CVE-2005-3029 in V3Net
Summary
by MITRE
Stack-based buffer overflow in AhnLab V3Pro 2004 build 6.0.0.383, V3 VirusBlock 2005 build 6.0.0.383, and V3Net for Windows Server 6.0 build 6.0.0.383 allows remote attackers to execute arbitrary code via a long filname in an ACE archive.
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Analysis
by VulDB Data Team • 06/12/2019
The vulnerability identified as CVE-2005-3029 represents a critical stack-based buffer overflow affecting multiple products in the AhnLab V3 security suite. This flaw exists in versions 6.0.0.383 of AhnLab V3Pro 2004, V3 VirusBlock 2005, and V3Net for Windows Server, creating a significant security risk that can be exploited remotely. The vulnerability specifically manifests when these security applications process ACE archive files containing excessively long filenames, allowing attackers to manipulate memory structures through carefully crafted input. This type of buffer overflow vulnerability falls under the CWE-121 category of Stack-based Buffer Overflow, where insufficient bounds checking enables attackers to overwrite adjacent memory locations on the stack. The affected products are widely deployed in enterprise environments, making this vulnerability particularly dangerous as it could provide attackers with unauthorized code execution privileges on systems running these security applications.
The technical implementation of this vulnerability exploits the lack of proper input validation within the ACE archive processing functionality of AhnLab V3 products. When an ACE archive containing an overly long filename is processed, the application fails to validate the length of the filename before copying it into a fixed-size stack buffer. This allows an attacker to exceed the buffer boundaries and overwrite return addresses, saved registers, and other critical stack data. The attack vector is particularly concerning as it requires no local privileges or user interaction, enabling remote exploitation through maliciously crafted ACE archives. The vulnerability demonstrates the classic characteristics of a stack buffer overflow where the attacker can control the overwritten memory contents to redirect program execution flow, potentially leading to arbitrary code execution with the privileges of the affected application process. According to ATT&CK framework, this vulnerability maps to T1059.007 for Command and Scripting Interpreter and T1068 for Exploitation for Privilege Escalation.
The operational impact of this vulnerability extends beyond simple code execution, as it fundamentally compromises the security posture of systems running affected AhnLab V3 products. Organizations using these security applications may find their defensive infrastructure compromised, potentially allowing attackers to bypass security controls or establish persistent access to network resources. The remote exploit capability means that attackers can target vulnerable systems without requiring physical access or user interaction, making detection and mitigation more challenging. Systems that rely on these security applications for protection become vulnerable attack vectors themselves, as successful exploitation could enable attackers to gain elevated privileges or access to sensitive system resources. The vulnerability affects enterprise security deployments where these products are commonly used for endpoint protection, network monitoring, and threat detection, potentially undermining the very security measures designed to protect against such attacks. Organizations may experience cascading security failures if attackers successfully exploit this vulnerability, as the compromised security applications could no longer be trusted to provide adequate protection against other threats.
Mitigation strategies for CVE-2005-3029 should prioritize immediate patch deployment from AhnLab, as this represents the most effective solution to address the underlying buffer overflow. System administrators should implement network segmentation and access controls to limit exposure of vulnerable systems to untrusted networks or file transfers. Monitoring for suspicious ACE archive processing activities and implementing file type restrictions can help detect potential exploitation attempts. Organizations should also consider implementing application whitelisting policies to prevent execution of untrusted archive processing utilities. The security community should maintain awareness of this vulnerability through vulnerability management systems and security advisories, as similar patterns of buffer overflow vulnerabilities have been documented in other security applications. Regular security assessments and penetration testing should include verification of patch status for these specific AhnLab V3 product versions, ensuring that all endpoints and servers running these applications are properly updated. Additionally, implementing network-based intrusion detection systems with signatures for known ACE archive exploitation patterns can provide early warning of potential attacks targeting this vulnerability, enabling faster incident response and containment procedures.