# CVE-2021-20023: A SonicWall Email Security bug is being used in attacks

Status: Being used now (CISA KEV, added 2021-11-03)
Who: 
Do this: 

## Agent prompt (read-only)
Read-only check, change nothing, send nothing anywhere.
Is SonicWall SonicWall Email Security (CVE-2021-20023) installed or running on this machine or in this project?
1. Find every copy and its version (apps, packages, containers, lockfiles).
2. Compare each version against the vendor's fixed version for CVE-2021-20023. Quote the vendor page you used.
3. Report a table: where, version, fixed version, status (exposed / fixed / not installed / unsure).
4. List the exact update steps, but do not run them.

## Official description
SonicWall Email Security contains a path traversal vulnerability that allows a post-authenticated attacker to read files on the remote host. This vulnerability has known usage in a SonicWall Email Security exploit chain along with CVE-2021-20021 and CVE-2021-20022 to achieve privilege escalation.

## Sources
- https://nvd.nist.gov/vuln/detail/CVE-2021-20023
- https://nvd.nist.gov/vuln/detail/CVE-2021-20023

Generated by isitexploited.org from public sources. Verify version numbers against the vendor before acting.