CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
EPSS
Percentile
50.8%
The HTTP Alternative Services feature in Mozilla Firefox before 37.0.1
allows man-in-the-middle attackers to bypass an intended X.509
certificate-verification step for an SSL server by specifying that server
in the uri-host field of an Alt-Svc HTTP/2 response header.