Microsoft Site Server and CIS Cookie Caching Vulnerability

Some versions of Site Server and Commercial Internet System will send pages that set a cookie without flagging the page with an expiration header. If a web proxy caches the page, the next user to access that page through the same proxy will receive the same Set Cookie header. The second and subsequent users to do so may view personal or private information belonging to the first user if the cookies are part of an authentication scheme.


 

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