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BackTrack 5 Cookbook by David De Smet, Willie Pritchett

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Physical access attacks

In this recipe, we will utilize SUCrack to perform a physical access password attack. SUCrack is a multithreaded tool that allows for brute force cracking of local user accounts via su. su is the Linux command that allows you to run commands as a "substitute user". This attack, though useful when you are unable to escalate privileges on a Linux/Unix system by other means, will fill up the log files rather quickly. So please be sure to clean the log files after completion.

SUCrack has several command options that we can use, as follows:

  • --help: This option allows you to view the help file for SUCrack.
  • -l: This option allows you to change the user whose login we are attempting to circumvent.
  • -s: This option allows you to set ...

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