__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN phpBB Vulnerabilities [Debian Security Advisory DSA-1488-1] February 11, 2008 19:00 GMT Number S-166 ______________________________________________________________________________ PROBLEM: Several remote vulnerabilities have been discovered in phpBB, a web based bulletin board. PLATFORM: Debian GNU/Linux 3.1 (sarge) and 4.0 (etch) DAMAGE: An attacker can perform various actions on behalf of a logged in user. SOLUTION: Upgrade to the appropriate version. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. Cross site request forgery enabled an ASSESSMENT: attacker to perform various actions on behalf of a logged in user. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/s-166.shtml ORIGINAL BULLETIN: http://www.debian.org/security/2008/dsa-1488 CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2006-4758 CVE-2006-6508 CVE-2006-6839 CVE-2006-6840 CVE-2006-6841 CVE-2008-0471 ______________________________________________________________________________ [***** Start Debian Security Advisory DSA-1488-1 *****] Debian Security Advisory DSA-1488-1 phpbb2 -- several vulnerabilities Date Reported: 09 Feb 2008 Affected Packages: phpbb2 Vulnerable: Yes Security database references: In the Debian bugtracking system: Bug 388120, Bug 405980, Bug 463589. In Mitre's CVE dictionary: CVE-2006-4758, CVE-2006-6839, CVE-2006-6840, CVE-2006-6508, CVE-2006-6841, CVE-2008-0471. More information: Several remote vulnerabilities have been discovered in phpBB, a web based bulletin board. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2008-0471 Private messaging allowed cross site request forgery, making it possible to delete all private messages of a user by sending them to a crafted web page. CVE-2006-6841 / CVE-2006-6508 Cross site request forgery enabled an attacker to perform various actions on behalf of a logged in user. (Applies to sarge only.) CVE-2006-6840 A negative start parameter could allow an attacker to create invalid output. (Applies to sarge only.) CVE-2006-6839 Redirection targets were not fully checked, leaving room for unauthorised external redirections via a phpBB forum. (Applies to sarge only.) CVE-2006-4758 An authenticated forum administrator may upload files of any type by using specially crafted filenames. (Applies to sarge only.) For the old stable distribution (sarge), these problems have been fixed in version 2.0.13+1-6sarge4. For the stable distribution (etch), these problems have been fixed in version 2.0.21-7. For the unstable distribution (sid) these problems have been fixed in version 2.0.22-3. We recommend that you upgrade your phpbb2 package. Fixed in: Debian GNU/Linux 3.1 (sarge) Source: http://security.debian.org/pool/updates/main/p/phpbb2/phpbb2_2.0.13+1-6sarge4.diff.gz http://security.debian.org/pool/updates/main/p/phpbb2/phpbb2_2.0.13+1.orig.tar.gz http://security.debian.org/pool/updates/main/p/phpbb2/phpbb2_2.0.13+1-6sarge4.dsc Architecture-independent component: http://security.debian.org/pool/updates/main/p/phpbb2/phpbb2-conf-mysql_2.0.13-6sarge4_all.deb http://security.debian.org/pool/updates/main/p/phpbb2/phpbb2_2.0.13-6sarge4_all.deb http://security.debian.org/pool/updates/main/p/phpbb2/phpbb2-languages_2.0.13-6sarge4_all.deb Debian GNU/Linux 4.0 (etch) Source: http://security.debian.org/pool/updates/main/p/phpbb2/phpbb2_2.0.21-7.dsc http://security.debian.org/pool/updates/main/p/phpbb2/phpbb2_2.0.21.orig.tar.gz http://security.debian.org/pool/updates/main/p/phpbb2/phpbb2_2.0.21-7.diff.gz Architecture-independent component: http://security.debian.org/pool/updates/main/p/phpbb2/phpbb2-languages_2.0.21-7_all.deb http://security.debian.org/pool/updates/main/p/phpbb2/phpbb2_2.0.21-7_all.deb http://security.debian.org/pool/updates/main/p/phpbb2/phpbb2-conf-mysql_2.0.21-7_all.deb MD5 checksums of the listed files are available in the original advisory. [***** End Debian Security Advisory DSA-1488-1 *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Debian for the information contained in this bulletin. _______________________________________________________________________________ CIAC, the Computer Incident Advisory Capability, is the computer security incident response team for the U.S. Department of Energy (DOE) and the emergency backup response team for the National Institutes of Health (NIH). CIAC is located at the Lawrence Livermore National Laboratory in Livermore, California. CIAC is also a founding member of FIRST, the Forum of Incident Response and Security Teams, a global organization established to foster cooperation and coordination among computer security teams worldwide. CIAC services are available to DOE, DOE contractors, and the NIH. CIAC can be contacted at: Voice: +1 925-422-8193 (7x24) FAX: +1 925-423-8002 STU-III: +1 925-423-2604 E-mail: ciac@ciac.org Previous CIAC notices, anti-virus software, and other information are available from the CIAC Computer Security Archive. World Wide Web: http://www.ciac.org/ Anonymous FTP: ftp.ciac.org PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing communities receive CIAC bulletins. If you are not part of these communities, please contact your agency's response team to report incidents. Your agency's team will coordinate with CIAC. The Forum of Incident Response and Security Teams (FIRST) is a world-wide organization. A list of FIRST member organizations and their constituencies can be obtained via WWW at http://www.first.org/. This document was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor the University of California nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation or favoring by the United States Government or the University of California. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or the University of California, and shall not be used for advertising or product endorsement purposes. 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