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Old 30th November 2011
J65nko J65nko is offline
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Default HP Laserjet printer security problems

From http://h-online.com/-1387374

Quote:
HP's printer division has confirmed a potential vulnerability in older Laserjet printers that allows attackers to install specially crafted firmware on devices. The issue exists because updates for older models are deployed without digital signatures, which means that the printers will accept and install any firmware. In certain circumstances, the software can also be updated remotely, allowing attackers to gain control of a printer by injecting code.
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