CVE-2021-42631 Explained : Impact and Mitigation
Learn about CVE-2021-42631, a vulnerability in PrinterLogic Web Stack that allows pre-auth remote code execution. Find out how to mitigate the risk and apply necessary security measures.
PrinterLogic Web Stack versions 19.1.1.13 SP9 and below allow pre-auth remote code execution due to deserialization of attacker-controlled data.
Understanding CVE-2021-42631
What is CVE-2021-42631?
PrinterLogic Web Stack versions 19.1.1.13 SP9 and below are vulnerable to remote code execution prior to authentication, triggered by deserializing malicious input.
The Impact of CVE-2021-42631
This vulnerability allows attackers to execute arbitrary code remotely on affected systems, potentially leading to system compromise and unauthorized access.
Technical Details of CVE-2021-42631
Vulnerability Description
The vulnerability in PrinterLogic Web Stack arises from the incorrect handling of deserialization, allowing threat actors to execute code remotely.
Affected Systems and Versions
- Product: PrinterLogic Web Stack
- Vendor: PrinterLogic
- Versions affected: 19.1.1.13 SP9 and earlier
Exploitation Mechanism
The vulnerability is exploited by sending specially crafted serialized data to the application, which, when deserialized, triggers the remote code execution.
Mitigation and Prevention
Immediate Steps to Take
- Apply the security patches provided by PrinterLogic promptly.
- Monitor network traffic for any suspicious activity.
- Restrict access to the affected systems to authorized personnel only.
Long-Term Security Practices
- Conduct regular security assessments and audits of the system.
- Keep all software and applications updated with the latest security patches.
- Implement network segmentation to contain potential intrusions.
Patching and Updates
Ensure the PrinterLogic Web Stack is updated to a version that includes the security patches released by the vendor.