CVE-2019-7483: SonicWall SMA100 Directory Traversal Vulnerability

Vulnerability summary

CVE-2019-7483 is a high (CVSS 7.5) Path Traversal vulnerability in SonicWall SMA100. It is known to be exploited: CISA lists it, first on 28-03-2022. EPSS estimates a 4.01% chance of exploitation in the next 30 days, higher than 90.4% of scored vulnerabilities.

Timeline

1. 19-12-2019
   PublishedVulnerability first disclosed.
2. 28-03-2022
   Added to CISA KEVSonicWall SMA100 Directory Traversal Vulnerability
3. 18-04-2022
   CISA remediation dueApply updates per vendor instructions.
4. 21-10-2025
   Last modifiedVulnerability information updated.

Description

In SonicWall SMA100, an unauthenticated Directory Traversal vulnerability in the handleWAFRedirect CGI allows the user to test for the presence of a file on the server.

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.