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TITLE:
WordPress Command Execution and PHP "eval()" Injection

SECUNIA ADVISORY ID:
SA24374

VERIFY ADVISORY:
http://secunia.com/advisories/24374/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
WordPress 2.x
http://secunia.com/product/6745/

DESCRIPTION:
Ivan Fratric has reported two vulnerabilities in WordPress, which can
be exploited by malicious people to compromise vulnerable systems.

1) Input passed to the "ix" parameter in wp-includes/feed.php is not
properly sanitised before being used in "eval()" calls. This can be
exploited to execute arbitrary PHP code.

2) Input passed to the "iz" parameter in wp-includes/theme.php is not
properly sanitised before being used to execute commands. This can be
exploited to execute arbitrary shell commands.

NOTE: The vulnerabilities were reportedly added by someone breaking
into WordPress's servers.

The vulnerabilities are reported in version 2.1.1 downloaded on
2007-02-25 or later.

SOLUTION:
Update to version 2.1.2.

PROVIDED AND/OR DISCOVERED BY:
Ivan Fratric

ORIGINAL ADVISORY:
Ivan Fratric:
http://ifsec.blogspot.com/2007/03/wordpress-code-compromised-to-enable.html

WordPress:
http://wordpress.org/development/2007/03/upgrade-212/

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