CVE-2019-7483 SonicWall SMA100: file path flaw
In plain words: The program can be tricked into reading or writing files outside the folder it should stay in. Leaks files such as passwords and settings, or overwrites important ones.
Confirmed exploited by CISA on · US federal patch deadline Apr 18, 2022
What to do
- Install SonicWall's security update for SMA100. If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Patch edge devices first — attackers often start scanning for them within hours of a fix.
- Never expose the device's admin page to the internet.
- After patching a device that was exposed, follow the vendor's compromise checks, end active sessions and change passwords.
Who is affected
Work IT. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.
What's at risk: They face the internet and guard the whole network, so a flaw here can hand attackers a way in — and these devices usually run no antivirus, so break-ins go unnoticed.
The details
- Official name
- SonicWall SMA100 Directory Traversal Vulnerability
- Product
- SonicWall SMA100
- CISA 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.
- Type of flaw
- File path flaw (CWE-22)
- Confirmed exploited
- Mar 28, 2022
- US federal patch deadline
- Apr 18, 2022
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Answering about CVE-2019-7483 ·
Questions about CVE-2019-7483
Is CVE-2019-7483 being exploited?
Yes. CISA added CVE-2019-7483 to its Known Exploited Vulnerabilities catalog on Mar 28, 2022, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2019-7483?
Install SonicWall's security update for SMA100. If no update exists, follow the vendor's workaround or stop using the product until one ships. Patch edge devices first — attackers often start scanning for them within hours of a fix.
Am I affected by CVE-2019-7483?
Only if you use SonicWall SMA100. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.