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Versions: 40
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Stored size: 1.86 KB
Contents
require 'brakeman/checks/base_check'
class Brakeman::CheckSimpleFormat < Brakeman::CheckCrossSiteScripting
Brakeman::Checks.add self
@description = "Checks for simple_format XSS vulnerability (CVE-2013-6416) in certain versions"
def initialize *args
super
@found_any = false
end
def run_check
if version_between? "4.0.0", "4.0.1"
@inspect_arguments = true
@ignore_methods = Set[:h, :escapeHTML]
check_simple_format_usage
generic_warning unless @found_any
end
end
def generic_warning
message = msg(msg_version(rails_version), " has a vulnerability in ", msg_code("simple_format"), " ", msg_cve("CVE-2013-6416"), ". Upgrade to ", msg_version("4.0.2"))
warn :warning_type => "Cross-Site Scripting",
:warning_code => :CVE_2013_6416,
:message => message,
:confidence => :medium,
:gem_info => gemfile_or_environment,
:link_path => "https://groups.google.com/d/msg/ruby-security-ann/5ZI1-H5OoIM/ZNq4FoR2GnIJ",
:cwe_id => [79]
end
def check_simple_format_usage
tracker.find_call(:target => false, :method => :simple_format).each do |result|
@matched = false
process_call result[:call]
if @matched
warn_on_simple_format result, @matched
end
end
end
def process_call exp
@mark = true
actually_process_call exp
exp
end
def warn_on_simple_format result, match
return unless original? result
@found_any = true
warn :result => result,
:warning_type => "Cross-Site Scripting",
:warning_code => :CVE_2013_6416_call,
:message => msg("Values passed to ", msg_code("simple_format"), " are not safe in ", msg_version(rails_version)),
:confidence => :high,
:link_path => "https://groups.google.com/d/msg/ruby-security-ann/5ZI1-H5OoIM/ZNq4FoR2GnIJ",
:user_input => match,
:cwe_id => [79]
end
end
Version data entries
40 entries across 40 versions & 3 rubygems