Cybersecurity specialists reported the detection of at least three vulnerabilities in various solutions from SonicWall, a technology company that develops multiple devices and applications for network security and control. According to the report, successful exploitation of these flaws would allow threat actors to perform privilege escalation attacks, injection of arbitrary commands, and uploading malicious files.
Below is a brief overview of the reported flaws in addition to their CVE identification keys and scores assigned according to the Common Vulnerability Scoring System (CVSS).
CVE-2021-20021: Inadequate privilege management in SonicWall On-premises Email Security 10.9.9 and Hosted Email Security 10.9.9 would allow threat actors to send specially designed HTTP requests to remote hosts for elevated system privileges.
This vulnerability received a score of 8.5/10.
CVE-2021-20022: Insufficient validation during the file upload process in SonicWall On-premises Email Security 10.9.9 and Hosted Email Security 10.9.9 would allow remote administrators to upload a malicious file and run it on the affected server.
The flaw received a CVSS score of 6.3/10 and its successful exploitation would allow attackers to fully compromise the vulnerable system.
CVE-2021-20020: Incorrect input validation in SonicWall GMS 9.3 would allow unauthenticated remote threat actors to pass specially designed data to perform an arbitrary command execution attack on the target system.
This is a high-severity vulnerability and received a CVSS score of 8.5/10.
While reported flaws can be exploited remotely by unauthenticated threat actors, cybersecurity experts point out that so far no attempts to exploit in real-world scenarios or the existence of a malware variant associated with the attacks have been reported so far.
Security patches are now available, so cybersecurity experts recommend updating as soon as possible. To learn more about information security risks, malware variants, vulnerabilities and information technologies, feel free to access the International Institute of Cyber Security (IICS) websites.
He is a well-known expert in mobile security and malware analysis. He studied Computer Science at NYU and started working as a cyber security analyst in 2003. He is actively working as an anti-malware expert. He also worked for security companies like Kaspersky Lab. His everyday job includes researching about new malware and cyber security incidents. Also he has deep level of knowledge in mobile security and mobile vulnerabilities.