Module: PWN::SAST::CmdExecutionRuby

Defined in:
lib/pwn/sast/cmd_execution_ruby.rb

Overview

SAST Module used to identify command execution residing within Ruby source code.

Class Method Summary collapse

Class Method Details

.authors ⇒ Object

Author(s)

0day Inc. <[email protected]>



70
71
72
73
74
 
# File 'lib/pwn/sast/cmd_execution_ruby.rb', line 70

public_class_method def self.authors
  "AUTHOR(S):
    0day Inc. <[email protected]>
  "
end

.help ⇒ Object

Display Usage for this Module



78
79
80
81
82
83
84
85
86
87
 
# File 'lib/pwn/sast/cmd_execution_ruby.rb', line 78

public_class_method def self.help
  puts "USAGE:
    sast_arr = #{self}.scan(
      dir_path: 'optional path to dir defaults to .',
      git_repo_root_uri: 'optional http uri of git repo scanned'
    )

    #{self}.authors
  "
end

.scan(opts = {}) ⇒ Object

Supported Method Parameters

PWN::SAST::CmdExecutionRuby(

dir_path: 'optional path to dir defaults to .'
git_repo_root_uri: 'optional http uri of git repo scanned'

)



17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
 
# File 'lib/pwn/sast/cmd_execution_ruby.rb', line 17

public_class_method def self.scan(opts = {})
  dir_path = opts[:dir_path]
  git_repo_root_uri = opts[:git_repo_root_uri].to_s.scrub

  test_case_filter = "
    grep -n \
    -e '`.*`' \
    -e 'eval(' \
    -e 'exec(' \
    -e 'exec \"' \
    -e 'system(' \
    -e 'system \"' \
    -e 'IO.popen' \
    -e 'Open3.popen3' \
    -e 'Open3.popen3' \
    -e 'Facter::Util::Resolution::exec' \
    -e 'PTY.spawn' \
    -e 'Process.fork' \
    -e '%x' {PWN_SAST_SRC_TARGET} 2> /dev/null
  "

  include_extensions = %w[.rb .erb .rhtml .rake .gemspec .gem .ru .bundle]

  PWN::SAST::TestCaseEngine.execute(
    test_case_filter: test_case_filter,
    security_references: security_references,
    dir_path: dir_path,
    include_extensions: include_extensions,
    git_repo_root_uri: git_repo_root_uri
  )
rescue StandardError => e
  raise e
end

.security_references ⇒ Object

Used primarily to map NIST 800-53 Revision 4 Security Controls web.nvd.nist.gov/view/800-53/Rev4/impact?impactName=HIGH to PWN Exploit & Static Code Anti-Pattern Matching Modules to Determine the level of Testing Coverage w/ PWN.



56
57
58
59
60
61
62
63
64
65
66
 
# File 'lib/pwn/sast/cmd_execution_ruby.rb', line 56

public_class_method def self.security_references
  {
    sast_module: self,
    section: 'INFORMATION INPUT VALIDATION',
    nist_800_53_uri: 'https://csrc.nist.gov/projects/cprt/catalog#/cprt/framework/version/SP_800_53_5_1_1/home?element=SI-10',
    cwe_id: '78',
    cwe_uri: 'https://cwe.mitre.org/data/definitions/78.html'
  }
rescue StandardError => e
  raise e
end