CVE-2021-21875 : What You Need to Know
Discover the critical CVE-2021-21875 impacting Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU), enabling remote attackers to execute arbitrary commands. Learn about the impact, technical details, and mitigation strategies.
A critical vulnerability with a CVSS base score of 9.1 has been identified in Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU) that could allow arbitrary command execution through a specially-crafted HTTP request.
Understanding CVE-2021-21875
This CVE highlights a severe risk in Lantronix products due to improper neutralization of special elements in an OS command, potentially leading to OS command injection.
What is CVE-2021-21875?
CVE-2021-21875 exposes a flaw where a malicious actor, through an authenticated HTTP request, can execute arbitrary commands via the EC keypasswd parameter, posing a significant security threat.
The Impact of CVE-2021-21875
With a CVSS base score of 9.1 and critical severity, this vulnerability can have high impacts on confidentiality, integrity, and availability of affected systems. The attacker can exploit this flaw remotely over the network.
Technical Details of CVE-2021-21875
This section delves into the specifics of the vulnerability, affected systems, and the exploitation mechanism.
Vulnerability Description
The vulnerability lies in the EC keypasswd parameter of Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU) which can be abused to execute arbitrary commands through a crafted HTTP request.
Affected Systems and Versions
The impacted product is Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU) which is vulnerable to this exploit.
Exploitation Mechanism
An attacker can exploit this vulnerability by sending a specially-crafted HTTP request to trigger the execution of arbitrary commands, potentially causing serious damage.
Mitigation and Prevention
To safeguard systems from CVE-2021-21875, immediate actions and long-term security practices are essential.
Immediate Steps to Take
It is crucial to apply security patches and updates provided by Lantronix promptly. Additionally, monitoring network traffic for any suspicious activities is recommended.
Long-Term Security Practices
Implementing least privilege access, network segmentation, and regular security audits can help prevent similar vulnerabilities and enhance overall cybersecurity posture.
Patching and Updates
Regularly check for security advisories from Lantronix and apply patches to mitigate the risk posed by CVE-2021-21875.