CVE-2007-6060 in V3 Internet Security
Summary
by MITRE
AhnLab Antivirus 3 Internet Security 2008 Platinum appends data to a filename string at a location indicated by the "Filename length" field in a ZIP header, which allows remote attackers to cause a denial of service (machine crash) and possibly execute arbitrary code via a ZIP file in which this field s value is larger than the actual number of bytes in the filename.
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Analysis
by VulDB Data Team • 03/26/2019
The vulnerability identified as CVE-2007-6060 represents a critical buffer overflow flaw in AhnLab Antivirus 3 Internet Security 2008 Platinum that stems from improper handling of ZIP file headers. This issue manifests when the antivirus software processes a malformed ZIP archive where the "Filename length" field in the ZIP header contains a value that exceeds the actual number of bytes present in the filename data. The flaw resides in the software's decompression and file processing logic, specifically in how it interprets and manages the filename string allocation within the ZIP file structure. The vulnerability is classified under CWE-121 as a stack-based buffer overflow, which occurs when a program writes more data to a buffer than it can hold, leading to memory corruption and potentially arbitrary code execution.
The technical exploitation of this vulnerability involves crafting a malicious ZIP file with a manipulated filename length field that causes the antivirus software to allocate insufficient memory for the filename string. When the software attempts to append data to this improperly sized string, it overflows the allocated buffer space, leading to unpredictable behavior in the application's memory management. This memory corruption can result in the application crashing or, in more sophisticated attack scenarios, allow remote attackers to execute arbitrary code with the privileges of the antivirus process. The vulnerability is particularly concerning because it affects the core antivirus functionality, potentially allowing attackers to compromise systems that rely on this security software for protection.
The operational impact of CVE-2007-6060 extends beyond simple denial of service, as it can lead to complete system compromise when exploited successfully. Attackers can leverage this vulnerability to bypass the antivirus protection entirely, as the malicious code execution occurs within the context of the antivirus application itself. This creates a dangerous scenario where the security tool becomes the vector for system compromise rather than a protective barrier. The vulnerability affects systems running AhnLab Antivirus 3 Internet Security 2008 Platinum, and any environment where this specific version is deployed is at risk. The flaw can be exploited through various attack vectors including email attachments, web downloads, and file sharing networks, making it particularly dangerous in enterprise environments where antivirus software serves as a primary defense mechanism.
Mitigation strategies for CVE-2007-6060 focus on immediate software updates and patch management procedures. Organizations should prioritize updating to the latest version of AhnLab Antivirus 3 Internet Security that contains fixes for this vulnerability, as the vendor likely released a security patch addressing the buffer overflow issue. System administrators should implement strict file validation and scanning protocols for all incoming ZIP files, particularly those from untrusted sources. Network-level protections such as web application firewalls and email security gateways can provide additional layers of defense by filtering suspicious ZIP files before they reach endpoint systems. The vulnerability also highlights the importance of input validation and proper memory management in security software, as highlighted by ATT&CK technique T1059.3.002 for command and scripting interpreter usage. Regular security assessments and penetration testing should include evaluation of antivirus software behavior under malicious input conditions to identify similar buffer overflow vulnerabilities in other security tools and applications.