GLSA 200609-10: DokuWiki: Arbitrary command execution

http://security.gentoo.org/

Severity:	high
Title:	DokuWiki: Arbitrary command execution
Date:	09/14/2006
Bugs:	#146800
ID:	200609-10

Synopsis

Vulnerabilities in some accessory scripts of DokuWiki allow remote code execution.

Background

DokuWiki is a wiki targeted at developer teams, workgroups and small companies. It does not use a database backend.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
www-apps/dokuwiki	< 20060309d	>= 20060309d	All supported architectures

Description

"rgod" discovered that DokuWiki doesn't sanitize the X-FORWARDED-FOR HTTP header, allowing the injection of arbitrary contents - such as PHP commands - into a file. Additionally, the accessory scripts installed in the "bin" DokuWiki directory are vulnerable to directory traversal attacks, allowing to copy and execute the previously injected code.

Impact

A remote attacker may execute arbitrary PHP (and thus probably system) commands with the permissions of the user running the process serving DokuWiki pages.

Workaround

Disable remote access to the "bin" subdirectory of the DokuWiki installation. Remove the directory if you don't use the scripts in there.

Resolution

All DokuWiki users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-apps/dokuwiki-20060309d"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200609-10.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.