CVE-2021-3552 : Vulnerability Insights and Analysis
Learn about CVE-2021-3552, a Server-Side Request Forgery (SSRF) vulnerability in Bitdefender Endpoint Security Tools and Bitdefender GravityZone. Find out the impact, affected systems, and mitigation steps.
A Server-Side Request Forgery (SSRF) vulnerability in the EPPUpdateService component of Bitdefender Endpoint Security Tools and Bitdefender GravityZone allows unauthorized proxy requests. This CVE affects versions of Bitdefender Endpoint Security Tools before 6.6.27.390 and before 7.1.2.33, and Bitdefender GravityZone 6.24.1-1.
Understanding CVE-2021-3552
This section covers the key details of the CVE-2021-3552 vulnerability.
What is CVE-2021-3552?
CVE-2021-3552 is an SSRF vulnerability in Bitdefender Endpoint Security Tools and GravityZone that allows an attacker to proxy requests to a relay server.
The Impact of CVE-2021-3552
The vulnerability could be exploited by threat actors to bypass security restrictions and potentially access sensitive information stored on affected systems.
Technical Details of CVE-2021-3552
In this section, we delve into the technical aspects of CVE-2021-3552.
Vulnerability Description
The vulnerability arises due to insufficient validation on the regular expression in the EPPUpdateService config file, enabling SSRF attacks.
Affected Systems and Versions
Bitdefender Endpoint Security Tools versions prior to 6.6.27.390 and 7.1.2.33, as well as Bitdefender GravityZone 6.24.1-1, are impacted by this vulnerability.
Exploitation Mechanism
Attackers can exploit this flaw by sending malicious requests through the affected components to proxy requests to unauthorized servers.
Mitigation and Prevention
This section details the steps to mitigate and prevent exploitation of CVE-2021-3552.
Immediate Steps to Take
To mitigate the risk, users are advised to apply an automatic update to version 6.6.27.390 of Bitdefender Endpoint Security Tools.
Long-Term Security Practices
Implementing network segmentation, access controls, and regular security updates can help prevent SSRF attacks.
Patching and Updates
Regularly check for security updates and apply patches provided by Bitdefender to address vulnerabilities and enhance system security.