{
  "id": "CVE-2020-26029",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2020-12-28T08:15:11.210",
  "lastModified": "2024-11-21T05:19:03.693",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in Zammad before 3.4.1. There are wrong authorization checks for impersonation requests via X-On-Behalf-Of. The authorization checks are performed for the actual user and not the one given in the X-On-Behalf-Of header."
    },
    {
      "lang": "es",
      "value": "Se detect\u00f3 un problema en Zammad versiones anteriores a 3.4.1. Se presentan unas comprobaciones de autorizaci\u00f3n incorrectas para peticiones de suplantaci\u00f3n de identidad por medio de X-On-Behalf-Of. Las comprobaciones de autorizaci\u00f3n son llevadas a cabo para el usuario real y no para el que figura en el encabezado X-On-Behalf-Of"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
          "baseScore": 4.0,
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "SINGLE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.0,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:zammad:zammad:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "1.0.0",
              "versionEndExcluding": "3.4.1",
              "matchCriteriaId": "0DA96224-D95E-4967-A932-F42B7E93F83D"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://zammad.com/news/security-advisory-zaa-2020-20",
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://zammad.com/news/security-advisory-zaa-2020-20",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}