CVE-2021-30642 : Vulnerability Insights and Analysis

A critical input validation flaw in Symantec Security Analytics versions 7.2 prior to 7.2.7, 8.1 prior to 8.1.3-NSR3, and 8.2 prior to 8.2.1-NSR2 or 8.2.2 has been identified. This vulnerability can be exploited by a remote, unauthenticated attacker to execute arbitrary operating system commands on the target system with elevated privileges.

Understanding CVE-2021-30642

This section will delve into the specifics of CVE-2021-30642 to provide a comprehensive understanding of the issue.

What is CVE-2021-30642?

The CVE-2021-30642 vulnerability involves an OS command injection flaw in the Symantec Security Analytics web UI, enabling malicious actors to run arbitrary commands on the target system remotely.

The Impact of CVE-2021-30642

The impact of this vulnerability is severe as it allows attackers to execute unauthorized OS commands with elevated privileges, potentially leading to further compromise of the system.

Technical Details of CVE-2021-30642

This section will outline the technical aspects of CVE-2021-30642, including a detailed description, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability stems from improper input validation in Symantec Security Analytics web UI versions 7.2 to 8.2, facilitating the execution of arbitrary OS commands remotely.

Affected Systems and Versions

Symantec Security Analytics versions 7.2 prior to 7.2.7, 8.1 prior to 8.1.3-NSR3, and 8.2 prior to 8.2.1-NSR2 or 8.2.2 are impacted by this vulnerability.

Exploitation Mechanism

Remote, unauthenticated attackers can exploit this vulnerability by sending malicious input to the targeted system through the Symantec Security Analytics web UI, enabling the execution of unauthorized OS commands.

Mitigation and Prevention

In this section, we will discuss the immediate steps to take to mitigate the risks posed by CVE-2021-30642 and the long-term security practices to enhance system defenses.

Immediate Steps to Take

It is recommended to apply the latest security patches provided by Symantec to address the vulnerability. Additionally, restricting access to the Symantec Security Analytics web UI can help prevent unauthorized exploitation.

Long-Term Security Practices

Implementing strict input validation routines and regular security audits can fortify the system against potential OS command injection attacks. Educating users on best practices for secure system usage is also crucial for long-term security.

Patching and Updates

Regularly monitor for security updates from Symantec and apply patches promptly to ensure the system is protected against known vulnerabilities.