Sha256: ab5b508d5f48a8ec6afb58f8ab3265bd61c656fb78a03e417febbcd717e72f63
Contents?: true
Size: 1.51 KB
Versions: 40
Compression:
Stored size: 1.51 KB
Contents
require 'brakeman/checks/base_check'
class Brakeman::CheckJSONEncoding < Brakeman::BaseCheck
Brakeman::Checks.add self
@description = "Checks for missing JSON encoding (CVE-2015-3226)"
def run_check
if (version_between? "4.1.0", "4.1.10" or version_between? "4.2.0", "4.2.1") and not has_workaround?
message = msg(msg_version(rails_version), " does not encode JSON keys ", msg_cve("CVE-2015-3226"), ". Upgrade to ")
if version_between? "4.1.0", "4.1.10"
message << msg_version("4.1.11")
else
message << msg_version("4.2.2")
end
if tracker.find_call(:methods => [:to_json, :encode]).any?
confidence = :high
else
confidence = :medium
end
warn :warning_type => "Cross-Site Scripting",
:warning_code => :CVE_2015_3226,
:message => message,
:confidence => confidence,
:gem_info => gemfile_or_environment,
:link_path => "https://groups.google.com/d/msg/rubyonrails-security/7VlB_pck3hU/3QZrGIaQW6cJ",
:cwe_id => [79]
end
end
def has_workaround?
workaround = s(:module, :ActiveSupport,
s(:module, :JSON,
s(:module, :Encoding,
s(:call, nil, :private),
s(:class, :EscapedString, nil,
s(:defn, :to_s,
s(:args),
s(:self))))))
tracker.initializers.any? do |_name, initializer|
initializer == workaround
end
end
end
Version data entries
40 entries across 40 versions & 3 rubygems