CVE-2021-3554 : Exploit Details and Defense Strategies
Learn about CVE-2021-3554, a critical Improper Access Control vulnerability affecting Bitdefender Endpoint Security Tools for Linux, Unified Endpoint, and GravityZone.
A detailed overview of CVE-2021-3554, an Improper Access Control vulnerability found in Bitdefender products.
Understanding CVE-2021-3554
This section will cover the key details of the CVE-2021-3554 vulnerability.
What is CVE-2021-3554?
The CVE-2021-3554 vulnerability involves an Improper Access Control flaw in the patchesUpdate API of Bitdefender's Endpoint Security Tools for Linux, allowing an attacker to manipulate the remote address for pulling patches.
The Impact of CVE-2021-3554
The impact of this vulnerability is deemed critical with a base severity score of 9 according to the CVSS v3.1 metrics. It can result in high confidentiality, integrity, and availability impacts, affecting specific versions of Bitdefender products.
Technical Details of CVE-2021-3554
In this section, the technical aspects of CVE-2021-3554 will be explored.
Vulnerability Description
The vulnerability arises due to improper access control in the patchesUpdate API, enabling unauthorized manipulation of the patch retrieval process.
Affected Systems and Versions
The vulnerability affects multiple Bitdefender products including Endpoint Security Tools for Linux versions prior to 6.6.27.390 and 7.1.2.33, Unified Endpoint version less than 6.2.21.160, and GravityZone version prior to 6.24.1-1.
Exploitation Mechanism
The vulnerability can be exploited remotely with a high attack complexity and impacts security through unauthorized patch retrieval.
Mitigation and Prevention
This section will provide guidance on mitigating and preventing the CVE-2021-3554 vulnerability.
Immediate Steps to Take
Users are advised to apply an automatic update to version 6.6.27.390 for affected Bitdefender products to address the vulnerability.
Long-Term Security Practices
Implementing robust access control mechanisms and ensuring prompt patch management are essential for long-term security.
Patching and Updates
Regularly applying security patches and updates from Bitdefender is crucial for maintaining system security and preventing exploitation of known vulnerabilities.