CVE-2019-7474 Denial of service in SonicOS
Authenticated read-only admins can cause a denial of service on SonicWall firewalls by downloading certificates with specific extensions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-7474?
CVE-2019-7474 is a medium-severity denial of service vulnerability in Sonicwall Sonicos, published on 2 Apr 2019. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability in SonicWall SonicOS and SonicOSv, allow authenticated read-only admin to leave the firewall in an unstable state by downloading certificate with specific extension. This vulnerability affected SonicOS Gen 5 version 5.9.1.10 and earlier, Gen 6 version 6.2.7.3, 6.5.1.3, 6.5.2.2, 6.5.3.1, 6.2.7.8, 6.4.0.0, 6.5.1.8, 6.0.5.3-86o and SonicOSv 6.5.0.2-8v_RC363 (VMWARE), 6.5.0.2.8v_RC367 (AZURE), SonicOSv 6.5.0.2.8v_RC368 (AWS), SonicOSv 6.5.0.2.8v_RC366 (HYPER_V).
Which versions are affected by CVE-2019-7474?
It affects 2 products.
Products include Sonicwall Sonicos, Sonicwall Sonicosv.
How do I fix CVE-2019-7474?
No fix has been published for CVE-2019-7474 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2019-7474 being exploited?
There is no known exploitation of CVE-2019-7474 in the wild and no public exploit code.
Other vulnerabilities in Sonicwall Sonicos
Sources
Also known as GHSA-7p74-p32g-2v26.