CVE-2021-0070 : What You Need to Know

This article provides insights into CVE-2021-0070, highlighting the vulnerability in the BMC firmware for Intel(R) Server Board M10JNP2SB before version EFI BIOS 7215, BMC 8100.01.08 that could lead to an escalation of privilege.

Understanding CVE-2021-0070

CVE-2021-0070 is a vulnerability resulting from improper input validation in the BMC firmware of Intel(R) Server Board M10JNP2SB. This flaw may allow an unauthorized user to potentially elevate privileges through adjacent access.

What is CVE-2021-0070?

The vulnerability exists in the BMC firmware of Intel(R) Server Board M10JNP2SB before version EFI BIOS 7215, BMC 8100.01.08. It arises due to inadequate input validation, enabling an unauthenticated individual to exploit adjacent access and potentially escalate their privileges.

The Impact of CVE-2021-0070

If exploited, CVE-2021-0070 could result in an escalation of privilege, allowing a malicious actor to gain unauthorized elevated access to the affected system. This could lead to unauthorized control over sensitive functionalities and data.

Technical Details of CVE-2021-0070

The following technical aspects shed light on the specifics of CVE-2021-0070:

Vulnerability Description

The vulnerability stems from improper input validation in the BMC firmware of Intel(R) Server Board M10JNP2SB, specifically before version EFI BIOS 7215, BMC 8100.01.08. This flaw could be leveraged by an unauthenticated user to potentially enable an escalation of privilege via adjacent access.

Affected Systems and Versions

The impacted system is the Intel(R) Server Board M10JNP2SB running firmware versions earlier than EFI BIOS 7215 and BMC 8100.01.08. Systems using these versions are vulnerable to the exploitation of this privilege escalation vulnerability.

Exploitation Mechanism

The vulnerability may be exploited by an unauthorized user through adjacent access to the BMC firmware. By taking advantage of inadequate input validation, the attacker can potentially gain escalated privileges on the affected system.

Mitigation and Prevention

Understanding how to mitigate and prevent CVE-2021-0070 is crucial to safeguarding systems against this vulnerability.

Immediate Steps to Take

To address CVE-2021-0070, immediate actions such as applying security patches or updates released by Intel can help mitigate the vulnerability. Organizations should also restrict unauthorized access to the BMC firmware to prevent exploitation.

Long-Term Security Practices

Implementing robust security practices, such as regular vulnerability assessments, network segmentation, and user access controls, can enhance the overall security posture and reduce the risk of privilege escalation vulnerabilities.

Patching and Updates

Regularly monitoring for security updates and patches from Intel is essential to stay protected against CVE-2021-0070. Timely application of firmware updates can help address known vulnerabilities and strengthen the security of the Intel(R) Server Board M10JNP2SB.