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AWStats "configdir" Arbitrary Configuration File Loading
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Secunia Advisory:
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SA20164
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Release Date:
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2006-05-26
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Last Update:
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2006-06-07
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Popularity:
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8,452 views
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Critical:
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Less critical
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Impact:
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Security Bypass
System access
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Where:
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From remote
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Solution Status:
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Unpatched
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| Software: | AWStats 6.x
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| CVE reference: | CVE-2006-2644
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Description:
Hendrik Weimer has discovered a security issue in AWStats, which can be exploited by malicious people to bypass certain security restrictions.
Input passed to the "configdir" parameter in awstats.pl isn't properly verified, before it is used to load configuration files. This can be exploited to load a configuration file with an arbitrary filename from an arbitrary directory by setting the "configdir" and "config" parameters.
This can further be exploited to inject and execute arbitrary shell commands via the "LogFile" configuration directive and the "|" pipe character.
The loading of an arbitrary configuration file in itself is not a vulnerability and should not pose any direct risk to the system. However, combined with other third-party applications, which allow files to be uploaded to the system by untrusted users, this can be exploited to compromise a vulnerable system.
The problem has been confirmed in version 6.5. Other versions may also be affected.
Solution:
Do not allow untrusted users to upload files to affected systems.
Provided and/or discovered by:
Hendrik Weimer
Changelog:
2006-06-07: Added CVE reference.
Original Advisory:
http://www.debian.org/security/2006/dsa-1075
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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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