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F-Secure Anti-Virus Internet Gatekeeper/Linux Gateway Privilege Escalation
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Secunia Advisory:
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SA17467
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Release Date:
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2005-11-07
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Last Update:
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2005-12-07
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Popularity:
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8,591 views
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Critical:
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Less critical
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Impact:
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Privilege escalation
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Where:
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Local system
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Solution Status:
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Vendor Patch
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| Software: | F-Secure Anti-Virus Linux Gateway 2.x
F-Secure Internet Gatekeeper for Linux 2.x
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| CVE reference: | CVE-2005-3546
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Description:
A vulnerability has been reported in F-Secure Anti-Virus Internet Gatekeeper for Linux and F-Secure Anti-Virus Linux Gateway, which can be exploited by malicious, local users to gain escalated privileges.
The vulnerability is caused due to several scripts being installed with the SUID bit set and are world executable. e.g. "/opt/f-secure/fsigk/cgi/*suid.cgi" and "/home/virusgw/cgi/*suid.cgi". These scripts can be exploited by malicious users to gain root privileges.
The vulnerability has been reported in the following versions:
* F-Secure Anti-Virus Internet Gatekeeper for Linux versions prior to 2.15.484.
* F-Secure Anti-Virus Linux Gateway versions prior to 2.16.
Solution:
Update to the fixed version or remove SUID bit from affected scripts.
-- Updating to fixed version --
F-Secure Internet Gatekeeper for Linux:
Update to version 2.15.484.
ftp://ftp.f-secure.com/support/hotfix/
http://www.f-secure.com/webclub/
F-Secure Anti-Virus Linux Gateway:
Update to version 2.16.
http://www.f-secure.co.jp/download/
-- Removing SUID bit --
F-Secure Internet Gatekeeper for Linux:
"chmod -s /opt/f-secure/fsigk/cgi/*suid.cgi"
F-Secure Anti-Virus Linux Gateway:
"chmod -s /home/virusgw/cgi/*suid.cgi"
Provided and/or discovered by:
The vendor credits Tigerteam.se Security.
Changelog:
2005-12-07: Added CVE reference.
Original Advisory:
http://www.f-secure.com/security/fsc-2005-3.shtml
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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