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TITLE:
CJ Tag Board PHP Code Injection Vulnerabilities

SECUNIA ADVISORY ID:
SA21561

VERIFY ADVISORY:
http://secunia.com/advisories/21561/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
CJ Tag Board 3.x
http://secunia.com/product/5769/

DESCRIPTION:
Secunia Research has discovered some vulnerabilities in CJ Tag Board,
which can be exploited by malicious people to compromise a vulnerable
system.

1) Input passed to the "User-Agent" HTTP header in tag.php is not
properly sanitised before being stored. This can be exploited to
inject arbitrary PHP code, which is executed when requesting the
all.php file.

2) Input passed to the "banned" parameter in admin_index.php is not
properly sanitised before being stored. This can be exploited to
inject arbitrary PHP code, but requires administrative user
privileges.

The vulnerabilities have been confirmed in version 3.0. Other
versions may also be affected.

SOLUTION:
Use another product.

PROVIDED AND/OR DISCOVERED BY:
Secunia Research

ORIGINAL ADVISORY:
Secunia Research:
http://secunia.com/secunia_research/2006-61/

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About:
This Advisory was delivered by Secunia as a free service to help
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