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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.

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