| <?xml version="1.0" encoding="utf-8"?> |
| <?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?> |
| <?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?> |
| <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> |
| |
| <glsa id="200402-01"> |
| <title>PHP setting leaks from .htaccess files on virtual hosts</title> |
| <synopsis> |
| If the server configuration "php.ini" file has |
| "register_globals = on" and a request is made to one virtual host |
| (which has "php_admin_flag register_globals off") and the next |
| request is sent to the another virtual host (which does not have the |
| setting) global variables may leak and may be used to exploit the |
| site. |
| </synopsis> |
| <product type="ebuild">PHP</product> |
| <announced>February 07, 2004</announced> |
| <revised>February 07, 2004: 01</revised> |
| <bug>39952</bug> |
| <access>remote</access> |
| <affected> |
| <package name="dev-php/mod_php" auto="yes" arch="*"> |
| <unaffected range="ge">4.3.4-r4</unaffected> |
| <vulnerable range="lt">4.3.4-r4</vulnerable> |
| </package> |
| </affected> |
| <background> |
| <p> |
| PHP is a widely-used general-purpose scripting language that is |
| especially suited for Web development and can be embedded into HTML. |
| </p> |
| </background> |
| <description> |
| <p> |
| If the server configuration "php.ini" file has |
| "register_globals = on" and a request is made to one virtual host |
| (which has "php_admin_flag register_globals off") and the next |
| request is sent to the another virtual host (which does not have the |
| setting) through the same apache child, the setting will persist. |
| </p> |
| </description> |
| <impact type="normal"> |
| <p> |
| Depending on the server and site, an attacker may be able to exploit |
| global variables to gain access to reserved areas, such as MySQL passwords, |
| or this vulnerability may simply cause a lack of functionality. As a |
| result, users are urged to upgrade their PHP installations. |
| </p> |
| <p> |
| Gentoo ships PHP with "register_globals" set to "off" |
| by default. |
| </p> |
| <p> |
| This issue affects both servers running Apache 1.x and servers running |
| Apache 2.x. |
| </p> |
| </impact> |
| <workaround> |
| <p> |
| No immediate workaround is available; a software upgrade is required. |
| </p> |
| </workaround> |
| <resolution> |
| <p> |
| All users are recommended to upgrade their PHP installation to 4.3.4-r4: |
| </p> |
| <code> |
| # emerge sync |
| # emerge -pv ">=dev-php/mod_php-4.3.4-r4" |
| # emerge ">=dev-php/mod_php-4.3.4-r4"</code> |
| </resolution> |
| <references> |
| <uri link="http://bugs.php.net/bug.php?id=25753">Corresponding PHP bug</uri> |
| </references> |
| </glsa> |