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[ GLSA 200508-07 ] AWStats: Arbitrary code execution using malicious Referrer information
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GLSA
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Joined: 12 May 2004
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PostPosted: Thu Aug 18, 2005 9:45 am    Post subject: [ GLSA 200508-07 ] AWStats: Arbitrary code execution using m Reply with quote

Gentoo Linux Security Advisory

Title: AWStats: Arbitrary code execution using malicious Referrer information (GLSA 200508-07)
Severity: high
Exploitable: remote
Date: August 16, 2005
Updated: May 28, 2009
Bug(s): #102145
ID: 200508-07

Synopsis


AWStats fails to validate certain log input, which could lead to the
execution of arbitrary Perl code during the generation of the statistics.


Background


AWStats is an advanced log file analyzer and statistics generator.
In HTTP reports it parses Referrer information in order to display the
most common Referrer values that caused users to visit the website.


Affected Packages

Package: www-misc/awstats
Vulnerable: < 6.5
Unaffected: >= 6.5
Architectures: All supported architectures


Description


When using a URLPlugin, AWStats fails to sanitize Referrer URL
data before using them in a Perl eval() routine.


Impact


A remote attacker can include arbitrary Referrer information in a
HTTP request to a web server, therefore injecting tainted data in the
log files. When AWStats is run on this log file, this can result in the
execution of arbitrary Perl code with the rights of the user running
AWStats.


Workaround


Disable all URLPlugins in the AWStats configuration.


Resolution


All AWStats users should upgrade to the latest version:
Code:
# emerge --sync
    # emerge --ask --oneshot --verbose ">=www-misc/awstats-6.5"

Note: Users with the vhosts USE flag set should manually use
webapp-config to finalize the update.


References

CAN-2005-1527
iDEFENSE Advisory


Last edited by GLSA on Fri Jan 04, 2013 4:20 am; edited 6 times in total
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