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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 >> Red Hat Local Security Checks >> RHSA-2002-214: php Vulnerability Assessment Details
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RHSA-2002-214: php |
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Check for the version of the php packages Detailed Explanation for this Vulnerability Assessment PHP versions up to and including 4.2.2 contain vulnerabilities in the mail () function, permiting local script authors to bypass safe mode restrictions and possibly permiting remote attackers to insert arbitrary mail headers or content. [Updated 13 Jan 2003] Added fixed packages for the Itanium (IA64) architecture. [Updated 06 Feb 2003] Added fixed packages for Advanced Workstation 2.1 PHP is an HTML-embedded scripting language commonly used with the Apache HTTP server. The mail function in PHP 4.x to 4.2.2 may permit local script authors to bypass safe mode restrictions and modify command line arguments to the MTA (such as sendmail) in the 5th argument to mail(), altering MTA behavior and possibly executing arbitrary local commands. The mail function in PHP 4.x to 4.2.2 does not filter ASCII control characters from its arguments, which could permit remote attackers to modify mail message content, including mail headers, and possibly use PHP as a "spam proxy." Script authors should note that all input data should be checked for unsafe data by any PHP scripts which call functions such as mail(). Note that this PHP errata, as did RHSA-2002:129, enforces memory limits on the size of the PHP process to prevent a badly generated script from becoming a possible source for a denial of service attack. The default process size is 8Mb, though you can adjust this as you deem necessary through the php.ini directive memory_limit. For example, to change the process memory limit to 4MB, add the following: memory_limit 4194304 Important Note: There are special instructions you should follow regarding your /etc/php.ini configuration file in the "Solution" section below. Solution : http://rhn.redhat.com/errata/RHSA-2002-214.html Network Security Threat Level: High Networks Security ID: Vulnerability Assessment Copyright: This script is Copyright (C) 2004 Tenable Network Security |
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