lib/brakeman/checks/check_basic_auth_timing_attack.rb
require 'brakeman/checks/base_check'
class Brakeman::CheckBasicAuthTimingAttack < Brakeman::BaseCheck
Brakeman::Checks.add self
@description = "Check for timing attack in basic auth (CVE-2015-7576)"
def run_check
@upgrade = case
when version_between?("0.0.0", "3.2.22")
"3.2.22.1"
when version_between?("4.0.0", "4.1.14")
"4.1.14.1"
when version_between?("4.2.0", "4.2.5")
"4.2.5.1"
else
return
end
check_basic_auth_call
end
def check_basic_auth_call
tracker.find_call(target: nil, method: :http_basic_authenticate_with).each do |result|
warn :result => result,
:warning_type => "Timing Attack",
:warning_code => :CVE_2015_7576,
:message => msg("Basic authentication in ", msg_version(rails_version), " is vulnerable to timing attacks. Upgrade to ", msg_version(@upgrade)),
:confidence => :high,
:link => "https://groups.google.com/d/msg/rubyonrails-security/ANv0HDHEC3k/mt7wNGxbFQAJ",
:cwe_id => [1254]
end
end
end