PrinterLogic has released security updates to address nine vulnerabilities in Web Stack and Virtual Appliance, the most severe ones, tracked as CVE-2021-42631, CVE-2021-42635, and CVE-2021-42638, are rated as high severity flaws (CVSS base score of 8.1).
Below is the list of vulnerabilities fixed by Paranoids:
An attacker can trigger these three vulnerabilities to remotely execute arbitrary code on vulnerable systems.
CVE-2021-42631 is an object injection flaw, CVE-2021-42635 is a hardcoded APP_KEY issue, while CVE-2021-42638 is miscellaneous command injections. PrinterLogic pointed out that most of the installs are not internet-facing.
In order to exploit the PrinterLogic Web Stack server, attackers would need a privileged network position, such as access through a VPN or another vulnerability (i.e. SSRF) in an appliance on the edge.
Experts did not disclose the component affected by the vulnerability in order to give customers some time to address the flaws.
The timeline for the flaws is:
The Paranoids researchers noted that the majority of PrinterLogic installations are not directly accessible from the Internet.
The flaws impact all PrinterLogic Web Stack version 220.127.116.11 SP9 and earlier, and Virtual Appliance version 20.0.1304 and earlier, when used with macOS or Linux endpoint client software.
PrinterLogic addressed the issue with the release of Web Stack version 18.104.22.168-SP10, no client software updates are required for Virtual Appliance. .
(SecurityAffairs – hacking, Printer Management Suite)