A vulnerability has been identified in TWiki, which could be exploited by remote attackers to bypass security restrictions. This issue is due to an error when handling failed login attempts and 401 HTTP responses redirecting to certain topics (e.g. TWikiRegistration), which could be exploited by remote attackers to bypass the authentication process and gain unauthorized read access to restricted contents [...]
References
http://www.frsirt.com/english/advisories/2006/4790
http://twiki.org/cgi-bin/view/Codev/SecurityAlert-CVE-2006-6071
Credits
Vulnerability reported by George Clark
ChangeLog
2006-11-30 : Initial release
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