Assessment
Why it matters
CISA lists this vulnerability as known to be exploited; exploitation is confirmed; EPSS is 4.0%; technical severity is CVSS 7.5.
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.
Who should care
- Teams operating Sma 100 Firmware, SMA100
- Vulnerability and exposure management teams
- Security operations teams monitoring exploitation activity
Response plan
What I would do
- Confirm whether Sma 100 Firmware, SMA100 is present in the environment.
- Identify affected versions and establish whether vulnerable services are exposed or reachable.
- SonicWall Security advisory SNWLID 2019 0018
- Review relevant security telemetry for evidence of attempted or successful exploitation.
- Document the remediation decision and track it to verified completion.
Treatment intelligence
Remediation intelligence
Vendor sources are listed before government and third-party guidance. Confirm product applicability and change prerequisites before deployment.
Verification noteAutomated link verification has not completed for this guidance yet.
Advisory
Technical details
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CWE
- CWE-22
- Affected versions
- SonicWall Sma 100 Firmware (End Excluding 9.0.0.4); SonicWall SMA100
- Fixed versions
- SonicWall Sma 100 Firmware (Fixed from 9.0.0.4)
- Published
- 19 December 2019
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
Signal timeline
- CVE published
- Added to CISA KEV
- Latest EPSS score: 4.0%
- Signal calculated at 67