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Samba is_known_pipename() Arbitrary Module Load

This module triggers an arbitrary shared library load vulnerability in Samba versions 3.5.0 to 4.4.14, 4.5.10, and 4.6.4. This module requires valid credentials, a writeable folder in an accessible share, and knowledge of the server-side path of the writeable folder. In some cases, anonymous access combined with common filesystem locations can be used to automatically exploit this vulnerability.

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Module Name



  • steelo <knownsteelo [at]>
  • hdm <x [at]>
  • bcoles <bcoles [at]>



  • Automatic (Interact)
  • Automatic (Command)
  • Linux x86
  • Linux x86_64
  • Linux ARM (LE)
  • Linux ARM64
  • Linux MIPS
  • Linux MIPSLE
  • Linux MIPS64
  • Linux MIPS64LE
  • Linux PPC
  • Linux PPC64
  • Linux PPC64 (LE)
  • Linux SPARC
  • Linux SPARC64
  • Linux s390x


  • linux
  • unix


  • cmd
  • x86
  • x64
  • armle
  • aarch64
  • mips
  • mipsle
  • mips64
  • mips64le
  • ppc
  • ppc64
  • ppc64le
  • sparc
  • sparc64
  • zarch



Module Options

To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':

msf > use exploit/linux/samba/is_known_pipename msf exploit(is_known_pipename) > show targets ...targets... msf exploit(is_known_pipename) > set TARGET <target-id> msf exploit(is_known_pipename) > show options and set options... msf exploit(is_known_pipename) > exploit

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