CVE-2021-20021 — SonicWall Email Security Improper Privilege Management Vulnerability
2021-11-03 • CISA Known Exploited Vulnerability
[event] SonicWall Email Security contains an improper privilege management vulnerability that allows an attacker to create an administrative account by sending a crafted HTTP request to the remote host. This vulnerability has known usage in a SonicWall Email Security exploit chain along with CVE-2021-20022 and CVE-2021-20023 to achieve privilege escalation.
> AFFECTED SOFTWARE
| Field | Value |
|---|---|
| Vendor | SonicWall |
| Product | SonicWall Email Security |
| CWE | CWE-306 |
| CVE ID | CVE-2021-20021 |
| Date Added | 2021-11-03 |
| Due Date | 2021-11-17 |
| Ransomware Campaign | Known — this vulnerability has been leveraged in ransomware campaigns |
> MITIGATION
Apply updates per vendor instructions.
Due Date: 2021-11-17