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CVE-2025-27508

Estado: AplazadaAlta (7.5)—

Emissary is a P2P based data-driven workflow engine. The ChecksumCalculator class within allows for hashing and checksum generation, but it includes or defaults to algorithms that are no longer recommended for secure cryptographic use cases (e.g., SHA-1, CRC32, and SSDEEP). These algorithms, while possibly valid for certain non-security-critical tasks, can expose users to security risks if used in scenarios where strong cryptographic guarantees are required. This issue is fixed in 8.24.0.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

AV:N/PR:N permite acceso remoto sin privilegios (T1190). Algoritmos criptográficos débiles (SHA-1, CRC32) permiten falsificar checksums o exponer datos en tránsito, impactando integridad y confidencialidad del flujo de trabajo P2P.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Vulnerability ScanningUser TrainingRestrict File and Directory PermissionsPrivileged Account ManagementPassword PoliciesNetwork Segmentation

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

NSA — EmissaryAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-27508",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-27508",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-03-07T18:01:59.726755Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "NationalSecurityAgency",
          "product": "emissary",
          "versions": [
            {
              "status": "affected",
              "version": "< 8.24.0"
            }
          ]
        }
      ]
    }
  ],
  "published": "2025-03-05T22:15:35.867",
  "references": [
    {
      "url": "https://github.com/NationalSecurityAgency/emissary/commit/da3a81a8977577597ff2a944820a5ae4e9762368",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/NationalSecurityAgency/emissary/security/advisories/GHSA-hw43-fcmm-3m5g",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/NationalSecurityAgency/emissary/security/advisories/GHSA-hw43-fcmm-3m5g",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-327"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Emissary is a P2P based data-driven workflow engine. The ChecksumCalculator class within allows for hashing and checksum generation, but it includes or defaults to algorithms that are no longer recommended for secure cryptographic use cases (e.g., SHA-1, CRC32, and SSDEEP). These algorithms, while possibly valid for certain non-security-critical tasks, can expose users to security risks if used in scenarios where strong cryptographic guarantees are required. This issue is fixed in 8.24.0."
    },
    {
      "lang": "es",
      "value": "Emissary es un motor de flujo de trabajo basado en datos P2P. La clase ChecksumCalculator permite la generación de sumas de comprobación y hash, pero incluye o utiliza de forma predeterminada algoritmos que ya no se recomiendan para casos de uso criptográfico seguro (por ejemplo, SHA-1, CRC32 y SSDEEP). Estos algoritmos, si bien pueden ser válidos para ciertas tareas no críticas para la seguridad, pueden exponer a los usuarios a riesgos de seguridad si se utilizan en escenarios en los que se requieren garantías criptográficas sólidas. Este problema se solucionó en 8.24.0."
    }
  ],
  "lastModified": "2026-06-17T09:03:43.690",
  "sourceIdentifier": "security-advisories@github.com"
}