Description
This module exploits an arbitrary command execution vulnerability in tnftp's handling of the resolved output filename - called "savefile" in the source - from a requested resource.
If tnftp is executed without the -o command-line option, it will resolve the output filename from the last component of the requested resource.
If the output filename begins with a "|" character, tnftp will pass the fetched resource's output to the command directly following the "|" character through the use of the popen() function.
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/unix/http/tnftp/savefilemsf undefined(savefile) > show actions ...actions...msf undefined(savefile) > set ACTION < action-name >msf undefined(savefile) > show options ...show and set options...msf undefined(savefile) > runPrioritise with Active Threat Intelligence
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