F-Secure Anti-Virus ZIP archive bypass scanning
| fsecure-zip-scan-bypass (18217) |  Medium Risk |
Description:
F-Secure Anti-Virus could allow a remote attacker to bypass antivirus scanning. By creating a specially-crafted ZIP archive that spoofs a zero length, a remote attacker could prevent the scanner from scanning the malicious archive and bypass antivirus protection.
Platforms Affected:
- Debian, Debian Linux 3.0
- F-Secure, Anti-Virus 2004
- F-Secure, Anti-Virus 2005
- F-Secure, Anti-Virus Client Security 5.55 and prior
- F-Secure, Anti-Virus for Firewalls 6.20 and prior
- F-Secure, Anti-Virus for Linux Gateways 4.61 and prior
- F-Secure, Anti-Virus for Linux Servers 4.61 and prior
- F-Secure, Anti-Virus for Linux WS 4.52 and prior
- F-Secure, Anti-Virus for MIMEsweeper 5.50 and prior
- F-Secure, Anti-Virus for MS Exchange 6.01 and prior
- F-Secure, Anti-Virus for MS Exchange 6.31 and prior
- F-Secure, Anti-Virus for Samba Servers 4.60
- F-Secure, Anti-Virus for Windows Servers 5.42 and prior
- F-Secure, Anti-Virus for Workstation 5.43 and prior
- F-Secure, Anti-Virus Linux Client 5.00
- F-Secure, Anti-Virus Linux Server 5.00
- F-Secure, Internet Gatekeeper 6.41 and prior
- F-Secure, Internet Gatekeeper for Linux 2.06
- F-Secure, Internet Security 2004
- F-Secure, Internet Security 2005
- Microsoft, Windows 2003 Server
- RedHat, Enterprise Linux 2.1 WS
- RedHat, Enterprise Linux 2.1 AS
- RedHat, Enterprise Linux 2.1 ES
- RedHat, Enterprise Linux 3 ES
- RedHat, Enterprise Linux 3 AS
- RedHat, Enterprise Linux 3 WS
- RedHat, Enterprise Linux AS
- RedHat, Linux 7.3
- RedHat, Linux 8.0
- RedHat, Linux 9.0
- SuSE, Linux Enterprise Server 8
- SuSE, SuSE Linux 9.0
- SuSE, SuSE Linux 9.1
- SuSE, SuSE SLES 9
Remedy:
Apply the appropriate hotfix for your system, as listed in the F-Secure Security Bulletin FSC-2004-3. See References.
Consequences:
Bypass Security
References:
- CIAC Information Bulletin P-041, F-Secure Zip Archive Bypasses Scanning at http://www.ciac.org/ciac/bulletins/p-041.shtml.
- F-Secure Security Bulletin FSC-2004-3, ZIP-files with zero size may bypass scanning at http://www.f-secure.com/security/fsc-2004-3.shtml.
- BID-11732: F-Secure Anti-Virus ZIP Archive Scanner Bypass Vulnerability
- CVE-2004-2442: Multiple interpretation error in various F-Secure Anti-Virus products, including Workstation 5.43 and earlier, Windows Servers 5.50 and earlier, MIMEsweeper 5.50 and earlier, Anti-Virus for Linux Servers and Gateways 4.61 and earlier, and other products, allows remote attackers to bypass antivirus protection via a compressed file with both local and global headers set to zero, which does not prevent the compressed file from being opened on the target system.
- SA13263: F-Secure Products Zip Archive Virus Detection Bypass Vulnerability
- US-CERT VU#968818: Anti-virus software may not properly scan malformed zip archives
Reported:
Nov 23, 2004
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