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Family: Gentoo Local Security Checks --> Category: infos
[GLSA-200405-03] ClamAV VirusEvent parameter vulnerability Vulnerability Scan
Vulnerability Scan Summary
ClamAV VirusEvent parameter vulnerability
Detailed Explanation for this Vulnerability Test
The remote host is affected by the vulnerability described in GLSA-200405-03
(ClamAV VirusEvent parameter vulnerability)
The VirusEvent parameter in the clamav.conf configuration file allows to
specify a system command to run whenever a virus is found. This system
command can make use of the "%f" parameter which is replaced by the name of
the file infected. The name of the file scanned is under control of the
attacker and is not sufficiently checked. Version 0.70 of clamav disables
the use of the "%f" parameter.
Impact
Sending a virus with a malicious file name can result in execution of
arbirary system commands with the rights of the antivirus process. Since
clamav is often associated to mail servers for email scanning, this attack
can be used remotely.
Workaround
You should not use the "%f" parameter in your VirusEvent configuration.
References:
http://www.clamav.net/
Solution:
All users of Clam AntiVirus should upgrade to the latest stable version:
# emerge sync
# emerge -pv ">=net-mail/clamav-0.70"
# emerge ">=net-mail/clamav-0.70"
Threat Level: High
Click HERE for more information and discussions on this network vulnerability scan.
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