Multiple F-Secure Anti-Virus LZH RAR archive security bypass

fsecure-lzh-rar-security-bypass (34942) The risk level is classified as LowLow Risk

Description:

Multiple F-Secure Anti-Virus applications could allow a remote attacker to bypass security restrictions, caused by improper parsing of LZH and RAR archives. By creating a specially-crafted LZH or RAR archive file containing a malicious archive file header field, an attacker could exploit this vulnerability to bypass scan detection, once the file is opened.

*CVSS:

Base Score: 2.8
  Access Vector: Remote
  Access Complexity: High
  Authentication: Not Required
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Partial
 
Temporal Score: 2.4
  Exploitability: High
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Bypass Security

Remedy:

Refer to F-Secure Security Bulletin FSC-2007-5 for patch, upgrade, or suggested workaround information. See References.

References:

  • F-Secure Security Bulletin FSC-2007-5: Scan bypass vulnerabilities in handling of specially crafted LHA and RAR archives.
  • BID-24525: F-Secure Multiple Anti-Virus Products LHA and RAR Archives Scan Bypass Vulnerability
  • CVE-2007-3300: Multiple F-Secure anti-virus products for Microsoft Windows and Linux before 20070619 allow remote attackers to bypass scanning via a crafted header in a (1) LHA or (2) RAR archive.
  • SA25738: F-Secure LHA and RAR Archives Security Bypass
  • SECTRACK ID: 1018266: F-Secure Anti-Virus May Fail to Scan Certain LHA and RAR Archives
  • SECTRACK ID: 1018267: F-Secure Internet Gatekeeper May Fail to Scan Certain LHA and RAR Archives
  • SECTRACK ID: 1018268: F-Secure Internet Security May Fail to Scan Certain LHA and RAR Archives
  • VUPEN/ADV-2007-2247: F-Secure Anti-Virus Products LHA and RAR File Handling Scan Bypass Vulnerability

Platforms Affected:

  • F-Secure Anti-Virus 2005
  • F-Secure Anti-Virus 2006
  • F-Secure Anti-Virus 2007
  • F-Secure Anti-Virus Client Security 7.00 and prior
  • F-Secure Anti-Virus for Citrix Servers 5.52
  • F-Secure Anti-Virus for Linux Gateways 4.65 and prior
  • F-Secure Anti-Virus for Linux Servers 4.65 and prior
  • F-Secure Anti-Virus for MIMEsweeper 5.61 and prior
  • F-Secure Anti-Virus for MS Exchange 7.00
  • F-Secure Anti-Virus for Windows Servers 7.00 and prior
  • F-Secure Anti-Virus for Workstation 7.0
  • F-Secure Anti-Virus Linux Client Sec 5.52 and prior
  • F-Secure Anti-Virus Linux Server Sec 5.52 and prior
  • F-Secure Internet Gatekeeper 6.61
  • F-Secure Internet Gatekeeper for Linux 2.16
  • F-Secure Internet Security 2005
  • F-Secure Internet Security 2006
  • F-Secure Internet Security 2007
  • F-Secure Protection for Consumers 7.00 and prior

Reported:

Jun 19, 2007

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