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Novell Client 4.91 SP4 nwfs.sys Local Privilege Escalation

This module exploits a flaw in the nwfs.sys driver to overwrite data in kernel space. The corruption occurs while handling ioctl requests with code 0x1438BB, where a 0x00000009 dword is written to an arbitrary address. An entry within the HalDispatchTable is overwritten in order to execute arbitrary code when NtQueryIntervalProfile is called. The module has been tested successfully on Windows XP SP3 with Novell Client 4.91 SP4.

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Module Name

exploit/windows/local/novell_client_nwfs

Authors

  • Ruben Santamarta
  • juan vazquez <juan.vazquez [at] metasploit.com>

References

Targets

  • Automatic
  • Windows XP SP3

Platforms

  • windows

Architectures

  • x86

Reliability

Development

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/windows/local/novell_client_nwfs msf exploit(novell_client_nwfs) > show targets ...targets... msf exploit(novell_client_nwfs) > set TARGET <target-id> msf exploit(novell_client_nwfs) > show options ...show and set options... msf exploit(novell_client_nwfs) > exploit