TITLE:
Xerver Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA17243

VERIFY ADVISORY:
http://secunia.com/advisories/17243/

CRITICAL:
Moderately critical

IMPACT:
Cross Site Scripting, Exposure of system information, Exposure of
sensitive information

WHERE:
>From remote

SOFTWARE:
Xerver 4.x
http://secunia.com/product/5944/

DESCRIPTION:
Ziv Kamir has reported some vulnerabilities in Xerver, which can be
exploited by malicious people to conduct cross-site scripting
attacks, and disclose system and sensitive information.

1) The problem is that it is possible to disclose the source code of
script files by appending a dot to the filename in a HTTP request.

Example:
http://[host]/script.pl.

2) The problem is that the content of a directory can be disclosed
even when there is an index file by appending a null character to the
path in a HTTP request.

Example:
http://[host]/%00/

This can further be exploited to execute arbitrary HTML and script
code in a user's browser session in context of an affected site via a
specially crafted path.

Example:
http://[host]/%00/[code]

The vulnerabilities have been reported in version 4.17. Other
versions may also be affected.

SOLUTION:
Update to version 4.20.
http://www.javascript.nu/xerver/

PROVIDED AND/OR DISCOVERED BY:
Ziv Kamir, Global Security Solution IT

----------------------------------------------------------------------

About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

----------------------------------------------------------------------

Unsubscribe: Secunia Security Advisories
http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org

----------------------------------------------------------------------