FKIE_CVE-2019-12571

Vulnerability from fkie_nvd - Published: 2019-07-11 20:15 - Updated: 2024-11-21 04:23
Severity ?
7.1 (High) - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Summary
A vulnerability in the London Trust Media Private Internet Access (PIA) VPN Client v0.9.8 beta (build 02099) for macOS could allow an authenticated, local attacker to overwrite arbitrary files. When the client initiates a connection, the XML /tmp/pia-watcher.plist file is created. If the file exists, it will be truncated and the contents completely overwritten. This file is removed on disconnect. An unprivileged user can create a hard or soft link to arbitrary files owned by any user on the system, including root. This creates a denial of service condition and possible data loss if leveraged by a malicious local user.
References
cve@mitre.orghttps://github.com/mirchr/security-research/blob/master/vulnerabilities/PIA/CVE-2019-12571.txtExploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/mirchr/security-research/blob/master/vulnerabilities/PIA/CVE-2019-12571.txtExploit, Third Party Advisory
Impacted products
Vendor Product Version
londontrustmedia private_internet_access_vpn_client 0.9.8
apple macos -
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:londontrustmedia:private_internet_access_vpn_client:0.9.8:beta:*:*:*:*:*:*",
              "matchCriteriaId": "E895D4BA-83E4-47B8-B575-1D7B23C2569E",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "387021A0-AF36-463C-A605-32EA7DAC172E",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the London Trust Media Private Internet Access (PIA) VPN Client v0.9.8 beta (build 02099) for macOS could allow an authenticated, local attacker to overwrite arbitrary files. When the client initiates a connection, the XML /tmp/pia-watcher.plist file is created. If the file exists, it will be truncated and the contents completely overwritten. This file is removed on disconnect. An unprivileged user can create a hard or soft link to arbitrary files owned by any user on the system, including root. This creates a denial of service condition and possible data loss if leveraged by a malicious local user."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en el cliente VPN de Private Internet Access (PIA) versi\u00f3n 0.9.8 (build 02099) de London Trust Media para macOS, podr\u00eda permitir que un atacante local autenticado sobrescriba archivos arbitrarios. Cuando el cliente inicia una conexi\u00f3n, se crea el archivo XML /tmp/pia-watcher.plist. Si el archivo existe, se truncar\u00e1 y el contenido se sobrescribir\u00e1 por completo. Este archivo se elimina al desconectarse. Un usuario sin privilegios puede crear un enlace f\u00edsico o de software a archivos arbitrarios propiedad de cualquier usuario en el sistema, incluida la root. Esto crea una condici\u00f3n de denegaci\u00f3n de servicio y una posible p\u00e9rdida de datos si es aprovechada por un usuario local malicioso."
    }
  ],
  "id": "CVE-2019-12571",
  "lastModified": "2024-11-21T04:23:06.757",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 6.6,
          "confidentialityImpact": "NONE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 9.2,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2019-07-11T20:15:12.803",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/mirchr/security-research/blob/master/vulnerabilities/PIA/CVE-2019-12571.txt"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/mirchr/security-research/blob/master/vulnerabilities/PIA/CVE-2019-12571.txt"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-59"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • 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.



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