Printed from http://www.electronista.com

HP claims LaserJet exploit 'sensational,' plans fix

updated 05:25 pm EST, Tue November 29, 2011

Deny forced firmware update can cause fires

HP has issued a statement claiming that reports of a major LaserJet security exploit was "sensational and inaccurate." The company emphatically claimed that speculation that devices could catch fire due to a firmware change are false. While downplaying the risk, HP is, at the same time, working on a firmware fix for the problem.

Talk of physically damaging the printers through hacks was both unreported and technically impossible, HP said. Each LaserJet has a thermal breaker, a protective device designed to prevent a printer's fuser from overheating or potentially causing a fire. There has been some speculation that, due to a security issue, the breaker could be compromised by an unauthorized firmware upgrade, causing the printer to burst into flames.

The security threat was real, however. A printer on a public network or directly linked to the Internet without a firewall is vulnerable to malicious firmware pushed to the printer. It's also possible, in the instance of Linux or Mac environments, for a specially formatted corrupt print job to trigger a firmware upgrade. HP insisted that no such breaches have happened so far.

HP didn't say when the firmware upgrade would be available. In the meantime, they are recommending to LaserJet owners that they placing printers behind a firewall, which includes most home routers. They also suggest, where possible, disabling the remote firmware upload capability on an exposed printer.



By Electronista Staff
Post tools:

TAGS :

toggle

Comments

Login Here

Not a member of the MacNN forums? Register now for free.

toggle

Network Headlines

toggle

Most Popular

Sponsor

Recent Reviews

Razer Kraken Pro headset

Gaming headphones are a challenge to get right, for a long list of reasons that are unique to the consumer buying them. Some shoppers ...

Patriot Aero Wireless Mobile Drive

Regardless of how large a tablet you buy, you always want more space. There's always one more movie or another album you'd cram on, if ...

Patriot Fuel+ 6000 and 9000mAh batteries

Mobile device batteries are better than they used to be, but there's always a scenario where users could use more juice. Upgrade manuf ...

Sponsor

toggle

Most Commented

 
toggle

Popular News