CVE-2021-20035 : What You Need to Know
Learn about CVE-2021-20035 affecting SonicWall's SMA100, allowing remote authenticated attackers to execute arbitrary commands and enabling DoS attacks. Find mitigation steps here.
A detailed overview of CVE-2021-20035 focusing on the vulnerability in SonicWall's SMA100 management interface, its impact, technical details, and mitigation steps.
Understanding CVE-2021-20035
This section delves into the specifics of the CVE-2021-20035 vulnerability affecting SonicWall's SMA100.
What is CVE-2021-20035?
The CVE-2021-20035 vulnerability involves improper neutralization of special elements in the SMA100 management interface, enabling a remote authenticated attacker to inject arbitrary commands as a 'nobody' user, potentially leading to a Denial of Service (DoS) attack.
The Impact of CVE-2021-20035
The impact of this vulnerability is significant as it allows attackers to execute unauthorized commands, compromising the security and availability of the affected systems.
Technical Details of CVE-2021-20035
This section provides a deeper insight into the technical aspects of CVE-2021-20035.
Vulnerability Description
The vulnerability arises from the improper handling of special elements in the SMA100 management interface, facilitating command injection by authenticated attackers.
Affected Systems and Versions
SonicWall's SMA100 versions 9.0.0.10-28sv and earlier, 10.2.0.7-34sv and earlier, and 10.2.1.0-17sv and earlier are confirmed to be affected by this vulnerability.
Exploitation Mechanism
Attackers with remote authenticated access can exploit this vulnerability to inject and execute arbitrary commands, posing a threat to system integrity.
Mitigation and Prevention
This section outlines key steps to mitigate and prevent exploitation of CVE-2021-20035.
Immediate Steps to Take
System administrators should apply security patches provided by SonicWall promptly to address the vulnerability and prevent potential attacks.
Long-Term Security Practices
Adopting strong access controls, regular security assessments, and monitoring for unauthorized access can enhance long-term security resilience.
Patching and Updates
Regularly updating and patching the SMA100 software to the latest versions is crucial to mitigate security risks and protect systems against known vulnerabilities.