CVE-2021-33126 Explained : Impact and Mitigation
Learn about CVE-2021-33126, a security vulnerability in Intel(R) 700 and 722 Series Ethernet Controllers allowing denial of service attacks. Find mitigation strategies and prevention steps.
This article provides an overview of CVE-2021-33126, discussing the vulnerability, its impact, technical details, and mitigation strategies.
Understanding CVE-2021-33126
CVE-2021-33126 involves improper access control in the firmware of certain Intel(R) 700 and 722 Series Ethernet Controllers and Adapters, potentially leading to denial of service attacks.
What is CVE-2021-33126?
The vulnerability in Intel(R) 700 and 722 Series Ethernet Controllers and Adapters before versions 8.5 and 1.5.5 allows privileged users to enable denial of service via local access, posing a security risk.
The Impact of CVE-2021-33126
Exploitation of this vulnerability could result in denial of service attacks by malicious privileged users, disrupting network operations and causing service outages.
Technical Details of CVE-2021-33126
The technical aspects of CVE-2021-33126 include a description of the vulnerability, affected systems/versions, and the exploitation mechanism.
Vulnerability Description
The vulnerability arises from improper access control in the firmware of Intel(R) 700 and 722 Series Ethernet Controllers and Adapters, allowing privileged users to potentially trigger denial of service attacks.
Affected Systems and Versions
Systems running versions of Intel(R) 700 and 722 Series Ethernet Controllers and Adapters prior to 8.5 and 1.5.5 are vulnerable to exploitation of this security flaw.
Exploitation Mechanism
By exploiting the improper access control, privileged users can locally enable denial of service, impacting the availability and functionality of affected systems.
Mitigation and Prevention
This section outlines immediate steps to take and long-term security practices to mitigate the risks associated with CVE-2021-33126.
Immediate Steps to Take
Immediate actions include applying security patches, restricting access privileges, and monitoring network activity to detect any suspicious behavior.
Long-Term Security Practices
Long-term strategies involve regular security audits, employee training on secure practices, and maintaining up-to-date firmware and software versions.
Patching and Updates
It is crucial to promptly apply patches provided by Intel for affected products to address the vulnerability and enhance system security.