CVE-2021-0157 : Vulnerability Insights and Analysis
Learn about CVE-2021-0157, a vulnerability in Intel(R) Processors BIOS firmware allowing privilege escalation via local access. Stay secure by following mitigation steps.
A vulnerability has been identified in the BIOS firmware of some Intel(R) Processors that could allow a privileged user to potentially escalate privileges via local access.
Understanding CVE-2021-0157
This CVE refers to insufficient control flow management in the BIOS firmware of Intel(R) Processors, leading to a potential privilege escalation.
What is CVE-2021-0157?
The CVE-2021-0157 vulnerability arises from a lack of proper control flow management in the BIOS firmware of certain Intel(R) Processors. This flaw enables a privileged user to exploit it via local access, potentially allowing for an escalation of privileges.
The Impact of CVE-2021-0157
The impact of this vulnerability is significant as it could be exploited by a privileged user to gain higher levels of access, posing a threat to the security and integrity of affected systems.
Technical Details of CVE-2021-0157
This section delves into the technical aspects of the CVE, providing insights into the vulnerability, affected systems, and the exploitation mechanism.
Vulnerability Description
The vulnerability stems from insufficient control flow management in the BIOS firmware, creating an opportunity for privilege escalation through local access.
Affected Systems and Versions
The affected systems include Intel(R) Processors with specific firmware versions. Users are advised to refer to the provided references for detailed version information.
Exploitation Mechanism
The privileged user can exploit the lack of control flow management in the BIOS firmware to escalate their privileges locally, potentially compromising the security of the system.
Mitigation and Prevention
In this section, recommendations are provided to mitigate the risks associated with CVE-2021-0157 and prevent potential exploits.
Immediate Steps to Take
Immediate steps include monitoring for official patches or updates from Intel and applying them promptly to affected systems to address the vulnerability.
Long-Term Security Practices
Implementing robust security practices such as regular security audits, access controls, and firmware updates can help enhance the overall security posture and prevent similar vulnerabilities.
Patching and Updates
Users are strongly advised to regularly check for security advisories from Intel, apply patches promptly, and keep their BIOS firmware up to date to protect against CVE-2021-0157.