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Critical vulnerabilities in HP printer models

Critical vulnerabilities in HP printer models

Ghost offers white toner cartridges for many printers, allowing you to print in white on colored or black surfaces. With our various transfer methods, you can print on almost any surface with Ghost White Toner. Whether you want to print on black paper or a black t-shirt, Ghost White Toner makes it possible and opens new ways without limitations.

As Ghost is the only supplier offering white toner cartridges for HP printers, we would like to draw your attention to a news item from HP in this blog post.

HP is warning about a critical vulnerability in more than 200 printer models, three of which were rated “critical” and one of which was rated “high”. Models from the LaserJet, OfficeJet, DeskJet, DesignJet, PageWide and Digital Sender series are affected by the four vulnerabilities.

In the recent security alerts HPSBPI03780 and HPSBPI03781, HP summarizes that printers may be vulnerable to:

  • Information disclosure
  • Denial of services
  • Remote code execution (RCE)
  • Buffer overflows when using Link-Local Multicast Name Resolution (LLMNR)

In the meantime, HP has released corresponding firmware updates for the printers and multifunction devices, closing these critical security vulnerabilities. Depending on the printer model, there is the option to completely disable the incorrectly implemented LLMNR protocol and/or a corrected firmware available for download. A list of affected HP products can be found in the two security alerts HPSBPI03780 and HPSBPI03781.

Printers compatible with Ghost

For printers compatible with Ghost we recommend just to disable the incorrectly implementen LLMNR protocol and NOT do a firmware update. In the past, we have experienced that updated firmware can cause chip problems in both the original and Ghost toners.

To disable LLMNR in the network settings, refer to the following links

 

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