classifies under CWE-22 - Improper Limitation of a Pathname to a Restricted Directory, which is a fundamental security weakness in path handling mechanisms.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious argument containing directory traversal sequences such as ..\..\\ or similar patterns and passes them to the CreateNewFile method of the vulnerable ActiveX control. The control fails to properly sanitize these inputs, allowing the traversal sequences to be interpreted by the underlying file system operations. This results in the ability to create or overwrite files in arbitrary locations on the target system, potentially including system-critical directories or protected files. The vulnerability specifically targets Windows operating systems where ActiveX controls are supported and where PowerDVD 7.0 is installed, making it particularly dangerous in enterprise environments where these legacy applications may still be present.
The operational impact of CVE-2007-5219 is substantial and multifaceted, representing a significant privilege escalation vector that can lead to complete system compromise. Attackers can leverage this vulnerability to place malicious files in system directories, potentially enabling persistent backdoors, rootkits, or other malicious payloads that persist across system reboots. The vulnerability also allows for arbitrary file overwrites, which could be used to corrupt critical system files or replace legitimate executables with malicious versions. This makes it particularly dangerous in environments where users may be tricked into visiting malicious websites or opening infected email attachments that trigger the vulnerable ActiveX control through Internet Explorer or other browsers that support ActiveX. The vulnerability directly aligns with ATT&CK technique T1059.007 - Command and Scripting Interpreter: PowerShell, as attackers can use the ability to write files to create PowerShell-based payloads or scripts that execute malicious commands.
Mitigation strategies for CVE-2007-5219 should focus on both immediate remediation and long-term security hardening measures. The most effective immediate solution is the complete uninstallation of CyberLink PowerDVD 7.0 or the specific CLAVSetting module that contains the vulnerable ActiveX control. Organizations should also implement browser security restrictions that disable ActiveX controls or configure ActiveX controls to run only in trusted zones. The use of modern security controls such as exploit protection mechanisms, application whitelisting, and sandboxing can provide additional layers of defense against exploitation attempts. Network-based mitigations including web application firewalls and content filtering solutions can help prevent access to malicious content that might trigger this vulnerability. Security teams should also conduct comprehensive asset inventories to identify all systems running vulnerable versions of PowerDVD and ensure proper patching or removal of the affected software components. The vulnerability's classification under CWE-22 emphasizes the importance of implementing robust input validation and path sanitization mechanisms in all software components that handle file system operations, particularly those exposed through web or ActiveX interfaces.