CVE-2021-4433 Karjasoft Sami HTTP Server HTTP HEAD Rrequest denial of service
Remote attackers can cause a denial of service in Karjasoft Sami HTTP Server by sending malicious HTTP HEAD requests.
- 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-2021-4433?
CVE-2021-4433 is a medium-severity denial of service vulnerability in Karjasoft Sami HTTP Server, published on 18 Jan 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was found in Karjasoft Sami HTTP Server 2.0. It has been classified as problematic. Affected is an unknown function of the component HTTP HEAD Rrequest Handler. The manipulation leads to denial of service. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-250836.
Weakness: CWE-404
Which versions are affected by CVE-2021-4433?
It affects 1 product.
Products include Karjasoft Sami Http Server.
How do I fix CVE-2021-4433?
No fix has been published for CVE-2021-4433 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-2021-4433 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-4433 exists.
Other vulnerabilities in Karjasoft Sami HTTP Server
Sources
Also known as GHSA-22mf-f3cc-mh6f.