CVE-2022-22275 Denial of service in SonicOS
Attackers can bypass security policies to cause Denial of Service on target hosts via improper TCP communication channel restrictions in SonicOS.
- 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-2022-22275?
CVE-2022-22275 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
Improper Restriction of TCP Communication Channel in HTTP/S inbound traffic from WAN to DMZ bypassing security policy until TCP handshake potentially resulting in Denial of Service (DoS) attack if a target host is vulnerable.
Weakness: CWE-400
Which versions are affected by CVE-2022-22275?
It affects 1 product.
Products include Sonicwall Sonicos.
How do I fix CVE-2022-22275?
No fix has been published for CVE-2022-22275 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-2022-22275 being exploited?
There is no known exploitation of CVE-2022-22275 in the wild and no public exploit code.
Other vulnerabilities in Sonicwall Sonicos
Sources
Also known as GHSA-vpf5-gh59-9c93.