CVE-2023-43320 Auth bypass in n/a
Remote authenticated attackers can escalate privileges by bypassing two-factor authentication in Proxmox VE, Backup Server, and Mail Gateway.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-43320?
CVE-2023-43320 is a high-severity authentication bypass vulnerability in n/a, published on 27 Sep 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An issue in Proxmox Server Solutions GmbH Proxmox VE v.5.4 thru v.8.0, Proxmox Backup Server v.1.1 thru v.3.0, and Proxmox Mail Gateway v.7.1 thru v.8.0 allows a remote authenticated attacker to escalate privileges via bypassing the two-factor authentication component.
Which versions are affected by CVE-2023-43320?
It affects 3 products.
Products include Proxmox Backup Server, Proxmox Proxmox Mail Gateway, Proxmox Virtual Environment.
How do I fix CVE-2023-43320?
No fix has been published for CVE-2023-43320 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-2023-43320 being exploited?
There is no known exploitation of CVE-2023-43320 in the wild and no public exploit code.
Sources
Also known as GHSA-prc6-xmpq-r4g3.