CVE-2019-19363 : Security Advisory and Response

A vulnerability has been identified in Ricoh Windows printer drivers, including Savin and Lanier, before 2020, allowing local privilege escalation for attackers.

Understanding CVE-2019-19363

This CVE pertains to a security flaw in various Ricoh Windows printer drivers that could be exploited by attackers to escalate privileges locally.

What is CVE-2019-19363?

The vulnerability in Ricoh Windows printer drivers enables attackers to gain local privilege escalation, potentially leading to unauthorized access and control of affected systems.

The Impact of CVE-2019-19363

The vulnerability poses a significant risk as it allows attackers to elevate their privileges on the system, potentially leading to unauthorized access to sensitive information and control over the affected devices.

Technical Details of CVE-2019-19363

This section provides detailed technical information about the CVE-2019-19363 vulnerability.

Vulnerability Description

The vulnerability in Ricoh Windows printer drivers allows local privilege escalation for attackers, impacting various driver versions including PCL6, PS, PC FAX, Generic PCL5, RPCS, PostScript3, PCL6 (PCL XL), and RPCS Raster.

Affected Systems and Versions

The following Ricoh Windows printer driver versions are affected:

PCL6 Driver for Universal Print - Version 4.0 or newer
PS Driver for Universal Print - Version 4.0 or newer
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 versions

Exploitation Mechanism

Attackers can exploit this vulnerability in Ricoh Windows printer drivers to escalate their privileges locally, potentially gaining unauthorized access to the system.

Mitigation and Prevention

Protecting systems from CVE-2019-19363 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Ricoh Windows printer drivers to the latest versions.
Monitor for any suspicious activities on the network.
Implement the principle of least privilege to restrict user access.

Long-Term Security Practices

Regularly update and patch all software and drivers on the network.
Conduct security training for employees to raise awareness of potential threats.

Patching and Updates

Ensure that all Ricoh Windows printer drivers are regularly updated with the latest patches to mitigate the risk of local privilege escalation.