rapid7/metasploit-framework — pull request #632 by 0a2940 (2012-07-21 11:25:33+00:00)
Title: added exploit for metasploit pcap_log priv-esc

Fairly self-explanatory, it's a priv-esc for metasploit. It someone runs the pcap_log plugin you can use this to elevate privileges, through a file-append bug which is then further leveraged by sending data that will appear in the file. I've opted for /etc/passwd, as modern crontabs refuse files that have errors, so it adds a metasploit superuser account.

Aside, the linux meterpreter is farly broken at present (confirmed with egypt)