CVE-2021-27963 Missing authorization in n/a
An anonymous attacker can create users with any permission level, including SuperAdmin, due to missing authentication on the user creation endpoint.
- 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-2021-27963?
CVE-2021-27963 is a high-severity missing authorization vulnerability in n/a, published on 5 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
SonLogger before 6.4.1 is affected by user creation with any user permissions profile (e.g., SuperAdmin). An anonymous user can send a POST request to /User/saveUser without any authentication or session header.
Weakness: CWE-306
Which versions are affected by CVE-2021-27963?
It affects 1 product.
Products include Sfcyazilim Sonlogger.
How do I fix CVE-2021-27963?
No fix has been published for CVE-2021-27963 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2021-27963 being exploited?
There is no known exploitation of CVE-2021-27963 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in n/a
Sources
Also known as GHSA-qjp9-v762-692g.