====================================================================== 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/ ======================================================================