| Package | Affected versions | Patched versions |
|---|---|---|
| php-nuke | = 6.0= 6.5= 6.5_beta1= 6.5_final= 6.5_rc1= 6.5_rc2= 6.5_rc3= 6.6= 6.7= 6.9= 7.0= 7.0_final= 7.1= 7.2= 7.3= 7.4= 7.5= 7.6= 7.7= 7.8= 7.9 |
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.
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