[ GLSA 200804-19 ] PHP Toolkit: Data disclosure and Denial of Service

[GLSA]

Gentoo Linux Security Advisory

Title: PHP Toolkit: Data disclosure and Denial of Service (GLSA 200804-19)
Severity: normal
Exploitable: local
Date: April 17, 2008
Bug(s): #209535
ID: 200804-19

Synopsis

PHP Toolkit does not quote parameters, allowing for PHP source code disclosure on Apache, and a Denial of Service.

Background

PHP Toolkit is a utility to manage parallel installations of PHP within Gentoo. It is executed by the PHP ebuilds at setup.

Affected Packages

Package: app-admin/php-toolkit
Vulnerable: < 1.0.1
Unaffected: >= 1.0.1
Architectures: All supported architectures


Description

Toni Arnold, David Sveningsson, Michal Bartoszkiewicz, and Joseph reported that php-select does not quote parameters passed to the "tr" command, which could convert the "-D PHP5" argument in the "APACHE2_OPTS" setting in the file /etc/conf.d/apache2 to lower case.

Impact

An attacker could entice a system administrator to run " emerge php " or call " php-select -t apache2 php5 " directly in a directory containing a lower case single-character named file, which would prevent Apache from loading mod_php and thereby disclose PHP source code and cause a Denial of Service.

Workaround

Do not run "emerge" or "php-select" from a working directory which contains a lower case single-character named file.

Resolution

All PHP Toolkit users should upgrade to the latest version: