CVE-2021-20739 : Exploit Details and Defense Strategies
Discover the impact of CVE-2021-20739, a critical OS Command Injection vulnerability in ELECOM CO.,LTD. products. Learn about affected systems, exploitation, and mitigation steps.
This CVE-2021-20739 pertains to a vulnerability found in ELECOM CO.,LTD. products including WRC-300FEBK, WRC-F300NF, WRC-733FEBK, WRH-300RD, WRH-300BK, WRH-300SV, WRH-300WH, WRH-H300WH, WRH-H300BK, WRH-300BK-S, and WRH-300WH-S. The vulnerability allows an unauthenticated network-adjacent attacker to execute an arbitrary OS command through unspecified vectors.
Understanding CVE-2021-20739
This section will delve into the essential aspects of the CVE-2021-20739 vulnerability.
What is CVE-2021-20739?
The CVE-2021-20739 vulnerability exists in ELECOM CO.,LTD. products, enabling unauthorized remote attackers to run arbitrary OS commands without authentication.
The Impact of CVE-2021-20739
The impact of this vulnerability is severe as it allows attackers to execute malicious commands on affected systems without the need for authentication.
Technical Details of CVE-2021-20739
In this section, we will explore the technical specifics of CVE-2021-20739.
Vulnerability Description
The vulnerability involves OS Command Injection, enabling attackers to execute unauthorized commands on susceptible products.
Affected Systems and Versions
ELECOM CO.,LTD. products including WRC-300FEBK, WRC-F300NF, WRC-733FEBK, WRH-300RD, WRH-300BK, WRH-300SV, WRH-300WH, WRH-H300WH, WRH-H300BK, WRH-300BK-S, and WRH-300WH-S are impacted across all versions.
Exploitation Mechanism
The vulnerability allows unauthenticated network-adjacent attackers to execute malicious OS commands through unspecified vectors.
Mitigation and Prevention
This section covers measures to mitigate the risks associated with CVE-2021-20739.
Immediate Steps to Take
Immediate action involves applying relevant patches and updates, monitoring network traffic, and implementing strict access controls.
Long-Term Security Practices
Incorporating regular security assessments, network segmentation, and keeping systems up-to-date can enhance long-term security.
Patching and Updates
Regularly check for security patches and updates provided by ELECOM CO.,LTD. to address the CVE-2021-20739 vulnerability.