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Category:   Application (E-mail Server)  >   SquirrelMail Vendors:   SquirrelMail Development Team
(Red Hat Issues Fix) SquirrelMail 'compose.php' Lets Remote Authenticated Users Overwrite Variables
SecurityTracker Alert ID:  1016932
SecurityTracker URL:  http://securitytracker.com/id/1016932
CVE Reference:   CVE-2006-4019   (Links to External Site)
Date:  Sep 26 2006
Impact:   Disclosure of user information, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 1.4.8
Description:   A vulnerability was reported in SquirrelMail. A remote authenticated user can overwrite certain variables.

A remote authenticated user can invoke 'compose.php' and specify arbitrary values for arbitrary parameters, regardless of the register_globals setting. This may allow the user to read or overwrite a target user's preference file or attachments.

The vendor credits James Bercegay of GulfTech Security Research with discovering this vulnerability.

Impact:   A remote authenticated user may be able to read or overwrite a target user's preference file or attachments.
Solution:   Red Hat has released a fix.

Red Hat Enterprise Linux AS version 3:

SRPMS:
ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/squirrelmail-1.4.8-2.el3.src.rpm
ab9d7fa0864948074a24fbb0fac716e5 squirrelmail-1.4.8-2.el3.src.rpm

noarch:
0f4921da7a788f633aa016f993a9a9b6 squirrelmail-1.4.8-2.el3.noarch.rpm

Red Hat Desktop version 3:

SRPMS:
ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/squirrelmail-1.4.8-2.el3.src.rpm
ab9d7fa0864948074a24fbb0fac716e5 squirrelmail-1.4.8-2.el3.src.rpm

noarch:
0f4921da7a788f633aa016f993a9a9b6 squirrelmail-1.4.8-2.el3.noarch.rpm

Red Hat Enterprise Linux ES version 3:

SRPMS:
ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/squirrelmail-1.4.8-2.el3.src.rpm
ab9d7fa0864948074a24fbb0fac716e5 squirrelmail-1.4.8-2.el3.src.rpm

noarch:
0f4921da7a788f633aa016f993a9a9b6 squirrelmail-1.4.8-2.el3.noarch.rpm

Red Hat Enterprise Linux WS version 3:

SRPMS:
ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/squirrelmail-1.4.8-2.el3.src.rpm
ab9d7fa0864948074a24fbb0fac716e5 squirrelmail-1.4.8-2.el3.src.rpm

noarch:
0f4921da7a788f633aa016f993a9a9b6 squirrelmail-1.4.8-2.el3.noarch.rpm

Red Hat Enterprise Linux AS version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/squirrelmail-1.4.8-2.el4.src.rpm
de02b249ec7954627c88123fbdf77e7b squirrelmail-1.4.8-2.el4.src.rpm

noarch:
5a86f850038d3a2df211c29af5c9070c squirrelmail-1.4.8-2.el4.noarch.rpm

Red Hat Enterprise Linux Desktop version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/squirrelmail-1.4.8-2.el4.src.rpm
de02b249ec7954627c88123fbdf77e7b squirrelmail-1.4.8-2.el4.src.rpm

noarch:
5a86f850038d3a2df211c29af5c9070c squirrelmail-1.4.8-2.el4.noarch.rpm

Red Hat Enterprise Linux ES version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/squirrelmail-1.4.8-2.el4.src.rpm
de02b249ec7954627c88123fbdf77e7b squirrelmail-1.4.8-2.el4.src.rpm

noarch:
5a86f850038d3a2df211c29af5c9070c squirrelmail-1.4.8-2.el4.noarch.rpm

Red Hat Enterprise Linux WS version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/squirrelmail-1.4.8-2.el4.src.rpm
de02b249ec7954627c88123fbdf77e7b squirrelmail-1.4.8-2.el4.src.rpm

noarch:
5a86f850038d3a2df211c29af5c9070c squirrelmail-1.4.8-2.el4.noarch.rpm

The Red Hat advisory is available at:

https://rhn.redhat.com/errata/RHSA-2006-0668.html

Vendor URL:  www.squirrelmail.org/security/issue/2006-08-11 (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  3, 4

Message History:   This archive entry is a follow-up to the message listed below.
Aug 12 2006 SquirrelMail 'compose.php' Lets Remote Authenticated Users Overwrite Variables



 Source Message Contents

Subject:  [RHSA-2006:0668-01] Moderate: squirrelmail security update


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- ---------------------------------------------------------------------
                   Red Hat Security Advisory

Synopsis:          Moderate: squirrelmail security update
Advisory ID:       RHSA-2006:0668-01
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2006-0668.html
Issue date:        2006-09-26
Updated on:        2006-09-26
Product:           Red Hat Enterprise Linux
CVE Names:         CVE-2006-4019 
- ---------------------------------------------------------------------

1. Summary:

A new squirrelmail package that fixes a security issue as well as several
bugs is now available for Red Hat Enterprise Linux 3 and 4.

