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CVE-2021-3934

Estado: ModificadaAlta (7.5)—

ohmyzsh is vulnerable to Improper Neutralization of Special Elements used in an OS Command

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)

Planetargon — OH MY ZSH

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-3934",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5.1,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "HIGH",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 4.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Secondary",
        "source": "security@huntr.dev",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.6
      }
    ]
  },
  "affected": [
    {
      "source": "security@huntr.dev",
      "affectedData": [
        {
          "vendor": "ohmyzsh",
          "product": "ohmyzsh/ohmyzsh",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "6cb41b70a6d04301fd50cd5862ecd705ba226c0e",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-11-12T12:15:07.460",
  "references": [
    {
      "url": "https://github.com/ohmyzsh/ohmyzsh/commit/6cb41b70a6d04301fd50cd5862ecd705ba226c0e",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "security@huntr.dev"
    },
    {
      "url": "https://huntr.dev/bounties/ad2b5c3f-a3ce-4407-94dc-354c723310ce",
      "tags": [
        "Permissions Required"
      ],
      "source": "security@huntr.dev"
    },
    {
      "url": "https://github.com/ohmyzsh/ohmyzsh/commit/6cb41b70a6d04301fd50cd5862ecd705ba226c0e",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://huntr.dev/bounties/ad2b5c3f-a3ce-4407-94dc-354c723310ce",
      "tags": [
        "Permissions Required"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@huntr.dev",
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "ohmyzsh is vulnerable to Improper Neutralization of Special Elements used in an OS Command"
    },
    {
      "lang": "es",
      "value": "ohmyzsh es vulnerable a una Neutralización Inapropiada de Elementos Especiales usados en un Comando del Sistema Operativo"
    }
  ],
  "lastModified": "2026-06-17T04:06:00.953",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:planetargon:oh_my_zsh:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "80FD5E81-3E73-4921-925C-E55098EAE4B1",
              "versionEndExcluding": "2021-11-11"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@huntr.dev"
}