CVE-2021-35971 Explained : Impact and Mitigation
Learn about CVE-2021-35971 affecting Veeam Backup and Replication 10 and 11 versions, which mishandle deserialization during Microsoft .NET remoting. Find out the impact, technical details, and mitigation steps.
Veeam Backup and Replication versions 10 before 10.0.1.4854 P20210609 and 11 before 11.0.0.837 P20210507 are vulnerable to mishandling deserialization during Microsoft .NET remoting.
Understanding CVE-2021-35971
This section will cover what CVE-2021-35971 is, its impact, technical details, mitigation, and prevention.
What is CVE-2021-35971?
CVE-2021-35971 involves Veeam Backup and Replication mishandling deserialization during Microsoft .NET remoting.
The Impact of CVE-2021-35971
The vulnerability allows attackers to potentially exploit the deserialization process to execute arbitrary code remotely.
Technical Details of CVE-2021-35971
Learn more about the vulnerability, affected systems, versions, and exploitation mechanism.
Vulnerability Description
Veeam Backup and Replication versions 10 and 11 are affected by a deserialization flaw in Microsoft .NET remoting.
Affected Systems and Versions
Versions 10 before 10.0.1.4854 P20210609 and 11 before 11.0.0.837 P20210507 are impacted by this vulnerability.
Exploitation Mechanism
The vulnerability arises due to a mishandling of deserialization during Microsoft .NET remoting in Veeam Backup and Replication.
Mitigation and Prevention
Discover the necessary steps to secure your systems and prevent exploitation.
Immediate Steps to Take
Users are advised to update Veeam Backup and Replication to versions 10.0.1.4854 P20210609 and 11.0.0.837 P20210507 or later.
Long-Term Security Practices
Maintain good security practices, including network segmentation, least privilege access, and regular security audits.
Patching and Updates
Regularly check for updates from Veeam and apply patches promptly to fix known vulnerabilities.