Vulnerability · Published Dec 8, 2021 · Assigned by sonicwall
CVE-2021-20039
High 8.8
In plain English
A high-severity OS command injection in SonicWall SMA100 from SonicWall. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 78.7% (higher than 99.6% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit.
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)78.7%top 0.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack tooling1Metasploit
Official description
Improper neutralization of special elements in the SMA100 management interface '/cgi-bin/viewcert' POST http method allows a remote authenticated attacker to inject arbitrary commands as a 'nobody' user. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| SonicWall | SonicWall SMA100 | 9.0.0.11-31sv and earlier10.2.0.8-37sv and earlier10.2.1.1-19sv and earlier10.2.1.2-24sv and earlier |
Weakness: CWE-78 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H