HP has issued firmware patches to fix a security flaw which allowed attackers to perform remote code execution attacks on enterprise-grade printers.
FoxGlove Security researchers issued an advisory disclosing the technical details of the bug, CVE-2017-2750, earlier this week.
The team tested out HP’s PageWide Enterprise Color MFP 586 and the HP Color LaserJet Enterprise M553 models, and found they were able to reverse engineer “.BDL” (bundle) extension files found in HP’s firmware.
After reverse engineering the code, the researchers were able to craft and upload crafted firmware files to discover where signature validation was taking place in order to bypass these protections.
Read more…
Source: ZDNet