Module: PWN::SAST::BannedFunctionCallsC

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

Overview

SAST Module used to identify banned function calls in C & C++ code per: 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/banned_function_calls_c.rb', line 187

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/banned_function_calls_c.rb', line 195

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::BannedFunctionCallsC.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/banned_function_calls_c.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 'strcpy' \
    -e 'strcpyA' \
    -e 'strcpyW' \
    -e 'wcscpy' \
    -e '_tcscpy' \
    -e '_mbscpy' \
    -e 'StrCpy' \
    -e 'StrCpyA' \
    -e 'StrCpyW' \
    -e 'lstrcpy' \
    -e 'lstrcpyA' \
    -e 'lstrcpyW' \
    -e '_tccpy' \
    -e '_mbccpy' \
    -e '_ftcscpy' \
    -e 'strncpy' \
    -e 'wcsncpy' \
    -e '_tcsncpy' \
    -e '_mbsncpy' \
    -e '_mbsnbcpy' \
    -e 'StrCpyN' \
    -e 'StrCpyNA' \
    -e 'StrCpyNW' \
    -e 'StrNCpy' \
    -e 'strcpynA' \
    -e 'StrNCpyA' \
    -e 'StrNCpyW' \
    -e 'lstrcpyn' \
    -e 'lstrcpynA' \
    -e 'lstrcpynW' \
    -e 'strcat' \
    -e 'strcatA' \
    -e 'strcatW' \
    -e 'wcscat' \
    -e '_tcscat' \
    -e '_mbscat' \
    -e 'StrCat' \
    -e 'StrCatA' \
    -e 'StrCatW' \
    -e 'lstrcat' \
    -e 'lstrcatA' \
    -e 'lstrcatW' \
    -e 'StrCatBuff' \
    -e 'StrCatBuffA' \
    -e 'StrCatBuffW' \
    -e 'StrCatChainW' \
    -e '_tccat' \
    -e '_mbccat' \
    -e '_ftcscat' \
    -e 'strncat' \
    -e 'wcsncat' \
    -e '_tcsncat' \
    -e '_mbsncat' \
    -e '_mbsnbcat' \
    -e 'StrCatN' \
    -e 'StrCatNA' \
    -e 'StrCatNW' \
    -e 'StrNCat' \
    -e 'StrNCatA' \
    -e 'StrNCatW' \
    -e 'lstrncat' \
    -e 'lstrcatnA' \
    -e 'lstrcatnW' \
    -e 'lstrcatn' \
    -e 'sprintfW' \
    -e 'sprintfA' \
    -e 'wsprintf' \
    -e 'wsprintfW' \
    -e 'wsprintfA' \
    -e 'sprintf' \
    -e 'swprintf' \
    -e '_stprintf' \
    -e 'wvsprintf' \
    -e 'wvsprintfA' \
    -e 'wvsprintfW' \
    -e 'vsprintf' \
    -e '_vstprintf' \
    -e 'vswprintf' \
    -e 'wvsprintf' \
    -e 'wvsprintfA' \
    -e 'wvsprintfW' \
    -e 'vsprintf' \
    -e '_vstprintf' \
    -e 'vswprintf' \
    -e 'strncpy' \
    -e 'wcsncpy' \
    -e '_tcsncpy' \
    -e '_mbsncpy' \
    -e '_mbsnbcpy' \
    -e 'StrCpyN' \
    -e 'StrCpyNA' \
    -e 'StrCpyNW' \
    -e 'StrNCpy' \
    -e 'strcpynA' \
    -e 'StrNCpyA' \
    -e 'StrNCpyW' \
    -e 'lstrcpyn' \
    -e 'lstrcpynA' \
    -e 'lstrcpynW' \
    -e '_fstrncpy' \
    -e 'strncat' \
    -e 'wcsncat' \
    -e '_tcsncat' \
    -e '_mbsncat' \
    -e '_mbsnbcat' \
    -e 'StrCatN' \
    -e 'StrCatNA' \
    -e 'StrCatNW' \
    -e 'StrNCat' \
    -e 'StrNCatA' \
    -e 'StrNCatW' \
    -e 'lstrncat' \
    -e 'lstrcatnA' \
    -e 'lstrcatnW' \
    -e 'lstrcatn' \
    -e '_fstrncat' \
    -e 'gets' \
    -e '_getts' \
    -e '_gettws' \
    -e 'IsBadWritePtr' \
    -e 'IsBadHugeWritePtr' \
    -e 'IsBadReadPtr' \
    -e 'IsBadHugeReadPtr' \
    -e 'IsBadCodePtr' \
    -e 'IsBadStringPtr' \
    -e 'memcpy' \
    -e 'RtlCopyMemory' \
    -e 'CopyMemory' \
    -e 'wmemcpy' {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 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/banned_function_calls_c.rb', line 173

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: '676',
    cwe_uri: 'https://cwe.mitre.org/data/definitions/676.html'
  }
rescue StandardError => e
  raise e
end