{
  "id": "CVE-2021-41180",
  "sourceIdentifier": "security-advisories@github.com",
  "published": "2022-03-08T18:15:07.737",
  "lastModified": "2022-03-15T16:18:40.120",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "Nextcloud talk is a self hosting messaging service. In versions prior 12.1.2 an attacker is able to control the link of a geolocation preview in the Nextcloud Talk application due to a lack of validation on the link. This could result in an open-redirect, but required user interaction. This only affected users of the Android Talk client. It is recommended that the Nextcloud Talk App is upgraded to 12.1.2. There are no known workarounds."
    },
    {
      "lang": "es",
      "value": "Nextcloud talk es un servicio de mensajer\u00eda de autoalojamiento. En versiones anteriores a la 12.1.2 un atacante es capaz de controlar el enlace de una vista previa de geolocalizaci\u00f3n en la aplicaci\u00f3n Nextcloud Talk debido a una falta de validaci\u00f3n en el enlace. Esto pod\u00eda dar lugar a una redirecci\u00f3n abierta, pero requer\u00eda la interacci\u00f3n del usuario. Esto s\u00f3lo afectaba a los usuarios del cliente Android Talk. Se recomienda actualizar la aplicaci\u00f3n Nextcloud Talk a la versi\u00f3n 12.1.2. No se presentan medidas de mitigaci\u00f3n conocidas"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "CHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE",
          "baseScore": 6.1,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.7
      },
      {
        "source": "security-advisories@github.com",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "CHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 2.7
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:N",
          "accessVector": "NETWORK",
          "accessComplexity": "HIGH",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "NONE",
          "baseScore": 4.0
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 4.9,
        "impactScore": 4.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ]
  },
  "weaknesses": [
    {
      "source": "security-advisories@github.com",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-601"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:nextcloud:talk:*:*:*:*:*:android:*:*",
              "versionEndExcluding": "12.1.2",
              "matchCriteriaId": "806F7426-CD6F-4C3D-984D-93CFBC85F289"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-4fxr-mrw2-cq92",
      "source": "security-advisories@github.com",
      "tags": [
        "Issue Tracking",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/nextcloud/spreed/pull/6239",
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://hackerone.com/reports/1337178",
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Patch",
        "Third Party Advisory"
      ]
    }
  ]
}