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TITLE:
ZABBIX PHP Frontend Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA34091

VERIFY ADVISORY:
http://secunia.com/advisories/34091/

DESCRIPTION:
Some vulnerabilities have been reported in the ZABBIX PHP frontend,
which can be exploited by malicious people to conduct cross-site
request forgery attacks and malicious users to disclose sensitive
information and compromise a vulnerable system.

1) Input appended to and passed via the "extlang" parameter to the
"calc_exp2()" function in include/validate.inc.php is not properly
sanitised before being used. This can be exploited to inject and
execute arbitrary PHP code.

2) The application allows users to perform certain actions via HTTP
requests without performing any validity checks to verify the
requests. This can be exploited to e.g. create users by enticing a
logged in administrator to visit a malicious web page.

3) Input passed to the "srclang" parameter in locales.php (when
"next" is set to a non-NULL value) is not properly verified before
being used to include files. This can be exploited to include
arbitrary files from local resources via directory traversal attacks
and URL-encoded NULL bytes.

The vulnerabilities are reported in version 1.6.2. Other versions may
also be affected.

SOLUTION:
Edit the source code to ensure that input is properly sanitised and
verified..
Do not visit untrusted web sites while logged on to the application.

PROVIDED AND/OR DISCOVERED BY:
Antonio "s4tan" Parata, Francesco "ascii" Ongaro, and Giovanni
"evilaliv3" Pellerano.

ORIGINAL ADVISORY:
http://www.ush.it/team/ush/hack-zabbix_162/adv.txt

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