[Full-Disclosure] [RHSA-2003:042-07] Updated squirrelmail packages close cross-site scripting vulnerabilities

From: bugzilla@redhat.com
Date: 03/05/03

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    From: bugzilla@redhat.com
    To: redhat-watch-list@redhat.com, redhat-announce-list@redhat.com
    Date: Wed, 5 Mar 2003 03:45 -0500

                       Red Hat, Inc. Red Hat Security Advisory

    Synopsis: Updated squirrelmail packages close cross-site scripting vulnerabilities
    Advisory ID: RHSA-2003:042-07
    Issue date: 2003-02-07
    Updated on: 2003-03-04
    Product: Red Hat Linux
    Keywords: squirrelmail cross-site scripting
    Cross references:
    CVE Names: CAN-2002-1276 CAN-2002-1341

    1. Topic:

    Updated squirrelmail packages are now available for Red Hat Linux.

    2. Relevant releases/architectures:

    Red Hat Linux 8.0 - noarch

    3. Problem description:

    SquirrelMail is a webmail package written in PHP. Two vulnerabilities
    have been found that affect versions of SquirrelMail shipped with Red Hat
    Linux 8.0.

    A cross-site scripting (XSS) vulnerability in Squirrelmail version 1.2.10
    and earlier allows remote attackers to execute script as other web users
    via read_body.php. The Common Vulnerabilities and Exposures project
    (cve.mitre.org) has assigned the name CAN-2002-1341 to this issue.

    An incomplete fix for a cross-site scripting vulnerability in SquirrelMail
    1.2.8 calls the strip_tags function on the PHP_SELF value but does not save
    the result back to that variable, leaving it open to cross-site scripting
    attacks. (CAN-2002-1276)

    All users of Squirrelmail are advised to upgrade to these packages
    based on SquirrelMail version 1.2.10 which contain a backported patch to
    fix these issues.

    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:


    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):

    78982 - SquirrelMail 1.2.8 vulnerable to XSS attacks
    79147 - SquirrelMail 1.2.8 vulnerable to XSS attacks

    6. RPMs required:

    Red Hat Linux 8.0:



    7. Verification:

    MD5 sum Package Name
    ab53bd8537f3263e0410e5c0324e5f40 8.0/en/os/SRPMS/squirrelmail-1.2.10-1.src.rpm
    9f9bdb1263306d8ffffef6c030c8fe29 8.0/en/os/noarch/squirrelmail-1.2.10-1.noarch.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 -v <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:
        md5sum <filename>

    8. References:


    9. Contact:

    The Red Hat security contact is <security@redhat.com>. More contact
    details at http://www.redhat.com/solutions/security/news/contact.html

    Copyright 2003 Red Hat, Inc.

    Full-Disclosure - We believe in it.
    Charter: http://lists.netsys.com/full-disclosure-charter.html

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