Vulnerability-Lookup

CVE-2025-55740 (GCVE-0-2025-55740)

Vulnerability from cvelistv5 – Published: 2025-08-19 19:52 – Updated: 2025-08-19 20:05

Title

Default Credentials in nginx-defender Configuration Files

Summary

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.

Severity ?

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CWE

CWE-1392 - Use of Default Credentials

Assigner

GitHub_M

References

URL

Tags

https://github.com/Anipaleja/nginx-defender/secur…

x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	Anipaleja	nginx-defender	Affected: < 1.5.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-55740",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-08-19T20:05:26.655150Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-08-19T20:05:46.786Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "nginx-defender",
          "vendor": "Anipaleja",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.5.0"
            }
          ]
        }
      ],
      "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1392",
              "description": "CWE-1392: Use of Default Credentials",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-08-19T19:52:25.777Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/Anipaleja/nginx-defender/security/advisories/GHSA-pr72-8fxw-xx22",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/Anipaleja/nginx-defender/security/advisories/GHSA-pr72-8fxw-xx22"
        }
      ],
      "source": {
        "advisory": "GHSA-pr72-8fxw-xx22",
        "discovery": "UNKNOWN"
      },
      "title": "Default Credentials in nginx-defender Configuration Files"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-55740",
    "datePublished": "2025-08-19T19:52:25.777Z",
    "dateReserved": "2025-08-14T22:31:17.684Z",
    "dateUpdated": "2025-08-19T20:05:46.786Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-55740",
      "date": "2026-04-28",
      "epss": "0.00046",
      "percentile": "0.13932"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-55740\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2025-08-19T20:15:35.467\",\"lastModified\":\"2025-08-20T14:40:17.713\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"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 detecci\u00f3n de amenazas dise\u00f1ado para infraestructuras web modernas. Esta vulnerabilidad de configuraci\u00f3n afecta las implementaciones de nginx-defender. Los archivos de configuraci\u00f3n 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 podr\u00edan obtener control administrativo, evadiendo las protecciones de seguridad. El problema se soluciona en la versi\u00f3n 1.5.0 y posteriores.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":2.5}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-1392\"}]}],\"references\":[{\"url\":\"https://github.com/Anipaleja/nginx-defender/security/advisories/GHSA-pr72-8fxw-xx22\",\"source\":\"security-advisories@github.com\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-55740\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-08-19T20:05:26.655150Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-08-19T20:05:40.865Z\"}}], \"cna\": {\"title\": \"Default Credentials in nginx-defender Configuration Files\", \"source\": {\"advisory\": \"GHSA-pr72-8fxw-xx22\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"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\"}}], \"affected\": [{\"vendor\": \"Anipaleja\", \"product\": \"nginx-defender\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 1.5.0\"}]}], \"references\": [{\"url\": \"https://github.com/Anipaleja/nginx-defender/security/advisories/GHSA-pr72-8fxw-xx22\", \"name\": \"https://github.com/Anipaleja/nginx-defender/security/advisories/GHSA-pr72-8fxw-xx22\", \"tags\": [\"x_refsource_CONFIRM\"]}], \"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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-1392\", \"description\": \"CWE-1392: Use of Default Credentials\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2025-08-19T19:52:25.777Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-55740\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-08-19T20:05:46.786Z\", \"dateReserved\": \"2025-08-14T22:31:17.684Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2025-08-19T19:52:25.777Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}

GHSA-PR72-8FXW-XX22

Vulnerability from github – Published: 2025-08-19 22:24 – Updated: 2025-08-29 20:37

Summary

Default Credentials in nginx-defender Configuration Files

Details

Impact

This is a configuration vulnerability affecting nginx-defender deployments. Example configuration files config.yaml, 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.

Who is impacted? All users who deploy nginx-defender with default credentials and expose the admin interface to untrusted networks.

Patches

The issue is addressed in v1.5.0 and later.

Startup warnings are added if default credentials are detected. Documentation now strongly recommends changing all default passwords before deployment. Patched versions: 1.5.0 and later Will be fully patched in v1.7.0 and later

Workarounds

Users can remediate the vulnerability without upgrading by manually changing all default credentials in configuration files before deployment:

# config.yaml
auth:
  default_password: "your_strong_password_here"

# docker-compose.yml
- GF_SECURITY_ADMIN_PASSWORD=your_strong_password

Restrict access to the admin interface and use environment variables for secrets.

References

Severity ?

6.5 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/Anipaleja/nginx-defender"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.5.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-55740"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1392"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-08-19T22:24:40Z",
    "nvd_published_at": "2025-08-19T20:15:35Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\nThis is a configuration vulnerability affecting nginx-defender deployments. Example configuration files \n[config.yaml](https://github.com/Anipaleja/nginx-defender/blob/main/config.yaml), [docker-compose.yml](https://github.com/Anipaleja/nginx-defender/blob/main/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.\n\n**Who is impacted?**\nAll users who deploy nginx-defender with default credentials and expose the admin interface to untrusted networks.\n\n### Patches\nThe issue is addressed in v1.5.0 and later.\n\nStartup warnings are added if default credentials are detected.\nDocumentation now strongly recommends changing all default passwords before deployment.\nPatched versions:\n1.5.0 and later\n**Will be fully patched in v1.7.0 and later**\n\n### Workarounds\nUsers can remediate the vulnerability without upgrading by manually changing all default credentials in configuration files before deployment:\n```yaml\n# config.yaml\nauth:\n  default_password: \"your_strong_password_here\"\n```\n\n```yml\n# docker-compose.yml\n- GF_SECURITY_ADMIN_PASSWORD=your_strong_password\n```\nRestrict access to the admin interface and use environment variables for secrets.\n\n### References\n- [Security Configuration Guide](https://github.com/Anipaleja/nginx-defender/blob/main/docs/security-config.md)\n- [Full Security Advisory](https://github.com/Anipaleja/nginx-defender/security/advisories)\n- [Library README](https://github.com/Anipaleja/nginx-defender/blob/main/lib/README.md)\n- [README](https://github.com/Anipaleja/nginx-defender/blob/main/README.md)",
  "id": "GHSA-pr72-8fxw-xx22",
  "modified": "2025-08-29T20:37:35Z",
  "published": "2025-08-19T22:24:40Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/Anipaleja/nginx-defender/security/advisories/GHSA-pr72-8fxw-xx22"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-55740"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/Anipaleja/nginx-defender"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2025-3896"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Default Credentials in nginx-defender Configuration Files"
}

FKIE_CVE-2025-55740

Vulnerability from fkie_nvd - Published: 2025-08-19 20:15 - Updated: 2026-04-15 00:35

Severity ?

6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/Anipaleja/nginx-defender/security/advisories/GHSA-pr72-8fxw-xx22

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "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 detecci\u00f3n de amenazas dise\u00f1ado para infraestructuras web modernas. Esta vulnerabilidad de configuraci\u00f3n afecta las implementaciones de nginx-defender. Los archivos de configuraci\u00f3n 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 podr\u00edan obtener control administrativo, evadiendo las protecciones de seguridad. El problema se soluciona en la versi\u00f3n 1.5.0 y posteriores."
    }
  ],
  "id": "CVE-2025-55740",
  "lastModified": "2026-04-15T00:35:42.020",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.5,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-08-19T20:15:35.467",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/Anipaleja/nginx-defender/security/advisories/GHSA-pr72-8fxw-xx22"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1392"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CVE-2025-55740 (GCVE-0-2025-55740)

GHSA-PR72-8FXW-XX22

Impact

Patches

Workarounds

References

FKIE_CVE-2025-55740

Tags

Sightings

Nomenclature