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PHP-Nuke CAPTCHA Bypass Weakness
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Secunia Advisory:
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SA18936
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Release Date:
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2006-02-20
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Critical:
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Not critical
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Impact:
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Security Bypass
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Where:
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From remote
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Solution Status:
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Unpatched
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| Software: | PHP-Nuke 6.x
PHP-Nuke 7.x
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This advisory is currently marked as unpatched!
- Companies can be alerted when a patch is released! |
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Description:
Janek Vind "waraxe" has reported a weakness in PHP-Nuke, which can be exploited by malicious people to bypass certain security restrictions.
A design error in the CAPTCHA security feature, which relies only on the "sitekey", the User-Agent HTTP header, a random number, and the current date to generate the response code can be exploited to bypass the security feature by replaying any random number and response code pair for the current day.
The weakness has been reported in versions 6.0 through 7.9.
Solution:
Do not rely on the CAPTCHA feature to prevent automated logons to PHP-Nuke.
Provided and/or discovered by:
Janek Vind "waraxe"
Original Advisory:
http://www.waraxe.us/advisory-45.html
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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