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Kemp LoadMaster Local sudo privilege escalation

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Kemp LoadMaster Local sudo privilege escalation

Disclosed
03/19/2024
Created
05/10/2024

Description

This module abuses a feature of the sudo command on Progress Kemp LoadMaster. Certain binary files are allowed to automatically elevate with the sudo command. This is based off of the file name. Some files have this permission are not write-protected from the default 'bal' user. As such, if the file is overwritten with an arbitrary file, it will still auto-elevate. This module overwrites the /bin/loadkeys file with another executable.

Author(s)

  • Dave Yesland with Rhino Security Labs
  • bwatters-r7

Platform

Linux,Unix

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/linux/local/progress_kemp_loadmaster_sudo_privesc_2024
msf exploit(progress_kemp_loadmaster_sudo_privesc_2024) > show targets
    ...targets...
msf exploit(progress_kemp_loadmaster_sudo_privesc_2024) > set TARGET < target-id >
msf exploit(progress_kemp_loadmaster_sudo_privesc_2024) > show options
    ...show and set options...
msf exploit(progress_kemp_loadmaster_sudo_privesc_2024) > exploit

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