Summary
It is possible to access protected web pages
by changing / with // or /./
This was a bug in old versions of CERN web server
A work around consisted in rejecting patterns like:
//*
*//*
/./*
*/./*
Solution
Upgrade your web server or tighten your filtering rules
Severity
Classification
-
CVSS Base Score: 5.0
AV:N/AC:L/Au:N/C:P/I:N/A:N
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