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CVE-2023-48427

Status: ModifiedCritical (9.8)—

A vulnerability has been identified in SINEC INS (All versions < V1.0 SP2 Update 2). Affected products do not properly validate the certificate of the configured UMC server. This could allow an attacker to intercept credentials that are sent to the UMC server as well as to manipulate responses, potentially allowing an attacker to escalate privileges.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Siemens — Sinec INS

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2023-48427",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-48427",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-11-25T21:16:08.935587Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "productcert@siemens.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.1,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.2
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "productcert@siemens.com",
      "affectedData": [
        {
          "vendor": "Siemens",
          "product": "SINEC INS",
          "versions": [
            {
              "status": "affected",
              "version": "All versions < V1.0 SP2 Update 2"
            }
          ],
          "defaultStatus": "unknown"
        }
      ]
    }
  ],
  "published": "2023-12-12T12:15:14.677",
  "references": [
    {
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-077170.pdf",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "productcert@siemens.com"
    },
    {
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-077170.pdf",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "productcert@siemens.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-295"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-295"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability has been identified in SINEC INS (All versions < V1.0 SP2 Update 2). Affected products do not properly validate the certificate of the configured UMC server. This could allow an attacker to intercept credentials that are sent to the UMC server as well as to manipulate responses, potentially allowing an attacker to escalate privileges."
    },
    {
      "lang": "es",
      "value": "Se ha identificado una vulnerabilidad en SINEC INS (Todas las versiones &lt; V1.0 SP2 Update 2). Los productos afectados no validan correctamente el certificado del servidor UMC configurado. Esto podría permitir a un atacante interceptar las credenciales que se envían al servidor UMC, así como manipular las respuestas, lo que podría permitirle al atacante escalar privilegios."
    }
  ],
  "lastModified": "2026-06-17T06:34:14.223",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:siemens:sinec_ins:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C89891C1-DFD7-4E1F-80A9-7485D86A15B5",
              "versionEndExcluding": "1.0"
            },
            {
              "criteria": "cpe:2.3:a:siemens:sinec_ins:1.0:-:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4664B195-AF14-4834-82B3-0B2C98020EB6"
            },
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              "criteria": "cpe:2.3:a:siemens:sinec_ins:1.0:sp1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "75BC588E-CDF0-404E-AD61-02093A1DF343"
            },
            {
              "criteria": "cpe:2.3:a:siemens:sinec_ins:1.0:sp2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A334F7B4-7283-4453-BAED-D2E01B7F8A6E"
            },
            {
              "criteria": "cpe:2.3:a:siemens:sinec_ins:1.0:sp2_update_1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A6BEA71C-CA81-4B5D-A688-2B21E62DC351"
            }
          ],
          "operator": "OR"
        }
      ]
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  ],
  "sourceIdentifier": "productcert@siemens.com"
}