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TITLE:
Tagger LE PHP "eval()" Injection Vulnerabilities

SECUNIA ADVISORY ID:
SA21449

VERIFY ADVISORY:
http://secunia.com/advisories/21449/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
Tagger LE
http://secunia.com/product/11732/

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

Input passed via the query string in tags.php, sign.php, and
admin/index.php is not properly sanitised before being used in an
"eval()" call. This can be exploited to inject and execute arbitrary
PHP code via a specially crafted parameter name or value.

Examples:
http://[host]/tags.php?foo=%22.[code].%22
http://[host]/sign.php?foo=%22.[code].%22
http://[host]/admin/index.php?foo=%22.[code].%22
http://[host]/taggerLE/tags.php?foo;[code];$foo=foo
http://[host]/taggerLE/sign.php?foo;[code];$foo=foo
http://[host]/admin/index.php?foo;[code];$foo=foo

The vulnerabilities have been confirmed in the latest available
version. Other versions may also be affected.

SOLUTION:
Edit the source code to ensure that input is properly sanitised.

PROVIDED AND/OR DISCOVERED BY:
Andreas Sandblad, Secunia Research.

ORIGINAL ADVISORY:
Secunia Research:
http://secunia.com/secunia_research/2006-62/

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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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