RubySec

Providing security resources for the Ruby community

CVE-2018-1000119 (rack-protection): rack-protection gem timing attack vulnerability when validating CSRF token

ADVISORIES

GEM

rack-protection

SEVERITY

CVSS v3: 5.9

CVSS v2: 4.3

PATCHED VERSIONS

  • ~> 1.5.5
  • >= 2.0.0

DESCRIPTION

Sinatra rack-protection versions 1.5.4 and 2.0.0.rc3 and earlier contains a timing attack vulnerability in the CSRF token checking that can result in signatures can be exposed. This attack appear to be exploitable via network connectivity to the ruby application.