« Volver al listado

CVE-2025-55740

Estado: AplazadaMedia (6.5)—

nginx-defender is a high-performance, enterprise-grade Web Application Firewall (WAF) and threat detection system engineered for modern web infrastructure. This is a configuration vulnerability affecting nginx-defender deployments. Example configuration files config.yaml and docker-compose.yml contain default credentials (default_password: "change_me_please", GF_SECURITY_ADMIN_PASSWORD=admin123). If users deploy nginx-defender without changing these defaults, attackers with network access could gain administrative control, bypassing security protections. The issue is addressed in v1.5.0 and later.

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)

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

Nginx Defender — Nginx DefenderAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-55740",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-55740",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-08-19T20:05:26.655150Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.5,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "Anipaleja",
          "product": "nginx-defender",
          "versions": [
            {
              "status": "affected",
              "version": "< 1.5.0"
            }
          ]
        }
      ]
    }
  ],
  "published": "2025-08-19T20:15:35.467",
  "references": [
    {
      "url": "https://github.com/Anipaleja/nginx-defender/security/advisories/GHSA-pr72-8fxw-xx22",
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-1392"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "nginx-defender is a high-performance, enterprise-grade Web Application Firewall (WAF) and threat detection system engineered for modern web infrastructure. This is a configuration vulnerability affecting nginx-defender deployments. Example configuration files\nconfig.yaml and docker-compose.yml contain default credentials (default_password: \"change_me_please\", GF_SECURITY_ADMIN_PASSWORD=admin123). If users deploy nginx-defender without changing these defaults, attackers with network access could gain administrative control, bypassing security protections. The issue is addressed in v1.5.0 and later."
    },
    {
      "lang": "es",
      "value": "nginx-defender es un firewall de aplicaciones web (WAF) de alto rendimiento y nivel empresarial, y un sistema de detección de amenazas diseñado para infraestructuras web modernas. Esta vulnerabilidad de configuración afecta las implementaciones de nginx-defender. Los archivos de configuración de ejemplo config.yaml y docker-compose.yml contienen credenciales predeterminadas (default_password: \"change_me_please\", GF_SECURITY_ADMIN_PASSWORD=admin123). Si los usuarios implementan nginx-defender sin cambiar estas credenciales predeterminadas, los atacantes con acceso a la red podrían obtener control administrativo, evadiendo las protecciones de seguridad. El problema se soluciona en la versión 1.5.0 y posteriores."
    }
  ],
  "lastModified": "2026-06-17T09:42:08.887",
  "sourceIdentifier": "security-advisories@github.com"
}