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CVE-2021-3583

Estado: ModificadaAlta (7.1)—

A flaw was found in Ansible, where a user's controller is vulnerable to template injection. This issue can occur through facts used in the template if the user is trying to put templates in multi-line YAML strings and the facts being handled do not routinely include special template characters. This flaw allows attackers to perform command injection, which discloses sensitive information. The highest threat from this vulnerability is to confidentiality and integrity.

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 (3)

Redhat — Ansible Automation PlatformRedhat — Ansible EngineRedhat — Ansible Tower

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-3583",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 3.6,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 4.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.1,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "ansible",
          "versions": [
            {
              "status": "affected",
              "version": "ansible_tower 3.7, ansible_engine 2.9.23"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-09-22T12:15:07.953",
  "references": [
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1968412",
      "tags": [
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00018.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1968412",
      "tags": [
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00018.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "secalert@redhat.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-94"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in Ansible, where a user's controller is vulnerable to template injection. This issue can occur through facts used in the template if the user is trying to put templates in multi-line YAML strings and the facts being handled do not routinely include special template characters. This flaw allows attackers to perform command injection, which discloses sensitive information. The highest threat from this vulnerability is to confidentiality and integrity."
    },
    {
      "lang": "es",
      "value": "Se encontró una falla en Ansible, donde el controlador de un usuario es vulnerable a la inyección de plantillas. Este problema puede ocurrir mediante hechos usados en la plantilla si el usuario está tratando de poner plantillas en cadenas YAML de varias líneas y los hechos que se manejan no incluyen rutinariamente caracteres especiales de la plantilla. Este defecto permite a atacantes llevar a cabo una inyección de comandos, lo que divulga información confidencial. La mayor amenaza de esta vulnerabilidad es para la confidencialidad y la integridad"
    }
  ],
  "lastModified": "2026-06-17T04:05:23.190",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:redhat:ansible_automation_platform:1.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CBA4F8F3-6FC3-4ADD-BB96-A707E94AB0AB"
            },
            {
              "criteria": "cpe:2.3:a:redhat:ansible_engine:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C82C3E99-50BE-4FD7-B4A0-E9083DDA2181",
              "versionEndExcluding": "2.9.23"
            },
            {
              "criteria": "cpe:2.3:a:redhat:ansible_tower:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6709FB79-8862-4A25-93D2-B08093D4FC7C",
              "versionEndExcluding": "3.7.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secalert@redhat.com"
}