This update has been rated as having moderate security impact by the Red
Hat Security Response Team.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS version 3 - noarch
Red Hat Desktop version 3 - noarch
Red Hat Enterprise Linux ES version 3 - noarch
Red Hat Enterprise Linux WS version 3 - noarch
Red Hat Enterprise Linux AS version 4 - noarch
Red Hat Enterprise Linux Desktop version 4 - noarch
Red Hat Enterprise Linux ES version 4 - noarch
Red Hat Enterprise Linux WS version 4 - noarch

3. Problem description:

SquirrelMail is a standards-based webmail package written in PHP.

A dynamic variable evaluation flaw was found in SquirrelMail.  Users who
have an account on a SquirrelMail server and are logged in could use this
flaw to overwrite variables which may allow them to read or write other
users' preferences or attachments.  (CVE-2006-4019)

Users of SquirrelMail should upgrade to this erratum package, which
contains SquirrelMail 1.4.8 to correct this issue.  This package also
contains a number of additional patches to correct various bugs.

Note: After installing this update, users are advised to restart their httpd
service to ensure that the new version functions correctly.

4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

This update is available via Red Hat Network.  To use Red Hat Network,
launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

5. Bug IDs fixed (http://bugzilla.redhat.com/):

192236 - [Squirrelmail] sqspell_config.php not listed as a config file
194457 - squirrelmail cannot handle handle multibyte characters in attachment.
194598 - "Message Highlighting" help not translated in ja_JP
194599 - ja_JP help pages are garbled
195452 - squirrelmail view_text.php cannot handle handle multibyte characters in attachment.
195639 - Squirrelmail file download issue on JP MS Windows XP.
196017 - squirrelmail cannot convert Subject to zen-kaku kata-kana.
196117 - Wrong ja_JP translation for "refresh folder list"
202195 - CVE-2006-4019 Squirrelmail authenticated user variable overwriting

6. RPMs required:

Red Hat Enterprise Linux AS version 3:

SRPMS:
ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/squirrelmail-1.4.8-2.el3.src.rpm
ab9d7fa0864948074a24fbb0fac716e5  squirrelmail-1.4.8-2.el3.src.rpm

noarch:
0f4921da7a788f633aa016f993a9a9b6  squirrelmail-1.4.8-2.el3.noarch.rpm

Red Hat Desktop version 3:

SRPMS:
ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/squirrelmail-1.4.8-2.el3.src.rpm
ab9d7fa0864948074a24fbb0fac716e5  squirrelmail-1.4.8-2.el3.src.rpm

noarch:
0f4921da7a788f633aa016f993a9a9b6  squirrelmail-1.4.8-2.el3.noarch.rpm

Red Hat Enterprise Linux ES version 3:

SRPMS:
ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/squirrelmail-1.4.8-2.el3.src.rpm
ab9d7fa0864948074a24fbb0fac716e5  squirrelmail-1.4.8-2.el3.src.rpm

noarch:
0f4921da7a788f633aa016f993a9a9b6  squirrelmail-1.4.8-2.el3.noarch.rpm

Red Hat Enterprise Linux WS version 3:

SRPMS:
ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/squirrelmail-1.4.8-2.el3.src.rpm
ab9d7fa0864948074a24fbb0fac716e5  squirrelmail-1.4.8-2.el3.src.rpm

noarch:
0f4921da7a788f633aa016f993a9a9b6  squirrelmail-1.4.8-2.el3.noarch.rpm

Red Hat Enterprise Linux AS version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/squirrelmail-1.4.8-2.el4.src.rpm
de02b249ec7954627c88123fbdf77e7b  squirrelmail-1.4.8-2.el4.src.rpm

noarch:
5a86f850038d3a2df211c29af5c9070c  squirrelmail-1.4.8-2.el4.noarch.rpm

Red Hat Enterprise Linux Desktop version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/squirrelmail-1.4.8-2.el4.src.rpm
de02b249ec7954627c88123fbdf77e7b  squirrelmail-1.4.8-2.el4.src.rpm

noarch:
5a86f850038d3a2df211c29af5c9070c  squirrelmail-1.4.8-2.el4.noarch.rpm

Red Hat Enterprise Linux ES version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/squirrelmail-1.4.8-2.el4.src.rpm
de02b249ec7954627c88123fbdf77e7b  squirrelmail-1.4.8-2.el4.src.rpm

noarch:
5a86f850038d3a2df211c29af5c9070c  squirrelmail-1.4.8-2.el4.noarch.rpm

Red Hat Enterprise Linux WS version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/squirrelmail-1.4.8-2.el4.src.rpm
de02b249ec7954627c88123fbdf77e7b  squirrelmail-1.4.8-2.el4.src.rpm

noarch:
5a86f850038d3a2df211c29af5c9070c  squirrelmail-1.4.8-2.el4.noarch.rpm

These packages are GPG signed by Red Hat for security.  Our key and 
details on how to verify the signature are available from
https://www.redhat.com/security/team/key/#package

7. References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4019
http://www.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at https://www.redhat.com/security/team/contact/

Copyright 2006 Red Hat, Inc.
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