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5.0

AhnLab V3Pro/VirusBlock/V3Net can be tricked to write files

CVE-2005-3030 · published 21 years ago
Summary

The archive‑unpacking part of AhnLab V3Pro 2004, V3 VirusBlock 2005 and V3Net for Windows Server can be fooled into creating files anywhere on the system when a compressed file contains a ".." in its name. An attacker could place malicious files in sensitive locations, potentially leading to unauthorized code execution or data exposure. Apply the latest security updates from AhnLab or disable automatic extraction of untrusted archives until a patch is installed.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
ahnlab v3_virusblock_2005 6.0.0.383
cpe:2.3:a:ahnlab:v3_virusblock_2005:6.0.0.383:*:*:*:*:*:*:*
ahnlab v3net 6.0.0.383
cpe:2.3:a:ahnlab:v3net:6.0.0.383:*:win_server:*:*:*:*:*
ahnlab v3pro_2004 6.0.0.383
cpe:2.3:a:ahnlab:v3pro_2004:6.0.0.383:*:*:*:*:*:*:*
Original advisory text
Directory traversal vulnerability in the archive decompression library 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 all...
Directory traversal vulnerability in the archive decompression library 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 write arbitrary files via a .. (dot dot) in the filename in a compressed archive.
References
Fix within
Internet-facing 14 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker partial control (estimated)
Severity
5.0 Medium
Exploitation
3% chance of attack within 30 days
Timeline
Published21 Sep 2005
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2005-3030 · NVD
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