Stay Secure with the Latest Linux Advisories

security advisoryhigh severitygentoo

Gentoo: GLSA-200501-39 High: SquirrelMail Code Execution

SquirrelMail fails to properly sanitize user input, which could lead to arbitrary code execution and compromise webmail accounts.. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200501-39 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: SquirrelMail: Multiple vulnerabilities Date: January 28, 2005 Bugs: #78116 ID: 200501-39 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= SquirrelMail fails to properly sanitize user input, which could lead to arbitrary code execution and compromise webmail accounts. Background ========= SquirrelMail is a webmail package written in PHP. It supports IMAP and SMTP and can optionally be installed with SQL support. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 mail-client/squirrelmail = 1.4.4 Description ========== SquirrelMail fails to properly sanitize certain strings when decoding specially-crafted strings, which can lead to PHP file inclusion and XSS. * Insufficient checking of incoming URLs in prefs.php (CAN-2005-0075) and in webmail.php (CAN-2005-0103). * Insufficient escaping of integers in webmail.php (CAN-2005-0104). Impact ===== By sending a specially-crafted URL, an attacker can execute arbitrary code from the local system with the permissions of the web server. Furthermore by enticing a user to load a specially-crafted URL, it is possible to display arbitrary remote web pages in Squirrelmail's frameset and execute arbitrary scripts running in the context of the victim's browser. This could lead to a compromiseof the user's webmail account, cookie theft, etc. Workaround ========= The arbitrary code execution is only possible with "register_globals" set to "On". Gentoo ships PHP with "register_globals" set to "Off" by default. There are no known workarounds for the other issues at this time. Resolution ========= All SquirrelMail users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "> =mail-client/squirrelmail-1.4.4" Note: Users with the vhosts USE flag set should manually use webapp-config to finalize the update. References ========= [ 1 ] SquirrelMail Advisory [ 2 ] CAN-2005-0075 https://www.cve.org/CVERecord?id=CVE-CAN-2005-0075 [ 3 ] CAN-2005-0103 https://www.cve.org/CVERecord?id=CVE-CAN-2005-0103 [ 4 ] CAN-2005-0104 https://www.cve.org/CVERecord?id=CVE-CAN-2005-0104 Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/200501-39 Concerns? ======== Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to This email address is being protected from spambots. You need JavaScript enabled to view it. or alternatively, you may file a bug at https://bugs.gentoo.org/. License ====== Copyright 2005 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. https://creativecommons.org/licenses/by-sa/2.0/ . Vulnerabilities in SquirrelMail permit arbitrary code execution, risking your webmail credentials. Update immediately to safeguard your accounts.. SquirrelMail, Webmail Threat, Gentoo Security Advisory. . LinuxSecurity.com Team

Jan 28, 2005 Gentoo