Module: PWN::SAST::UseAfterFree

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

Overview

SAST Module used to identify banned function calls in C & C++ code per: https://msdn.microsoft.com/en-us/library/bb288454.aspx

Class Method Summary collapse

Class Method Details

.authors ⇒ Object

Author(s)

0day Inc. [email protected]



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# File 'lib/pwn/sast/use_after_free.rb', line 62

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

.help ⇒ Object

Display Usage for this Module



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# File 'lib/pwn/sast/use_after_free.rb', line 70

public_class_method def self.help
  puts "USAGE:
    # :dir_path => optional path to dir defaults to .
    #{self}.scan(
      dir_path: 'optional - dir path value consumed by #scan',
      git_repo_root_uri: 'optional - git repo root uri value consumed by #scan'
    )

    # Used primarily to map NIST 800-53 Revision 4 Security Controls
    #{self}.security_references

    # Print the AUTHOR(S) string for this module.
    #{self}.authors
  "
  constants.sort
end

.scan(opts = {}) ⇒ Object

Supported Method Parameters

PWN::SAST::UseAfterFree.scan( :dir_path => 'optional path to dir defaults to .' :git_repo_root_uri => 'optional http uri of git repo scanned' )



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# File 'lib/pwn/sast/use_after_free.rb', line 18

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 -Fn \
    -e 'calloc(' \
    -e 'free(' \
    -e 'malloc(' \
    -e 'realloc(' {PWN_SAST_SRC_TARGET} 2> /dev/null
  "

  include_extensions = %w[.c .cats .idc .cpp .cc .cxx .c++ .cp .CPP .C .cppm .ixx .h .hpp .hxx .hh .h++ .inc .inl .ipp .tcc .tpp .txx .i .s .asm .o .obj .a .so .lib .dll .exe .pdb .vcxproj .sln .dsp .dsw .cbp .cmake .make .mk]

  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 https://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.



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# File 'lib/pwn/sast/use_after_free.rb', line 48

public_class_method def self.security_references
  {
    sast_module: self,
    section: 'MEMORY PROTECTION',
    nist_800_53_uri: 'https://csrc.nist.gov/projects/cprt/catalog#/cprt/framework/version/SP_800_53_5_1_1/home?element=SI-16',
    cwe_id: '416',
    cwe_uri: 'https://cwe.mitre.org/data/definitions/416.html'
  }
rescue StandardError => e
  raise e
end