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F-Secure Products Zip Archive Virus Detection Bypass Vulnerability Advisory Available in Danish 

Secunia Advisory: SA13263  
Release Date: 2004-11-23
Last Update: 2005-08-22

Critical:
Moderately critical
Impact: Security Bypass
Where: From remote
Solution Status: Vendor Patch

Software:F-Secure Anti-Virus 2004
F-Secure Anti-Virus 2005
F-Secure Anti-Virus 5.x
F-Secure Anti-Virus Client Security 5.x
F-Secure Anti-Virus for Firewalls 6.x
F-Secure Anti-Virus for Linux 4.x
F-Secure Anti-Virus for Microsoft Exchange 6.x
F-Secure Anti-Virus for MIMEsweeper 5.x
F-Secure Anti-Virus for Samba Servers 4.x
F-Secure Anti-Virus for Workstations 5.x
F-Secure Internet Gatekeeper 6.x
F-Secure Internet Security 2004
F-Secure Internet Security 2005

CVE reference:CVE-2004-2442 (Secunia mirror)

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Description:
A vulnerability has been reported in various F-Secure products, which can be exploited by malware to bypass certain scanning functionality.

The vulnerability is caused due to an error when parsing ".zip" archives and can be exploited via a specially crafted ".zip" archive, which the scanner incorrectly calculates be of zero length.

Successful exploitation causes malware in a specially crafted ".zip" archive to bypass the scanning functionality.

NOTE: This is not a critical issue on client systems, as the malware still is detected when it is extracted.

The vulnerability affects the following products:
* F-Secure Internet Security 2004 and 2005
* F-Secure Anti-Virus 2004 and 2005
* F-Secure Anti-Virus for Workstation version 5.43 and earlier
* F-Secure Anti-Virus for Windows Servers version 5.50 and earlier
* F-Secure Anti-Virus for Linux Workstations version 4.52 and earlier
* F-Secure Anti-Virus for Linux Servers version 4.61 and earlier
* F-Secure Anti-Virus for Samba Servers version 4.60
* F-Secure Anti-Virus Linux Client Security 5.00
* F-Secure Anti-Virus for MIMEsweeper version 5.50 and earlier
* F-Secure Anti-Virus Client Security version 5.55 and earlier
* F-Secure Internet Gatekeeper version 6.41 and earlier
* F-Secure Anti-Virus for Firewalls version 6.20 and earlier
* F-Secure Anti-Virus for MS Exchange version 6.31 and earlier
* F-Secure Anti-Virus for MS Exchange version 6.01 and earlier
* F-Secure Anti-Virus for Linux Gateways version 4.61 and earlier
* F-Secure Internet Gatekeeper for Linux 2.06 and earlier
* F-Secure Anti-Virus Linux Server Security 5.00
* Solutions based on F-Secure Personal Express version 5.00 and earlier

Do you have this product installed on your home computer? Scan using the free Personal Software Inspector. Check if a vulnerable version is installed on computers in your corporate network, scan using the Network Software Inspector.

Solution:
See patch matrix in original advisory.

Provided and/or discovered by:
Reported by vendor.

Changelog:
2005-08-22: Added CVE reference.

Original Advisory:
http://www.f-secure.com/security/fsc-2004-3.shtml



Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.

Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

21 Related Secunia Security Advisories, displaying 10

1. F-Secure Archives Handling Unspecified Vulnerabilities
2. F-Secure Products CAB and RAR Archives Security Bypass
3. F-Secure LHA and RAR Archives Security Bypass
4. F-Secure Packed Executable and Archive Scanning Denial of Service
5. F-Secure Anti-Virus Real-Time Scanning Component Privilege Escalation
6. F-Secure Products LHA Archive Handling Buffer Overflow
7. F-Secure Products OpenSSL ASN.1 Denial Of Service Vulnerability
8. F-Secure Antivirus Products Scanning Bypass Vulnerability
9. F-Secure Products Web Console Buffer Overflow Vulnerability
10. F-Secure Anti-Virus Archive Handling Vulnerabilities

Show all related advisories


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