Webmin, Usermin: Cross-site scripting vulnerabilities

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200707-05 / webmin/usermin
Release Date	July 05, 2007
Latest Revision	July 05, 2007: 01
Impact	low
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
app-admin/webmin	< 1.350	>= 1.350	All supported architectures
app-admin/usermin	< 1.280	>= 1.280	All supported architectures

Related bugreports: #181385

Synopsis

Webmin and Usermin are vulnerable to cross-site scripting vulnerabilities (XSS).

2. Impact Information

Background

Webmin is a web-based administrative interface for Unix-like systems. Usermin is a simplified version of Webmin designed for use by normal users rather than system administrators.

Description

The pam_login.cgi file does not properly sanitize user input before sending it back as output to the user.

Impact

An unauthenticated attacker could entice a user to browse a specially crafted URL, allowing for the execution of script code in the context of the user's browser and for the theft of browser credentials. This may permit the attacker to login to Webmin or Usermin with the user's permissions.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All Webmin users should update to the latest stable version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --verbose --oneshot ">=app-admin/webmin-1.350"

All Usermin users should update to the latest stable version:

Code Listing 3.2: Resolution

# emerge --sync
# emerge --ask --verbose --oneshot ">=app-admin/usermin-1.280"

4. References

CVE-2007-3156

Updated July 05, 2007

Summary: This is a Gentoo Linux Security Advisory

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