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Vulnerability Assessment & Network Security Forums |
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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery. Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200503-02] phpBB: Multiple vulnerabilities Vulnerability Assessment Details
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[GLSA-200503-02] phpBB: Multiple vulnerabilities |
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phpBB: Multiple vulnerabilities Detailed Explanation for this Vulnerability Assessment The remote host is affected by the vulnerability described in GLSA-200503-02 (phpBB: Multiple vulnerabilities) It was discovered that phpBB contains a flaw in the session handling code and a path disclosure bug. AnthraX101 discovered that phpBB permits local users to read arbitrary files, if the "Enable remote avatars" and "Enable avatar uploading" options are set (CVE-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 (CVE-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. References: 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 Solution: All phpBB users should upgrade to the latest available version: # emerge --sync # emerge --ask --oneshot --verbose ">=www-apps/phpBB-2.0.13" Network Security Threat Level: Medium Networks Security ID: Vulnerability Assessment Copyright: (C) 2005 Michel Arboi |
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