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Category:   Application (E-mail Server)  >   Mailman Vendors:   [Multiple Authors/Vendors]
(Red Hat Issues Fix for Secure Web Server Package) Re: GNU Mailman E-mail Archive Server Enables Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1003089
SecurityTracker URL:  http://securitytracker.com/id/1003089
CVE Reference:   CVE-2001-0884   (Links to External Site)
Date:  Jan 2 2002
Impact:   Execution of arbitrary code via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 2.0.8
Description:   Cgisecurity.com reported a cross-site scripting vulnerability in the GNU Mailman e-mail archiver.

A remote user can cause arbitrary javascript to be executed on a user's browser such that the javascript appears to the target user's browser to originate from the site running the mailman archiver.

The following demonstration exploit URL will trigger the vulnerability and display a pop-up javascript box:

http://host/mailman/listinfo/<img%20src=javascript:alert(document.domain)>

Impact:   A remote user can use the Mailman archiver to conduct a cross-site scripting attack. The remote user can create a web page or HTML-based e-mail message to execute javascript on the recipients browser such that the javascript appears to originate from the site running the Mainman archiver.
Solution:   Red Hat has issued a fix for Red Hat Secure Web Server 3.2:

i386:
ftp://updates.redhat.com/other_prod/secureweb/3.2/i386/mailman-2.0.8-0.6.2.i386.rpm

The verification checksums are:

MD5 sum Package Name
--------------------------------------------------------------------------
e74be80586d59cff98f21b143e78cc48 other_prod/secureweb/3.2/SRPMS/mailman-2.0.8-0.6.2.src.rpm
c0b1a635356bb4c05218a4b49099bd1b other_prod/secureweb/3.2/i386/mailman-2.0.8-0.6.2.i386.rpm

Vendor URL:  sourceforge.net/projects/mailman (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   This archive entry is a follow-up to the message listed below.
Nov 28 2001 GNU Mailman E-mail Archive Server Enables Cross-Site Scripting Attacks



 Source Message Contents

Subject:  [RHSA-2001:170-06] Updated Mailman packages available


---------------------------------------------------------------------
                   Red Hat, Inc. Red Hat Security Advisory

Synopsis:          Updated Mailman packages available
Advisory ID:       RHSA-2001:170-06
Issue date:        2001-12-11
Updated on:        2002-01-02
Product:           Red Hat Secure Web Server
Keywords:          cross-site scripting
Cross references:  RHSA-2001:168 RHSA-2001:169
Obsoletes:         
---------------------------------------------------------------------

1. Topic:

Updated Mailman packages are now available for Red Hat Secure Web Server
3.2 (U.S.).  These updates fix cross-site scripting bugs which might allow
another server to be used to gain a user's private information from a
server running Mailman.

2. Relevant releases/architectures:

Red Hat Secure Web Server 3.2 - i386

3. Problem description:

A server running Mailmain versions prior to 2.0.8 will send certain
user-modifiable data to clients without escaping embedded tags.  This data
may contain scripts which will then be executed by an unwary client,
possibly transmitting private information to a third party.

The Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the name CAN-2001-0884 to this issue.

4. Solution:

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

To update all RPMs for your particular architecture, run:

rpm -Fvh [filenames]

where [filenames] is a list of the RPMs you wish to upgrade.  Only those
RPMs which are currently installed will be updated.  Those RPMs which are
not installed but included in the list will not be updated.  Note that you
can also use wildcards (*.rpm) if your current directory *only* contains the
desired RPMs.

Please note that this update is also available via Red Hat Network.  Many
people find this an easier way to apply updates.  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/bugzilla for more info):



6. RPMs required:

Red Hat Secure Web Server 3.2:

i386:
ftp://updates.redhat.com/other_prod/secureweb/3.2/i386/mailman-2.0.8-0.6.2.i386.rpm



7. Verification:

MD5 sum                          Package Name
--------------------------------------------------------------------------
e74be80586d59cff98f21b143e78cc48 other_prod/secureweb/3.2/SRPMS/mailman-2.0.8-0.6.2.src.rpm
c0b1a635356bb4c05218a4b49099bd1b other_prod/secureweb/3.2/i386/mailman-2.0.8-0.6.2.i386.rpm
 

These packages are GPG signed by Red Hat, Inc. for security.  Our key
is available at:
    http://www.redhat.com/about/contact/pgpkey.html

You can verify each package with the following command:
    rpm --checksig  <filename>

If you only wish to verify that each package has not been corrupted or
tampered with, examine only the md5sum with the following command:
    rpm --checksig --nogpg <filename>

8. References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2001-0884
http://mail.python.org/pipermail/mailman-announce/2001-November/000031.html
http://www.cert.org/advisories/CA-2000-02.html
http://www.cgisecurity.org/advisory/7.txt


Copyright(c) 2000, 2001 Red Hat, Inc.

 
 


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