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Category:   Application (E-mail Server)  >   Mailman Vendors:   GNU [multiple authors]
(Red Hat Issues Fix) Mailman Input Validation Flaw in Full Name Field Permits Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1025138
SecurityTracker URL:  http://securitytracker.com/id/1025138
CVE Reference:   CVE-2011-0707   (Links to External Site)
Date:  Mar 2 2011
Impact:   Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2.1.14 and prior versions
Description:   A vulnerability was reported in Mailman. A remote user can conduct cross-site scripting attacks.

Several scripts do not properly filter HTML code from user-supplied input in the Full Name field before displaying the input. A remote user can create a specially crafted Full Name value to cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running the Mailman software and will run in the security context of that site. As a result, the code will be able to access the target user's cookies (including authentication cookies), if any, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.

The following confirmation dialogs are affected:

"Confirm unsubscription request" screen
"Confirm change of email address request" screen
"Re-enable mailing list membership" screen

The vulnerability resides in 'Mailman/Cgi/confirm.py'.

Impact:   A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the Mailman software, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.
Solution:   Red Hat has issued a fix.

The Red Hat advisory is available at:

https://rhn.redhat.com/errata/RHSA-2011-0307.html

Vendor URL:  www.list.org/ (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  4, 5

Message History:   This archive entry is a follow-up to the message listed below.
Feb 23 2011 Mailman Input Validation Flaw in Full Name Field Permits Cross-Site Scripting Attacks



 Source Message Contents

Subject:  [RHSA-2011:0307-01] Moderate: mailman security update

-----BEGIN PGP SIGNED MESSAGE-----
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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Moderate: mailman security update
Advisory ID:       RHSA-2011:0307-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2011-0307.html
Issue date:        2011-03-01
CVE Names:         CVE-2008-0564 CVE-2010-3089 CVE-2011-0707 
=====================================================================

1. Summary:

An updated mailman package that fixes multiple security issues is now
available for Red Hat Enterprise Linux 4 and 5.

The Red Hat Security Response Team has rated this update as having moderate
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.

2. Relevant releases/architectures:

RHEL Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux Desktop version 4 - i386, x86_64
Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64

3. Description:

Mailman is a program used to help manage email discussion lists.

Multiple input sanitization flaws were found in the way Mailman displayed
usernames of subscribed users on certain pages. If a user who is subscribed
to a mailing list were able to trick a victim into visiting one of those
pages, they could perform a cross-site scripting (XSS) attack against the
victim. (CVE-2011-0707)

Multiple input sanitization flaws were found in the way Mailman displayed
mailing list information. A mailing list administrator could use this flaw
to conduct a cross-site scripting (XSS) attack against victims viewing a
list's "listinfo" page. (CVE-2008-0564, CVE-2010-3089)

Red Hat would like to thank Mark Sapiro for reporting the CVE-2011-0707 and
CVE-2010-3089 issues.

Users of mailman should upgrade to this updated package, which contains
backported patches to correct these issues.

4. Solution:

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

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/kb/docs/DOC-11259

5. Bugs fixed (http://bugzilla.redhat.com/):

431526 - CVE-2008-0564 mailman: XSS triggerable by list administrator
631881 - CVE-2010-3089 mailman: Multiple security flaws leading to cross-site scripting (XSS) attacks
677375 - CVE-2011-0707 Mailman: Three XSS flaws due improper escaping of the full name of the member

6. Package List:

Red Hat Enterprise Linux AS version 4:

