CVE-2006-0805
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,…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.00%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 2.0
- 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
- EPSS
- 3.00% probability · 87th percentile
- CISA KEV
- Not listed
- Affected
- francisco burzi/php-nuke
- Source
- cve@mitre.org
References
- http://secunia.com/advisories/18936
- http://securityreason.com/securityalert/455
- http://www.securityfocus.com/archive/1/425394/100/0/threaded
- http://www.securityfocus.com/bid/16722Exploit
- http://www.waraxe.us/advisory-45.htmlExploit, Vendor Advisory
- http://secunia.com/advisories/18936
- http://securityreason.com/securityalert/455
- http://www.securityfocus.com/archive/1/425394/100/0/threaded
- http://www.securityfocus.com/bid/16722Exploit
- http://www.waraxe.us/advisory-45.htmlExploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.