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A new version (0.9.0.0 - Release Candidate 1) of the free Secunia PSI
has been released. The new version includes many new and advanced
features, which makes it even easier to stay patched.

Download and test it today:
https://psi.secunia.com/

Read more about this new version:
https://psi.secunia.com/?page=changelog

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TITLE:
MyBB PHP Code Execution and SQL Injection Vulnerabilities

SECUNIA ADVISORY ID:
SA28509

VERIFY ADVISORY:
http://secunia.com/advisories/28509/

CRITICAL:
Highly critical

IMPACT:
Manipulation of data, Exposure of sensitive information, System
access

WHERE:
>From remote

SOFTWARE:
MyBB (formerly MyBulletinBoard) 1.x
http://secunia.com/product/4479/

DESCRIPTION:
Some vulnerabilities have been reported in MyBB, which can be
exploited by malicious users to conduct SQL injection attacks, and by
malicious people to compromise a vulnerable system.

1) Input passed to the "sortby" parameter in forumdisplay.php and
search.php (when "action" is set to "results") is not properly
sanitised before being used in "eval()" calls. This can be exploited
to inject and execute arbitrary PHP code via a specially crafted
parameter value.

Successful exploitation of this vulnerability requires knowledge of
valid "fid" values for forumdisplay.php and valid "sid" values for
search.php.

2) Input passed to the "mergepost" array parameter (when "action" is
set to "do_mergeposts"), "rid" (when "action" is set to
"allreports"), and "threads" (when "action" is set to
"do_multimovethreads") in moderation.php is not properly sanitised
before being used in SQL queries. This can be exploited to manipulate
SQL queries by injecting arbitrary SQL code.

Successful exploitation of this vulnerability requires valid
moderator credentials.

3) Input passed to the "request" array parameter and "gid" in
admin/usergroups.php (when "action" is set to "do_joinrequests") is
not properly sanitised before being used in SQL queries. This can be
exploited to manipulate SQL queries by injecting arbitrary SQL code.

Successful exploitation of this vulnerability requires valid admin
credentials.

The vulnerabilities are reported in version 1.2.10 and all previous
1.2.x releases. Other versions may also be affected.

SOLUTION:
Update to version 1.2.11.

Use another product.

PROVIDED AND/OR DISCOVERED BY:
1) Janek Vind a.k.a. waraxe, koziolek
2) Janek Vind a.k.a. waraxe
3) Janek Vind a.k.a. waraxe

ORIGINAL ADVISORY:
MyBB:
http://community.mybboard.net/showthread.php?tid=27227

Janek Vind:
1) http://www.waraxe.us/advisory-61.html
2, 3) http://www.waraxe.us/advisory-62.html

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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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