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Secunia Security Advisory 25008

Secunia Security Advisory 25008
Posted May 2, 2007
Authored by Secunia | Site secunia.com

Secunia Security Advisory - rgod has discovered two vulnerabilities in TCExam, which can be exploited by malicious people to conduct cross-site scripting attacks or to compromise a vulnerable system.

tags | advisory, vulnerability, xss
SHA-256 | ba9c8f028d06813f9eef69aae2bad31d8b317955dd370713d01e0d87e8e9860b

Secunia Security Advisory 25008

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

TITLE:
TCExam PHP Code Execution and Cross-Site Scripting

SECUNIA ADVISORY ID:
SA25008

VERIFY ADVISORY:
http://secunia.com/advisories/25008/

CRITICAL:
Highly critical

IMPACT:
Cross Site Scripting, System access

WHERE:
>From remote

SOFTWARE:
TCExam 4.x
http://secunia.com/product/14107/

DESCRIPTION:
rgod has discovered two vulnerabilities in TCExam, which can be
exploited by malicious people to conduct cross-site scripting attacks
or to compromise a vulnerable system.

1) Input passed in the "SessionUserLang" cookie to
public/code/index.php is not properly sanitised before it is written
to the filename after the last slash. This can be exploited to
execute arbitrary PHP code.

2) Input passed to the "_SERVER[SCRIPT_NAME]" parameter in
public/code/index.php is not properly sanitised before it is returned
to the user. This can be exploited to execute arbitrary HTML and
script code in a user's browser session in context of an affected
site.

The vulnerabilities are confirmed in version 4.0.011. Prior versions
may also be affected.

SOLUTION:
Update to version 4.1.000.

PROVIDED AND/OR DISCOVERED BY:
rgod

ORIGINAL ADVISORY:
http://milw0rm.com/exploits/3816

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

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.

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

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