Squirrelmail: Another XSS vulnerability

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200406-08 / Squirrelmail
Release Date	June 15, 2004
Latest Revision	May 22, 2006: 02
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
mail-client/squirrelmail	<= 1.4.3_rc1-r1	>= 1.4.3	All supported architectures

Related bugreports: #52434

Synopsis

Squirrelmail fails to properly sanitize user input, which could lead to a compromise of webmail accounts.

2. Impact Information

Background

SquirrelMail is a webmail package written in PHP. It supports IMAP and SMTP, and can optionally be installed with SQL support.

Description

A new cross-site scripting (XSS) vulnerability in Squirrelmail-1.4.3_rc1 has been discovered. In functions/mime.php Squirrelmail fails to properly sanitize user input.

Impact

By enticing a user to read a specially crafted e-mail, an attacker can execute arbitrary scripts running in the context of the victim's browser. This could lead to a compromise of the user's webmail account, cookie theft, etc.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All SquirrelMail users should upgrade to the latest stable version:

Code Listing 3.1: Resolution

# emerge sync

# emerge -pv ">=mail-client/squirrelmail-1.4.3"
# emerge ">=mail-client/squirrelmail-1.4.3"

4. References

Page updated June 15, 2004

Summary: This is a Gentoo Linux Security Advisory

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