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CVE-2023-23632

Estado: ModificadaAlta (7.8)—

BeyondTrust Privileged Remote Access (PRA) versions 22.2.x to 22.4.x are vulnerable to a local authentication bypass. Attackers can exploit a flawed secret verification process in the BYOT shell jump sessions, allowing unauthorized access to jump items by guessing only the first character of the secret.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Beyondtrust — Privileged Remote Access

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2023-23632",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-23632",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-09-18T14:28:47.747173Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:beyondtrust:privileged_remote_access:*:*:*:*:*:*:*:*"
          ],
          "vendor": "beyondtrust",
          "product": "privileged_remote_access",
          "versions": [
            {
              "status": "affected",
              "version": "22.2x",
              "versionType": "custom",
              "lessThanOrEqual": "22.4x"
            }
          ],
          "defaultStatus": "unknown"
        }
      ]
    }
  ],
  "published": "2023-10-12T20:15:12.187",
  "references": [
    {
      "url": "https://www.compass-security.com/fileadmin/Research/Advisories/2023_03_CSNC-2022-018_PRA_Privilege_Escalation.txt",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://seclists.org/fulldisclosure/2025/May/1",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.compass-security.com/fileadmin/Research/Advisories/2023_03_CSNC-2022-018_PRA_Privilege_Escalation.txt",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "BeyondTrust Privileged Remote Access (PRA) versions 22.2.x to 22.4.x are vulnerable to a local authentication bypass. Attackers can exploit a flawed secret verification process in the BYOT shell jump sessions, allowing unauthorized access to jump items by guessing only the first character of the secret."
    },
    {
      "lang": "es",
      "value": "Las versiones 22.2.x a 22.4.x de BeyondTrust Privileged Remote Access (PRA) son vulnerables a una omisión de autenticación local. Los atacantes pueden aprovechar un proceso de verificación de secretos defectuoso en las sesiones de salto del shell BYOT, lo que permite el acceso no autorizado a elementos de salto adivinando solo el primer carácter del secreto."
    }
  ],
  "lastModified": "2026-06-17T05:37:37.837",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:beyondtrust:privileged_remote_access:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "31A784B4-BF67-4CBC-BD67-688E05CFD037",
              "versionEndExcluding": "22.3.3",
              "versionStartIncluding": "22.2.1"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}