module

Novell Client 4.91 SP4 nwfs.sys Local Privilege Escalation

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Disclosed
Jun 26, 2008
Created
May 30, 2018

Description

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.

Authors

Ruben Santamarta
juan vazquez juan.vazquez@metasploit.com

Platform

Windows

Architectures

x86

References

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
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