CVE-2021-20740 : What You Need to Know
Learn about CVE-2021-20740 affecting Hitachi Virtual File Platform & NEC Storage M Series NAS Gateway. Find out the impact, technical details, affected systems, exploitation, and mitigation steps.
Hitachi Virtual File Platform Versions prior to 5.5.3-09 and Versions prior to 6.4.3-09, and NEC Storage M Series NAS Gateway Nh4a/Nh8a versions prior to FOS 5.5.3-08(NEC2.5.4a) and Nh4b/Nh8b, Nh4c/Nh8c versions prior to FOS 6.4.3-08(NEC3.4.2) have a vulnerability that allows remote authenticated attackers to execute arbitrary OS commands with root privileges.
Understanding CVE-2021-20740
This CVE affects Hitachi Virtual File Platform and NEC Storage M Series NAS Gateway which uses Hitachi Virtual File Platform.
What is CVE-2021-20740?
The CVE-2021-20740 vulnerability in Hitachi Virtual File Platform and NEC Storage M Series NAS Gateway allows remote authenticated attackers to run arbitrary OS commands with root privileges.
The Impact of CVE-2021-20740
The impact of CVE-2021-20740 is severe as it enables attackers to execute malicious commands with elevated privileges, potentially leading to unauthorized access, data theft, or system compromise.
Technical Details of CVE-2021-20740
This section provides the technical details of the vulnerability.
Vulnerability Description
The vulnerability in Hitachi Virtual File Platform and NEC Storage M Series NAS Gateway allows for the execution of unauthorized OS commands with root-level access by remote authenticated attackers.
Affected Systems and Versions
Hitachi Virtual File Platform Versions prior to 5.5.3-09 and Versions prior to 6.4.3-09, and NEC Storage M Series NAS Gateway Nh4a/Nh8a versions prior to FOS 5.5.3-08(NEC2.5.4a) and Nh4b/Nh8b, Nh4c/Nh8c versions prior to FOS 6.4.3-08(NEC3.4.2) are affected by this vulnerability.
Exploitation Mechanism
The exploitation of this vulnerability involves remote authenticated attackers leveraging unspecified vectors to execute arbitrary OS commands with root privileges.
Mitigation and Prevention
To mitigate the risks associated with CVE-2021-20740, users should take immediate steps and adopt long-term security measures.
Immediate Steps to Take
Immediately apply security patches provided by Hitachi and NEC Corporation to address the vulnerability.
Long-Term Security Practices
Implement strong access controls, regularly update systems, conduct security assessments, and monitor for any unusual activities to enhance overall cybersecurity.
Patching and Updates
Regularly check for security updates, patches, and advisories from the official vendors to protect systems from potential security threats.