CVE Vulnerabilities

CVE-2019-19363

Incorrect Permission Assignment for Critical Resource

Published: Jan 24, 2020 | Modified: Feb 10, 2023
CVSS 3.x
7.8
HIGH
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
4.6 MEDIUM
AV:L/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu

An issue was discovered in Ricoh (including Savin and Lanier) Windows printer drivers prior to 2020 that allows attackers local privilege escalation. Affected drivers and versions are: PCL6 Driver for Universal Print - Version 4.0 or later PS Driver for Universal Print - Version 4.0 or later PC FAX Generic Driver - All versions Generic PCL5 Driver - All versions RPCS Driver - All versions PostScript3 Driver - All versions PCL6 (PCL XL) Driver - All versions RPCS Raster Driver - All version

Weakness

The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.

Affected Software

Name Vendor Start Version End Version
Generic_pcl5_driver Ricoh - (including) - (including)
Pc_fax_generic_driver Ricoh - (including) - (including)
Pcl6_(pcl_xl)_driver Ricoh - (including) - (including)
Pcl6_driver_for_universal_print Ricoh 4.0 (including) 4.26 (excluding)
Postscript3_driver Ricoh - (including) - (including)
Ps_driver_for_universal_print Ricoh 4.0 (including) 4.26 (excluding)
Rpcs_driver Ricoh - (including) - (including)
Rpcs_raster_driver Ricoh - (including) - (including)

Potential Mitigations

  • Run the code in a “jail” or similar sandbox environment that enforces strict boundaries between the process and the operating system. This may effectively restrict which files can be accessed in a particular directory or which commands can be executed by the software.
  • OS-level examples include the Unix chroot jail, AppArmor, and SELinux. In general, managed code may provide some protection. For example, java.io.FilePermission in the Java SecurityManager allows the software to specify restrictions on file operations.
  • This may not be a feasible solution, and it only limits the impact to the operating system; the rest of the application may still be subject to compromise.
  • Be careful to avoid CWE-243 and other weaknesses related to jails.

References