CVE-2020-5821 Explained : Impact and Mitigation

Symantec Endpoint Protection (SEP) and Symantec Endpoint Protection Small Business Edition (SEP SBE) prior to 14.2 RU2 MP1 and 14.2.5569.2100 respectively may be susceptible to a DLL injection vulnerability.

Understanding CVE-2020-5821

Symantec Endpoint Protection (SEP) and Symantec Endpoint Protection Small Business Edition (SEP SBE) are affected by a DLL injection vulnerability, potentially allowing unauthorized code execution.

What is CVE-2020-5821?

CVE-2020-5821 is a DLL injection vulnerability in Symantec Endpoint Protection (SEP) and Symantec Endpoint Protection Small Business Edition (SEP SBE) versions prior to 14.2 RU2 MP1 and 14.2.5569.2100 respectively.

The Impact of CVE-2020-5821

This vulnerability could be exploited by attackers to execute malicious code in the context of the affected application, leading to unauthorized access, data breaches, and system compromise.

Technical Details of CVE-2020-5821

Symantec Endpoint Protection (SEP) and Symantec Endpoint Protection Small Business Edition (SEP SBE) are affected by a DLL injection vulnerability.

Vulnerability Description

DLL injection vulnerability allows an attacker to insert and execute malicious code within the application's process space.

Affected Systems and Versions

Products: Symantec Endpoint Protection (SEP) and Symantec Endpoint Protection Small Business Edition (SEP SBE)
Versions Affected: Prior to 14.2 RU2 MP1 and prior to 14.2.5569.2100 respectively

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting and executing malicious DLL files within the application's memory space, potentially gaining unauthorized access.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks posed by CVE-2020-5821.

Immediate Steps to Take

Update Symantec Endpoint Protection (SEP) and Symantec Endpoint Protection Small Business Edition (SEP SBE) to versions 14.2 RU2 MP1 and 14.2.5569.2100 respectively.
Monitor for any suspicious activities on the network.

Long-Term Security Practices

Implement regular security updates and patches for all software and applications.
Conduct security audits and penetration testing to identify and address vulnerabilities.

Patching and Updates

Apply the latest patches and updates provided by Symantec to address the DLL injection vulnerability in SEP and SEP SBE.