CVE-2023-27516 Auth bypass in SoftEther VPN
An attacker can bypass authentication in SoftEther VPN by sending a specially crafted network packet, gaining unauthorized access to the system.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-27516?
CVE-2023-27516 is a high-severity authentication bypass vulnerability in SoftEther VPN, published on 12 Oct 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An authentication bypass vulnerability exists in the CiRpcAccepted() functionality of SoftEther VPN 4.41-9782-beta and 5.01.9674. A specially crafted network packet can lead to unauthorized access. An attacker can send a network request to trigger this vulnerability.
Which versions are affected by CVE-2023-27516?
It affects 1 product.
Products include Softether Vpn.
How do I fix CVE-2023-27516?
No fix has been published for CVE-2023-27516 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2023-27516 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-27516 exists.
Other vulnerabilities in SoftEther VPN
Sources
Also known as GHSA-cw58-3hpw-976j.