AWStats fails to validate input supplied to pluginmode parameter

Overview

AWStats performs inadequate validation on user-controlled data that is supplied to the pluginmode parameter. Exploitation of this vulnerability may allow a remote attacker to execute arbitrary commands.

Description

AWStats is a Perl CGI script that collects and graphically displays statistics from web, FTP, and mail servers. AWStats provides the ability to extend its functionality via plug-ins. Inadequate validation on input supplied to the pluginmode parameter may allow an attacker to execute PERL commands (i.e. the system() function), which can be used to execute arbitrary operating system or shell commands with the privileges of the web server process.

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Impact

A remote, unauthenticated attacker may be able to execute arbitrary commands or cause a denial-of-service condition.

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Solution

Upgrade

According to public reports, this vulnerability was corrected in AWStats version 6.4. While this version is available to the public, it is still considered under development (beta). Users are encouraged to consult the AWStats Download page for more information.

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Vendor Information

259785

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AWStats __ Affected

Updated: February 25, 2005

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

Please refer to the AWStats Changelog available on the AWStats Web site.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23259785 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

• <http://packetstorm.linuxsecurity.com/0501-exploits/AWStatsVulnAnalysis.pdf&gt;
• <http://secunia.com/advisories/14299/&gt;
• http://marc.theaimsgroup.com/?l=bugtraq&m=110840530924124&w=2
• <http://awstats.sourceforge.net/docs/awstats_changelog.txt&gt;
• <http://awstats.sourceforge.net/&gt;

Acknowledgements

This vulnerability was reported by GHC.

This document was written by Jeff Gennari.

Other Information

CVE IDs:	CVE-2005-0363
Severity Metric:	8.00 Date Public: