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CVE-2006-0805

UnknownEPSS 2.93%

Last modified

CVE-2006-0805 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 2.93% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
2.93%

85.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
Francisco BurziPhp-Nuke6.0
Francisco BurziPhp-Nuke6.5
Francisco BurziPhp-Nuke6.5_beta1
Francisco BurziPhp-Nuke6.5_final
Francisco BurziPhp-Nuke6.5_rc1
Francisco BurziPhp-Nuke6.5_rc2
Francisco BurziPhp-Nuke6.5_rc3
Francisco BurziPhp-Nuke6.6
Francisco BurziPhp-Nuke6.7
Francisco BurziPhp-Nuke6.9
Francisco BurziPhp-Nuke7.0
Francisco BurziPhp-Nuke7.0_final
Francisco BurziPhp-Nuke7.1
Francisco BurziPhp-Nuke7.2
Francisco BurziPhp-Nuke7.3
Francisco BurziPhp-Nuke7.4
Francisco BurziPhp-Nuke7.5
Francisco BurziPhp-Nuke7.6
Francisco BurziPhp-Nuke7.7
Francisco BurziPhp-Nuke7.8
Francisco BurziPhp-Nuke7.9

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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, performing a valid challenge/response, then replaying that pair in the random_num and gfx_check parameters.
How severe is CVE-2006-0805?
Severity scoring for CVE-2006-0805 is pending analysis. The EPSS model estimates a 2.93% probability of exploitation in the next 30 days.
How do I fix CVE-2006-0805?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2006-0805?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST