CVE-2021-20023 — SonicWall Email Security Path Traversal Vulnerability
CVE-2021-20023: SonicWall Email Security Path Traversal Vulnerability
CISA Known Exploited Vulnerability (KEV)
| Vendor / project | SonicWall |
| Product | SonicWall Email Security |
| Date added | 2021-11-03 |
| Due date | 2021-11-17 |
| Ransomware campaign use | Known |
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.
Required action (CISA)
Apply updates per vendor instructions.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2021-20023
References
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-20023
- KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog