Public Key Pinning (PKP) Bypass Vulnerability in Mozilla Firefox

CVE-2014-1582 · MEDIUM Severity

AV:N/AC:M/AU:N/C:N/I:P/A:N

The Public Key Pinning (PKP) implementation in Mozilla Firefox before 33.0 does not properly consider the connection-coalescing behavior of SPDY and HTTP/2 in the case of a shared IP address, which allows man-in-the-middle attackers to bypass an intended pinning configuration and spoof a web site by providing a valid certificate from an arbitrary recognized Certification Authority.

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