Proxmox VE 7.0-8.0 Authentication Bypass via tfa-challenge Parameter
Proxmox Virtual Environment (VE) 7.0 through 8.0 contains an authentication bypass vulnerability in libpve-access-control before 8.0.4 that allows unauthenticated attackers to authenticate as any existing enabled user without a configured second factor by supplying an arbitrary tfa-challenge value in the API login endpoint. Attackers can send a POST request to the access ticket API endpoint with any value in the tfa-challenge parameter to completely skip password verification, gaining unauthorized access including to the root@pam account. All affected releases are end of life.
CVE-2023-54391
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2023-54391
Proxmox Virtual Environment (VE)
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Proxmox Server Solutions GmbH",
"product": "Proxmox Virtual Environment (VE)",
"versions": [
{
"status": "affected",
"version": "7.0",
"versionType": "custom",
"lessThanOrEqual": "7.4"
},
{
"status": "affected",
"version": "8.0",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2023-54391
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #5379 · Revision 1
- Added to Heist Feed
- Publisher date