Source:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/mailman-2.1.5.1-34.rhel4.7.src.rpm

i386:
mailman-2.1.5.1-34.rhel4.7.i386.rpm
mailman-debuginfo-2.1.5.1-34.rhel4.7.i386.rpm

ia64:
mailman-2.1.5.1-34.rhel4.7.ia64.rpm
mailman-debuginfo-2.1.5.1-34.rhel4.7.ia64.rpm

ppc:
mailman-2.1.5.1-34.rhel4.7.ppc.rpm
mailman-debuginfo-2.1.5.1-34.rhel4.7.ppc.rpm

s390:
mailman-2.1.5.1-34.rhel4.7.s390.rpm
mailman-debuginfo-2.1.5.1-34.rhel4.7.s390.rpm

s390x:
mailman-2.1.5.1-34.rhel4.7.s390x.rpm
mailman-debuginfo-2.1.5.1-34.rhel4.7.s390x.rpm

x86_64:
mailman-2.1.5.1-34.rhel4.7.x86_64.rpm
mailman-debuginfo-2.1.5.1-34.rhel4.7.x86_64.rpm

Red Hat Enterprise Linux Desktop version 4:

Source:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/mailman-2.1.5.1-34.rhel4.7.src.rpm

i386:
mailman-2.1.5.1-34.rhel4.7.i386.rpm
mailman-debuginfo-2.1.5.1-34.rhel4.7.i386.rpm

x86_64:
mailman-2.1.5.1-34.rhel4.7.x86_64.rpm
mailman-debuginfo-2.1.5.1-34.rhel4.7.x86_64.rpm

Red Hat Enterprise Linux ES version 4:

Source:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/mailman-2.1.5.1-34.rhel4.7.src.rpm

i386:
mailman-2.1.5.1-34.rhel4.7.i386.rpm
mailman-debuginfo-2.1.5.1-34.rhel4.7.i386.rpm

ia64:
mailman-2.1.5.1-34.rhel4.7.ia64.rpm
mailman-debuginfo-2.1.5.1-34.rhel4.7.ia64.rpm

x86_64:
mailman-2.1.5.1-34.rhel4.7.x86_64.rpm
mailman-debuginfo-2.1.5.1-34.rhel4.7.x86_64.rpm

Red Hat Enterprise Linux WS version 4:

Source:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/mailman-2.1.5.1-34.rhel4.7.src.rpm

i386:
mailman-2.1.5.1-34.rhel4.7.i386.rpm
mailman-debuginfo-2.1.5.1-34.rhel4.7.i386.rpm

ia64:
mailman-2.1.5.1-34.rhel4.7.ia64.rpm
mailman-debuginfo-2.1.5.1-34.rhel4.7.ia64.rpm

x86_64:
mailman-2.1.5.1-34.rhel4.7.x86_64.rpm
mailman-debuginfo-2.1.5.1-34.rhel4.7.x86_64.rpm

RHEL Desktop Workstation (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/mailman-2.1.9-6.el5_6.1.src.rpm

i386:
mailman-2.1.9-6.el5_6.1.i386.rpm
mailman-debuginfo-2.1.9-6.el5_6.1.i386.rpm

x86_64:
mailman-2.1.9-6.el5_6.1.x86_64.rpm
mailman-debuginfo-2.1.9-6.el5_6.1.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/mailman-2.1.9-6.el5_6.1.src.rpm

i386:
mailman-2.1.9-6.el5_6.1.i386.rpm
mailman-debuginfo-2.1.9-6.el5_6.1.i386.rpm

ia64:
mailman-2.1.9-6.el5_6.1.ia64.rpm
mailman-debuginfo-2.1.9-6.el5_6.1.ia64.rpm

ppc:
mailman-2.1.9-6.el5_6.1.ppc.rpm
mailman-debuginfo-2.1.9-6.el5_6.1.ppc.rpm

s390x:
mailman-2.1.9-6.el5_6.1.s390x.rpm
mailman-debuginfo-2.1.9-6.el5_6.1.s390x.rpm

x86_64:
mailman-2.1.9-6.el5_6.1.x86_64.rpm
mailman-debuginfo-2.1.9-6.el5_6.1.x86_64.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://access.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2008-0564.html
https://www.redhat.com/security/data/cve/CVE-2010-3089.html
https://www.redhat.com/security/data/cve/CVE-2011-0707.html
https://access.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 2011 Red Hat, Inc.
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