CVE-2021-20028
Published on August 4, 2021
Improper neutralization of a SQL Command leading to SQL Injection vulnerability impacting end-of-life Secure Remote Access (SRA) products, specifically the SRA appliances running all 8.x firmware and 9.0.0.9-26sv or earlier
Known Exploited Vulnerability
This SonicWall Secure Remote Access (SRA) SQL Injection Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. SonicWall Secure Remote Access (SRA) products contain an improper neutralization of a SQL Command leading to SQL injection.
The following remediation steps are recommended / required by April 18, 2022: The impacted product is end-of-life and should be disconnected if still in use.
Vulnerability Analysis
CVE-2021-20028 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors in an automatable fashion. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Weakness Type
What is a SQL Injection Vulnerability?
The software constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component.
CVE-2021-20028 has been classified to as a SQL Injection vulnerability or weakness.
Affected Versions
SonicWall SRA/SMA100:- Version 8.x firmware is affected.
- Version 9.0.0.9-26sv and earlier. is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.