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.
Published: 2006-02-21
Score: 7.5 High
EPSS: 1.8% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2006-0811 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.
History

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Subscriptions

Francisco Burzi Php-nuke
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-07T16:48:56.622Z

Reserved: 2006-02-21T00:00:00.000Z

Link: CVE-2006-0805

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2006-02-21T02:02:00.000

Modified: 2026-04-16T00:27:16.627

Link: CVE-2006-0805

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses