CVE-2021-22855 : What You Need to Know

A critical vulnerability, CVE-2021-22855, has been identified in Soar Cloud System Co., Ltd.'s HR Portal. Attackers can exploit this flaw to execute arbitrary commands by sending malicious serialized objects.

Understanding CVE-2021-22855

This section delves into the details of the vulnerability, its impact, technical aspects, and mitigation strategies.

What is CVE-2021-22855?

The specific function of HR Portal of Soar Cloud System Co. allows the deserialization of any object, making it vulnerable to arbitrary code execution. Attackers can craft and send malicious serialized objects to trigger unauthorized commands.

The Impact of CVE-2021-22855

With a CVSS base score of 9.8 (Critical), this vulnerability has a high impact on confidentiality, integrity, and availability. An attacker can exploit the flaw remotely without requiring any privileges, leading to severe consequences.

Technical Details of CVE-2021-22855

Explore the technical aspects of the vulnerability, including its description, affected systems, and exploitation mechanism.

Vulnerability Description

The flaw lies in the HR Portal of Soar Cloud System Co., which accepts any type of object for deserialization, enabling attackers to execute arbitrary commands through crafted serialized objects.

Affected Systems and Versions

The vulnerability impacts HR Portal version 7.3.2020.1013 of Soar Cloud System Co., Ltd., making systems running this version susceptible to arbitrary code execution.

Exploitation Mechanism

Attackers can leverage the deserialization functionality of HR Portal to send malicious serialized objects containing arbitrary commands, leading to unauthorized code execution.

Mitigation and Prevention

Discover the steps to mitigate the risk posed by CVE-2021-22855 and how to prevent such vulnerabilities in the future.

Immediate Steps to Take

Users are advised to update HR Portal to version 7.3.2020.1110 immediately to patch the vulnerability and prevent exploitation by malicious actors.

Long-Term Security Practices

Implement secure coding practices, input validation mechanisms, and regular security audits to detect and address vulnerabilities like unauthorized deserialization.

Patching and Updates

Regularly monitor for security updates from Soar Cloud System Co., Ltd. and other software vendors to apply patches promptly and secure systems against emerging threats.