Description (CNA)
The CAPTCHA functionality in php-Nuke 6.0 through 7.9 uses fixed challenge/response pairs that only vary once per day based on the User Agent (HTTP_USER_AGENT), which allows remote attackers to bypass CAPTCHA controls by fixing the User Agent, performing a valid challenge/response, then replaying that pair in the random_num and gfx_check parameters.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| n/a / n/a | affected n/a |
CWE
No CWE identifiers supplied.
References
- http://www.securityfocus.com/bid/16722
- http://securityreason.com/securityalert/455
- http://www.securityfocus.com/archive/1/425394/100/0/threaded
- http://secunia.com/advisories/18936
- http://www.waraxe.us/advisory-45.html
ADP enrichment
No English description supplied.