CVE-2021-20601 Explained : Impact and Mitigation
Learn about CVE-2021-20601, an improper input validation vulnerability in Mitsubishi Electric devices, enabling attackers to manipulate device values and potentially cause system malfunctions. Find out about the impact, affected systems, and mitigation strategies.
An improper input validation vulnerability in various Mitsubishi Electric devices allows a remote unauthenticated attacker to manipulate device values, potentially causing system malfunctions.
Understanding CVE-2021-20601
This section provides insights into the vulnerability, its impact, technical details, and mitigation strategies.
What is CVE-2021-20601?
The CVE-2021-20601 vulnerability is characterized by improper input validation in Mitsubishi Electric devices, enabling attackers to exceed input range limits via malicious packets.
The Impact of CVE-2021-20601
The vulnerability poses a significant risk as malicious actors can alter device values beyond permissible limits, potentially leading to system malfunctions.
Technical Details of CVE-2021-20601
Explore the specifics of the vulnerability, including its description, affected systems, versions, and exploitation mechanisms.
Vulnerability Description
The vulnerability arises from improper input validation in various Mitsubishi Electric devices, allowing attackers to overwrite device values.
Affected Systems and Versions
Mitsubishi Electric devices affected include the GOT2000 series GT27, GT25, GT23, GT21 models, the GOT SIMPLE series GS21, and GT SoftGOT2000, across all versions.
Exploitation Mechanism
Remote unauthenticated attackers can exploit the vulnerability by sending malicious packets to devices, exceeding input range limits and rewriting values.
Mitigation and Prevention
Discover steps to mitigate the risk posed by CVE-2021-20601 and protect systems from potential exploitation.
Immediate Steps to Take
Immediately update devices to the latest firmware versions and implement network segmentation to limit exposure to untrusted entities.
Long-Term Security Practices
Engage in regular security audits, educate personnel on cybersecurity best practices, and monitor networks for any suspicious activities.
Patching and Updates
Regularly check for security advisories from Mitsubishi Electric, apply patches promptly, and conduct thorough testing to ensure system integrity.