CVE-2022-22278 Denial of service in SonicOS
An attacker can cause a Denial of Service by triggering large HTTP responses from the SonicOS Content Filtering Service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-22278?
CVE-2022-22278 is a high-severity denial of service vulnerability in SonicWall SonicOS, published on 27 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in SonicOS CFS (Content filtering service) returns a large 403 forbidden HTTP response message to the source address when users try to access prohibited resource this allows an attacker to cause HTTP Denial of Service (DoS) attack
Weakness: CWE-770
Which versions are affected by CVE-2022-22278?
It affects 49 products.
Products include Sonicwall Nsa 2650 Firmware, Sonicwall Nsa 2700 Firmware, Sonicwall Nsa 3650 Firmware, Sonicwall Nsa 3700 Firmware, Sonicwall Nsa 4650 Firmware, Sonicwall Nsa 4700 Firmware and 43 more.
How do I fix CVE-2022-22278?
No fix has been published for CVE-2022-22278 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-2022-22278 being exploited?
There is no known exploitation of CVE-2022-22278 in the wild and no public exploit code.
Other vulnerabilities in SonicWall SonicOS
Sources
Also known as GHSA-fpfj-wp86-qmrq.