Class: Brakeman::CheckSSLVerify

Inherits:
BaseCheck
  • Object
show all
Defined in:
lib/brakeman/checks/check_ssl_verify.rb

Overview

Checks if verify_mode= is called with OpenSSL::SSL::VERIFY_NONE

Constant Summary collapse

SSL_VERIFY_NONE = 
s(:colon2, s(:colon2, s(:const, :OpenSSL), :SSL), :VERIFY_NONE)

Instance Method Summary collapse

Instance Method Details

#check_http_start ⇒ Object 



27
28
29
 
# File 'lib/brakeman/checks/check_ssl_verify.rb', line 27

def check_http_start
  tracker.find_call(:target => :'Net::HTTP', :method => :start).each { |call| process_http_start_result call }
end

#check_open_ssl_verify_none ⇒ Object 



17
18
19
 
# File 'lib/brakeman/checks/check_ssl_verify.rb', line 17

def check_open_ssl_verify_none
  tracker.find_call(:method => :verify_mode=).each {|call| process_verify_mode_result(call) }
end

#process_http_start_result(result) ⇒ Object 



31
32
33
34
35
36
37
 
# File 'lib/brakeman/checks/check_ssl_verify.rb', line 31

def process_http_start_result result
  arg = result[:call].last_arg

  if hash? arg and hash_access(arg, :verify_mode) == SSL_VERIFY_NONE
    warn_about_ssl_verification_bypass result
  end
end

#process_verify_mode_result(result) ⇒ Object 



21
22
23
24
25
 
# File 'lib/brakeman/checks/check_ssl_verify.rb', line 21

def process_verify_mode_result result
  if result[:call].last_arg == SSL_VERIFY_NONE
    warn_about_ssl_verification_bypass result
  end
end

#run_check ⇒ Object 



12
13
14
15
 
# File 'lib/brakeman/checks/check_ssl_verify.rb', line 12

def run_check
  check_open_ssl_verify_none
  check_http_start
end

#warn_about_ssl_verification_bypass(result) ⇒ Object 



39
40
41
42
43
44
45
46
47
48
 
# File 'lib/brakeman/checks/check_ssl_verify.rb', line 39

def warn_about_ssl_verification_bypass result
  return unless original? result

  warn :result => result,
    :warning_type => "SSL Verification Bypass",
    :warning_code => :ssl_verification_bypass,
    :message => "SSL certificate verification was bypassed",
    :confidence => :high,
    :cwe_id => [295]
end