PJL Explorer

PJL Explorer is an online file exploring tool for the printer job language (PJL) developed by HP. In order to find suitable printers for the PJL Explorer, use a free Shodan account and query printers responding to the PJL at port 9100. PJL Explorer is the first implementation exploiting a vulnerability in HP Color LaserJet 4650 and 4700 printers allowing to retrieve the web server administration password in plain text.

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