lib/brakeman/checks/check_digest_dos.rb
require 'brakeman/checks/base_check'
class Brakeman::CheckDigestDoS < Brakeman::BaseCheck
Brakeman::Checks.add self
@description = "Checks for digest authentication DoS vulnerability"
def run_check
message = msg("Vulnerability in digest authentication ", msg_cve("CVE-2012-3424"), ". Upgrade to ")
if version_between? "3.0.0", "3.0.15"
message << msg_version("3.0.16")
elsif version_between? "3.1.0", "3.1.6"
message << msg_version("3.1.7")
elsif version_between? "3.2.0", "3.2.5"
message << msg_version("3.2.7")
else
return
end
if with_http_digest?
confidence = :high
else
confidence = :weak
end
warn :warning_type => "Denial of Service",
:warning_code => :CVE_2012_3424,
:message => message,
:confidence => confidence,
:link_path => "https://groups.google.com/d/topic/rubyonrails-security/vxJjrc15qYM/discussion",
:gem_info => gemfile_or_environment,
:cwe_id => [287]
end
def with_http_digest?
not tracker.find_call(:target => false, :method => [:authenticate_or_request_with_http_digest, :authenticate_with_http_digest]).empty?
end
end