go-pear.php PEAR PHP proxy redirection

gopear-proxy-redirection (24076) The risk level is classified as MediumMedium Risk

Description:

The go-pear.php script, when located inside the Web root directory, could allow a remote attacker to execute arbitrary code on the server. An attacker could exploit this vulnerability by supplying a malicious proxy server to the go-pear.php script, which would redirect the server to an attacker-controlled server from which to install PEAR packages.

Note: The go-pear.php script is installed by default with the Apache2Triad package.

*CVSS:

Base Score: 7
  Access Vector: Remote
  Access Complexity: Low
  Authentication: Not Required
  Confidentiality Impact: Partial
  Integrity Impact: Partial
  Availability Impact: Partial
 
Temporal Score: 5.2
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Upgrade to the latest version of Apache2Triad (1.4.4 or later), available from the Apache2Triad Web site. See References.

References:

  • Apache2Triad Web site: Apache2Triad Insecure PEAR Installer Security Issue.
  • BugTraq Mailing List, Sun Jan 08 2006 - 21:42:03 CST: New PEAR / Apache2Triad Exploit.
  • go-pear.org: go-pear.php.
  • BID-16174: PHP PEAR Go-Pear.PHP Arbitrary Remote Code Execution Vulnerability
  • CVE-2006-0144: The proxy server feature in go-pear.php in PHP PEAR 0.2.2, as used in Apache2Triad, allows remote attackers to execute arbitrary PHP code by redirecting go-pear.php to a malicious proxy server that provides a modified version of Tar.php with a malicious extractModify function.
  • OSVDB ID: 22331: PEAR go-pear.php Proxy Setting Manipulation Arbitrary Command Execution
  • SA18390: Apache2Triad Insecure PEAR Installer Security Issue

Platforms Affected:

  • PHP GO-Pear.php 0.2.2
  • Vlad Alexa Mancini Apache2Triad

Reported:

Jan 08, 2006

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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