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Cisco Bug: CSCur11214 - Implement HTTP Strict Transport Security (HSTS) on CRES

Last Modified

Dec 15, 2019

Products (1)

  • Cisco Registered Envelope Service

Known Affected Releases


Description (partial)

User's that bookmark (note http, not https) or just type "" in their browser's URL bar are susceptible to a man-in-the-middle attack. While that possibility can't be completely removed, the chance of it happening can be greatly reduced by implementing HTTP Strict Transport Security (HSTS, defined in RFC 6797) on CRES.

Access CRES using an http URL. CRES will redirect the user to an https URL for the rest of the session, but that initial request leaves the user open to a MitM attack.
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