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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2009.0507 -- [RedHat] squirrelmail: Execute Arbitrary Code 27 May 2009 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Publisher: Red Hat Operating System: Red Hat Linux 3 Red Hat Linux 4 Impact: Execute Arbitrary Code/Commands Increased Privileges Cross-site Scripting Access: Remote/Unauthenticated CVE Names: CVE-2009-1581 CVE-2009-1579 CVE-2009-1578 Ref: ESB-2009.0467 ESB-2009.0483 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2009-1066.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: squirrelmail security update Advisory ID: RHSA-2009:1066-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2009-1066.html Issue date: 2009-05-26 CVE Names: CVE-2009-1578 CVE-2009-1579 CVE-2009-1581 ===================================================================== 1. Summary: An updated squirrelmail package that fixes multiple security issues is now available for Red Hat Enterprise Linux 3, 4, and 5. This update has been rated as having important 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 RHEL Desktop Workstation (v. 5 client) - noarch Red Hat Enterprise Linux (v. 5 server) - noarch 3. Description: SquirrelMail is a standards-based webmail package written in PHP. A server-side code injection flaw was found in the SquirrelMail "map_yp_alias" function. If SquirrelMail was configured to retrieve a user's IMAP server address from a Network Information Service (NIS) server via the "map_yp_alias" function, an unauthenticated, remote attacker using a specially-crafted username could use this flaw to execute arbitrary code with the privileges of the web server. (CVE-2009-1579) Multiple cross-site scripting (XSS) flaws were found in SquirrelMail. An attacker could construct a carefully crafted URL, which once visited by an unsuspecting user, could cause the user's web browser to execute malicious script in the context of the visited SquirrelMail web page. (CVE-2009-1578) It was discovered that SquirrelMail did not properly sanitize Cascading Style Sheets (CSS) directives used in HTML mail. A remote attacker could send a specially-crafted email that could place mail content above SquirrelMail's controls, possibly allowing phishing and cross-site scripting attacks. (CVE-2009-1581) Users of squirrelmail should upgrade to this updated package, which contains backported patches to correct these issues. 4. Solution: Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/docs/DOC-11259 5. Bugs fixed (http://bugzilla.redhat.com/): 500356 - CVE-2009-1581 SquirrelMail: CSS positioning vulnerability 500360 - CVE-2009-1579 SquirrelMail: Server-side code injection in map_yp_alias username map 500363 - CVE-2009-1578 SquirrelMail: Multiple cross site scripting issues 6. Package List: Red Hat Enterprise Linux AS version 3: Source: ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/squirrelmail-1.4.8-13.el3.src.rpm noarch: squirrelmail-1.4.8-13.el3.noarch.rpm Red Hat Desktop version 3: Source: ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/squirrelmail-1.4.8-13.el3.src.rpm noarch: squirrelmail-1.4.8-13.el3.noarch.rpm Red Hat Enterprise Linux ES version 3: Source: ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/squirrelmail-1.4.8-13.el3.src.rpm noarch: squirrelmail-1.4.8-13.el3.noarch.rpm Red Hat Enterprise Linux WS version 3: Source: ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/squirrelmail-1.4.8-13.el3.src.rpm noarch: squirrelmail-1.4.8-13.el3.noarch.rpm Red Hat Enterprise Linux AS version 4: Source: ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/squirrelmail-1.4.8-5.el4_8.5.src.rpm noarch: squirrelmail-1.4.8-5.el4_8.5.noarch.rpm Red Hat Enterprise Linux Desktop version 4: Source: ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/squirrelmail-1.4.8-5.el4_8.5.src.rpm noarch: squirrelmail-1.4.8-5.el4_8.5.noarch.rpm Red Hat Enterprise Linux ES version 4: Source: ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/squirrelmail-1.4.8-5.el4_8.5.src.rpm noarch: squirrelmail-1.4.8-5.el4_8.5.noarch.rpm Red Hat Enterprise Linux WS version 4: Source: ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/squirrelmail-1.4.8-5.el4_8.5.src.rpm noarch: squirrelmail-1.4.8-5.el4_8.5.noarch.rpm RHEL Desktop Workstation (v. 5 client): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/squirrelmail-1.4.8-5.el5_3.7.src.rpm noarch: squirrelmail-1.4.8-5.el5_3.7.noarch.rpm Red Hat Enterprise Linux (v. 5 server): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/squirrelmail-1.4.8-5.el5_3.7.src.rpm noarch: squirrelmail-1.4.8-5.el5_3.7.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-2009-1578 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1579 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1581 http://www.redhat.com/security/updates/classification/#important http://www.squirrelmail.org/security/issue/2009-05-08 http://www.squirrelmail.org/security/issue/2009-05-10 http://www.squirrelmail.org/security/issue/2009-05-12 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://www.redhat.com/security/team/contact/ Copyright 2009 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFKHCiUXlSAg2UNWIIRAs13AKCW4/cE227hqVqDqYSNjIgJCyHFMgCfVVHs TBdwEWI47j2HAcSgP6pmXqo= =NR8O - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iD8DBQFKHHsxNVH5XJJInbgRAjuyAJ9g3+fJVRsorfh6wuPi9Rg0EP2XGQCfb5rR mL/ZQruV+FBeaocs70lXL5M= =OQHy -----END PGP SIGNATURE-----