HP LaserJet Printers Unauthorized Access to Files Vulnerability
12 Jan. 2011
Summary
A potential security vulnerability has been identified with HP LaserJet MFP printers, HP Color LaserJet MFP printers, and certain HP LaserJet printers.
Vulnerable Systems:
* HP LaserJet MFP printers (all models with Printer Job Language (PJL) support)
* HP Color LaserJet MFP printers (all models with Printer Job Language (PJL) support)
* HP LaserJet 4100 series
* HP LaserJet 4200 series
* HP LaserJet 4300 series
* HP LaserJet 5100 series
* HP LaserJet 8150 series
* HP LaserJet 9000 series
Files within the printer can be accessed using the Printer Job Language (PJL) interface to exploit a directory traversal vulnerability.
Workaround:
The vulnerability can be avoided by either one of the following actions:
1) disable file system access via the PJL interface
2) set a PJL password