TITLE:
V-webmail "CONFIG[pear_dir]" File Inclusion Vulnerability

SECUNIA ADVISORY ID:
SA20297

VERIFY ADVISORY:
http://secunia.com/advisories/20297/

CRITICAL:
Moderately critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
V-webmail 1.x
http://secunia.com/product/8122/

DESCRIPTION:
beford has discovered a vulnerability in V-webmail, which can be
exploited by malicious people to compromise a vulnerable system.

Input passed to the "CONFIG[pear_dir]" parameter in
"includes/mailaccess/pop3.php" isn't properly verified, before it is
used to include files. This can be exploited to include arbitrary
files from external and local resources.

Successful exploitation requires that "register_globals" is enabled
and that the "includes" directory is placed accessible inside the web
root (the installation instructions recommends to place the "includes"
directory outside the web root if possible)

NOTE: In version 1.3 then the affected script is reportedly named
"includes/mailaccess/pop3/core.php".

The vulnerability has been confirmed in version 1.6.4, and has also
been reported in versions 1.3 and 1.5.

SOLUTION:
Ensure that only the "htdocs" directory is accessible inside the web
root.

PROVIDED AND/OR DISCOVERED BY:
beford

ORIGINAL ADVISORY:
http://milw0rm.com/exploits/1827

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