CVE-2020-26122 : Vulnerability Insights and Analysis
Discover the critical vulnerability in Inspur NF5266M5 and server M5 devices allowing remote code execution. Learn how to mitigate the risk and secure your systems.
Inspur NF5266M5 and other server M5 devices are vulnerable to remote code execution due to weaknesses in the Baseboard Management Controller (BMC) program.
Understanding CVE-2020-26122
This CVE identifies a critical vulnerability in Inspur NF5266M5 and similar server M5 devices that allows attackers to execute remote code by exploiting administrator privileges.
What is CVE-2020-26122?
The vulnerability arises from the BMC program's inadequate firmware checks and the absence of a signature verification mechanism. Attackers with administrator rights can manipulate the BMC by injecting malicious code into the firmware, circumventing the existing verification process to upgrade the BMC.
The Impact of CVE-2020-26122
The exploitation of this vulnerability can lead to unauthorized control of the BMC, potentially compromising the entire server and its data.
Technical Details of CVE-2020-26122
This section delves into the specific technical aspects of the CVE.
Vulnerability Description
The vulnerability allows remote code execution on Inspur NF5266M5 and other server M5 devices through the BMC program, enabling attackers to take control of the system.
Affected Systems and Versions
- Inspur NF5266M5 through version 3.21.2
- Other server M5 devices
Exploitation Mechanism
- Attackers exploit administrator privileges to insert malicious code into the BMC firmware.
- The lack of signature verification enables the bypassing of security checks during BMC upgrades.
Mitigation and Prevention
Protecting systems from CVE-2020-26122 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches provided by Inspur promptly.
- Restrict network access to BMC interfaces.
- Monitor BMC activity for suspicious behavior.
Long-Term Security Practices
- Regularly update firmware and software to address security vulnerabilities.
- Implement strong access controls and authentication mechanisms.
- Conduct security audits and assessments periodically.
Patching and Updates
- Stay informed about security advisories from Inspur.
- Apply firmware updates and security patches as soon as they are released.