CVE-2021-20021—SonicWall Email Security Improper Privilege Management Vulnerability

Vulnerability Name

SonicWall Email Security Improper Privilege Management Vulnerability

Description

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.

Known To Be Used in Ransomware Campaigns?

Ransomware Status:

KNOWN

Action

Apply updates per vendor instructions.

Additional Notes

• https://nvd.nist.gov/vuln/detail/CVE-2021-20021

Related Weaknesses

• CWE-306