What is the vulnerability ID of this issue?

The vulnerability ID of this issue is CVE-2023-43320.

What software versions are affected by this vulnerability?

This vulnerability affects Proxmox VE versions 5.4 through 8.0, Proxmox Backup Server versions 1.1 through 3.0, and Proxmox Mail Gateway versions 7.1 through 8.0.

What is the severity of CVE-2023-43320?

The severity of CVE-2023-43320 is high with a CVSS score of 8.8.

How can an attacker exploit this vulnerability?

A remote authenticated attacker can exploit this vulnerability by bypassing the two-factor authentication component.

Are there any references available for this vulnerability?

Yes, you can find more details about this vulnerability in the following references: [Reference 1](https://bugzilla.proxmox.com/show_bug.cgi?id=4579), [Reference 2](https://bugzilla.proxmox.com/show_bug.cgi?id=4584), [Reference 3](https://github.com/proxmox/proxmox-rs/commit/50b793db8d3421bbfe2bce060a486263f18a90cb).

Vulnerability/
CVE-2023-43320

high

8.8

EPSS

0.082%

27/9/2023

26/11/2024

CVE-2023-43320

First published: Wed Sep 27 2023(Updated: )

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.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Proxmox Backup	>=1.1<=3.0
Proxmox Mail Gateway	>=7.1<=8.0
Proxmox VE	>=5.4<=8.0

Remedy

https://github.com/proxmox/proxmox-rs/commit/50b793db8d3421bbfe2bce060a486263f18a90cb

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Reference Links

Frequently Asked Questions

What is the vulnerability ID of this issue?
The vulnerability ID of this issue is CVE-2023-43320.
What software versions are affected by this vulnerability?
This vulnerability affects Proxmox VE versions 5.4 through 8.0, Proxmox Backup Server versions 1.1 through 3.0, and Proxmox Mail Gateway versions 7.1 through 8.0.
What is the severity of CVE-2023-43320?
The severity of CVE-2023-43320 is high with a CVSS score of 8.8.
How can an attacker exploit this vulnerability?
A remote authenticated attacker can exploit this vulnerability by bypassing the two-factor authentication component.
Are there any references available for this vulnerability?
Yes, you can find more details about this vulnerability in the following references: [Reference 1](https://bugzilla.proxmox.com/show_bug.cgi?id=4579), [Reference 2](https://bugzilla.proxmox.com/show_bug.cgi?id=4584), [Reference 3](https://github.com/proxmox/proxmox-rs/commit/50b793db8d3421bbfe2bce060a486263f18a90cb).

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canonical/proxmox ve
version/proxmox ve/5.4
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