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Critical

Proxmox VE 7.0-8.0 Authentication Bypass via tfa-challenge Parameter

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

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
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