Webmin and Usermin fail to sanitize user input

Overview

Webmin and Usermin do not properly sanitize user input. This vulnerability may allow a remote, unauthenticated user to view any file on the system running Webmin or Usermin.

Description

Webmin

Webmin is popular web-based administration tool for Unix and Linux servers that allows system administrators to make changes to system processes.

Usermin

Usermin offers an interface similar to Webmin, but is designed for regular users who are not responsible for system administration tasks.

The Problem

There is an input validation vulnerability in Usermin and Webmin that could allow a remote, unauthenticated attacker could view any file on the computer running Webmin or Usermin.

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Impact

An attacker could read any file on the computer running Webmin or Usermin.

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Solution

Upgrade
Usermin version Version 1.220 and Webmin version 1.290 have been released to address this vulnerability.

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Restrict Access

Restrict access to the Webmin and Usermin servers to trusted hosts. Note that in addition to firewall and VPN access control methods, both Webmin and usermin can use SSH tunneling to provide additional layers of encryption and authorization.

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Vendor Information

999601

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Webmin __ Unknown

Updated: July 07, 2006

Status

Unknown

Vendor Statement

Vendor Information

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

Addendum

This vulnerability was reported by the Webmin team.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23999601 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

• <http://secunia.com/advisories/20892/&gt;
• <http://www.webmin.com/uchanges-1.210.html&gt;
• http://club.mandriva.com/xwiki/bin/KB/SecureSssh5?xpage=code&

Acknowledgements

The Webmin team has reported this vulnerability.

This document was written by Ryan Giobbi.

Other Information

CVE IDs:	CVE-2006-3392
Severity Metric:	9.53 Date Public: