class Brakeman::CheckSanitizeMethods
sanitize and sanitize_css are vulnerable: CVE-2013-1855 and CVE-2013-1857
Public Instance Methods
check_cve_2013_1855()
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# File lib/brakeman/checks/check_sanitize_methods.rb, line 34 def check_cve_2013_1855 check_for_cve :sanitize_css, :CVE_2013_1855, "https://groups.google.com/d/msg/rubyonrails-security/4_QHo4BqnN8/_RrdfKk12I4J" end
check_cve_2013_1857()
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# File lib/brakeman/checks/check_sanitize_methods.rb, line 38 def check_cve_2013_1857 check_for_cve :sanitize, :CVE_2013_1857, "https://groups.google.com/d/msg/rubyonrails-security/zAAU7vGTPvI/1vZDWXqBuXgJ" end
check_cve_2018_8048()
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# File lib/brakeman/checks/check_sanitize_methods.rb, line 72 def check_cve_2018_8048 if loofah_vulnerable_cve_2018_8048? message = msg(msg_version(tracker.config.gem_version(:loofah), "loofah gem"), " is vulnerable (CVE-2018-8048). Upgrade to 2.2.1") if tracker.find_call(:target => false, :method => :sanitize).any? confidence = :high else confidence = :medium end warn :warning_type => "Cross-Site Scripting", :warning_code => :CVE_2018_8048, :message => message, :gem_info => gemfile_or_environment(:loofah), :confidence => confidence, :link_path => "https://github.com/flavorjones/loofah/issues/144", :cwe_id => [79] end end
check_for_cve(method, code, link)
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# File lib/brakeman/checks/check_sanitize_methods.rb, line 42 def check_for_cve method, code, link tracker.find_call(:target => false, :method => method).each do |result| next if duplicate? result add_result result message = msg(msg_version(rails_version), " has a vulnerability in ", msg_code(method), ". Upgrade to ", msg_version(@fix_version), " or patch") warn :result => result, :warning_type => "Cross-Site Scripting", :warning_code => code, :message => message, :confidence => :high, :link_path => link, :cwe_id => [79] end end
check_rails_html_sanitizer()
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# File lib/brakeman/checks/check_sanitize_methods.rb, line 59 def check_rails_html_sanitizer rhs_version = tracker.config.gem_version(:'rails-html-sanitizer') if version_between? "1.0.0", "1.0.2", rhs_version warn_sanitizer_cve "CVE-2015-7578", "https://groups.google.com/d/msg/rubyonrails-security/uh--W4TDwmI/JbvSRpdbFQAJ", "1.0.3" warn_sanitizer_cve "CVE-2015-7580", "https://groups.google.com/d/msg/rubyonrails-security/uh--W4TDwmI/m_CVZtdbFQAJ", "1.0.3" end if version_between? "1.0.0", "1.0.3", rhs_version warn_sanitizer_cve "CVE-2018-3741", "https://groups.google.com/d/msg/rubyonrails-security/tP7W3kLc5u4/uDy2Br7xBgAJ", "1.0.4" end end
loofah_vulnerable_cve_2018_8048?()
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# File lib/brakeman/checks/check_sanitize_methods.rb, line 92 def loofah_vulnerable_cve_2018_8048? loofah_version = tracker.config.gem_version(:loofah) # 2.2.1 is fix version loofah_version and version_between?("0.0.0", "2.2.0", loofah_version) end
run_check()
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# File lib/brakeman/checks/check_sanitize_methods.rb, line 10 def run_check @fix_version = case when version_between?('2.0.0', '2.3.17') '2.3.18' when version_between?('3.0.0', '3.0.99') '3.2.13' when version_between?('3.1.0', '3.1.11') '3.1.12' when version_between?('3.2.0', '3.2.12') '3.2.13' end if @fix_version check_cve_2013_1855 check_cve_2013_1857 end if tracker.config.has_gem? :'rails-html-sanitizer' check_rails_html_sanitizer end check_cve_2018_8048 end
warn_sanitizer_cve(cve, link, upgrade_version)
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# File lib/brakeman/checks/check_sanitize_methods.rb, line 99 def warn_sanitizer_cve cve, link, upgrade_version message = msg(msg_version(tracker.config.gem_version(:'rails-html-sanitizer'), "rails-html-sanitizer"), " is vulnerable ", msg_cve(cve), ". Upgrade to ", msg_version(upgrade_version, "rails-html-sanitizer")) if tracker.find_call(:target => false, :method => :sanitize).any? confidence = :high else confidence = :medium end warn :warning_type => "Cross-Site Scripting", :warning_code => cve.tr('-', '_').to_sym, :message => message, :gem_info => gemfile_or_environment(:'rails-html-sanitizer'), :confidence => confidence, :link_path => link, :cwe_id => [79] end