| <?xml version="1.0" encoding="utf-8"?> |
| <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> |
| |
| <glsa id="200705-17"> |
| <title>Apache mod_security: Rule bypass</title> |
| <synopsis> |
| A vulnerability has been discovered in mod_security, allowing a remote |
| attacker to bypass rules. |
| </synopsis> |
| <product type="ebuild">mod_security</product> |
| <announced>May 17, 2007</announced> |
| <revised>December 30, 2007: 02</revised> |
| <bug>169778</bug> |
| <access>remote</access> |
| <affected> |
| <package name="www-apache/mod_security" auto="yes" arch="*"> |
| <unaffected range="ge">2.1.1</unaffected> |
| <vulnerable range="lt">2.1.1</vulnerable> |
| </package> |
| </affected> |
| <background> |
| <p> |
| mod_security is an Apache module designed for enhancing the security of |
| the Apache web server. |
| </p> |
| </background> |
| <description> |
| <p> |
| Stefan Esser discovered that mod_security processes NULL characters as |
| terminators in POST requests using the |
| application/x-www-form-urlencoded encoding type, while other parsers |
| used in web applications do not. |
| </p> |
| </description> |
| <impact type="low"> |
| <p> |
| A remote attacker could send a specially crafted POST request, possibly |
| bypassing the module ruleset and leading to the execution of arbitrary |
| code in the scope of the web server with the rights of the user running |
| the web server. |
| </p> |
| </impact> |
| <workaround> |
| <p> |
| There is no known workaround at this time. |
| </p> |
| </workaround> |
| <resolution> |
| <p> |
| All mod_security users should upgrade to the latest version: |
| </p> |
| <code> |
| # emerge --sync |
| # emerge --ask --oneshot --verbose ">=www-apache/mod_security-2.1.1"</code> |
| </resolution> |
| <references> |
| <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1359">CVE-2007-1359</uri> |
| </references> |
| <metadata tag="requester" timestamp="Fri, 11 May 2007 23:14:33 +0000"> |
| shellsage |
| </metadata> |
| <metadata tag="bugReady" timestamp="Sun, 13 May 2007 04:49:45 +0000"> |
| shellsage |
| </metadata> |
| <metadata tag="submitter" timestamp="Sun, 13 May 2007 13:46:57 +0000"> |
| p-y |
| </metadata> |
| </glsa> |