CVE-2013-0263 rubygem-rack: Timing attack in cookie sessions
Published: February 07, 2013
SECURITY IDENTIFIERS
- CVE: CVE-2013-0263 (NVD)
- GHSA: GHSA-xc85-32mf-xpv8
- OSVDB: OSVDB-89939
GEM
SEVERITY
CVSS v2.0: 5.1 (Medium)
PATCHED VERSIONS
~> 1.1.6
~> 1.2.8
~> 1.3.10
~> 1.4.5
>= 1.5.2
DESCRIPTION
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.