drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Zwei Probleme in phpbb
Name: |
Zwei Probleme in phpbb
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ID: |
200503-02 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Mi, 2. März 2005, 12:00 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0258
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0259
http://www.phpbb.com/phpBB/viewtopic.php?f=14&t=267563 |
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Applikationen: |
phpBB |
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Originalnachricht |
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Severity: Normal Title: phpBB: Multiple vulnerabilities Date: March 01, 2005 Bugs: #82955 ID: 200503-02
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Synopsis ========
Several vulnerabilities allow remote attackers to gain phpBB administrator rights or expose and manipulate sensitive data.
Background ==========
phpBB is an Open Source bulletin board package.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 www-apps/phpBB < 2.0.13 >= 2.0.13
Description ===========
It was discovered that phpBB contains a flaw in the session handling code and a path disclosure bug. AnthraX101 discovered that phpBB allows local users to read arbitrary files, if the "Enable remote avatars" and "Enable avatar uploading" options are set (CAN-2005-0259). He also found out that incorrect input validation in "usercp_avatar.php" and "usercp_register.php" makes phpBB vulnerable to directory traversal attacks, if the "Gallery avatars" setting is enabled (CAN-2005-0258).
Impact ======
Remote attackers can exploit the session handling flaw to gain phpBB administrator rights. By providing a local and a remote location for an avatar and setting the "Upload Avatar from a URL:" field to point to the target file, a malicious local user can read arbitrary local files. By inserting "/../" sequences into the "avatarselect" parameter, a remote attacker can exploit the directory traversal vulnerability to delete arbitrary files. A flaw in the "viewtopic.php" script can be exploited to expose the full path of PHP scripts.
Workaround ==========
There is no known workaround at this time.
Resolution ==========
All phpBB users should upgrade to the latest available version:
# emerge --sync # emerge --ask --oneshot --verbose ">=www-apps/phpBB-2.0.13"
References ==========
[ 1 ] CAN-2005-0258 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0258 [ 2 ] CAN-2005-0259 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0259 [ 3 ] phpBB announcement http://www.phpbb.com/phpBB/viewtopic.php?f=14&t=267563
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200503-02.xml
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 security@gentoo.org or alternatively, you may file a bug at http://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.
http://creativecommons.org/licenses/by-sa/2.0
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