[Full-disclosure] Secunia Research: Tagger LE PHP "eval()" Injection Vulnerabilities

2006-09-14T00:00:00
ID SECURITYVULNS:DOC:14276
Type securityvulns
Reporter Securityvulns
Modified 2006-09-14T00:00:00

Description

======================================================================

                 Secunia Research 14/09/2006

    - Tagger LE PHP "eval()" Injection Vulnerabilities -

====================================================================== Table of Contents

Affected Software....................................................1 Severity.............................................................2 Vendor's Description of Software.....................................3 Description of Vulnerabilities.......................................4 Solution.............................................................5 Time Table...........................................................6 Credits..............................................................7 References...........................................................8 About Secunia........................................................9 Verification........................................................10

====================================================================== 1) Affected Software

Tagger LE latest version (product has no version information).

Other versions may also be affected.

====================================================================== 2) Severity

Rating: Highly critical Impact: System Access Where: From Remote

====================================================================== 3) Vendor's Description of Software

Tagger LE is a tagboard (mini message board) that will add visitor interactivity with your website and a form of communication to one and another. Tagger's many features include an Administration panel, IP Banning, Smart Auto Refresh, Smilies, Imposter prevention, and more. A perfect addition to a website lacking interactivity. This solution uses a Flat File Database (MySQL is not required).

Product link: http://www.venturenine.com/

====================================================================== 4) Description of Vulnerabilities

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 isn't 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

====================================================================== 5) Solution

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

====================================================================== 6) Time Table

30/08/2006 - Initial vendor notification. 13/09/2006 - Final reminder. 14/09/2006 - Public disclosure.

====================================================================== 7) Credits

Discovered by Andreas Sandblad, Secunia Research.

====================================================================== 8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned CVE-2006-4437 for the vulnerabilities.

====================================================================== 9) About Secunia

Secunia collects, validates, assesses, and writes advisories regarding all the latest software vulnerabilities disclosed to the public. These advisories are gathered in a publicly available database at the Secunia website:

http://secunia.com/

Secunia offers services to our customers enabling them to receive all relevant vulnerability information to their specific system configuration.

Secunia offers a FREE mailing list called Secunia Security Advisories:

http://secunia.com/secunia_security_advisories/

====================================================================== 10) Verification

Please verify this advisory by visiting the Secunia website: http://secunia.com/secunia_research/2006-62/advisory/

Complete list of vulnerability reports published by Secunia Research: http://secunia.com/secunia_research/

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