2013-02-08 21:55:01 2018-08-13 23:47:43

Rack::Session::Cookie in Rack 1.5.x before 1.5.2, 1.4.x before 1.4.5, 1.3.x before 1.3.10, 1.2.x before 1.2.8, and 1.1.x before 1.1.6 allows remote attackers to guess the session cookie, gain privileges, and execute arbitrary code via a timing attack involving an HMAC comparison function that does not run in constant time.

Vector

NETWORK

Complexity

HIGH

Authentication

NONE

Confidentiality

PARTIAL

Integrity

PARTIAL

Availability

PARTIAL