CVE-2006-0805

Summary

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 Software

Weaknesses

• n/a

ADP Enrichment

CVE Program Container

Additional 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

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

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