FKIE_CVE-2019-12578

Vulnerability from fkie_nvd - Published: 2019-07-11 20:15 - Updated: 2024-11-21 04:23
Severity ?
7.8 (High) - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
A vulnerability in the London Trust Media Private Internet Access (PIA) VPN Client v82 for Linux could allow an authenticated, local attacker to run arbitrary code with elevated privileges. The openvpn_launcher.64 binary is setuid root. This binary executes /opt/pia/openvpn-64/openvpn, passing the parameters provided from the command line. Care was taken to programmatically disable potentially dangerous openvpn parameters; however, the --route-pre-down parameter can be used. This parameter accepts an arbitrary path to a script/program to be executed when OpenVPN exits. The --script-security parameter also needs to be passed to allow for this action to be taken, and --script-security is not currently in the disabled parameter list. A local unprivileged user can pass a malicious script/binary to the --route-pre-down option, which will be executed as root when openvpn is stopped.
References
cve@mitre.orghttps://github.com/mirchr/security-research/blob/master/vulnerabilities/PIA/CVE-2019-12578.txtExploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/mirchr/security-research/blob/master/vulnerabilities/PIA/CVE-2019-12578.txtExploit, Third Party Advisory
Impacted products
Vendor Product Version
londontrustmedia private_internet_access_vpn_client 82
linux linux_kernel -
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
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  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the London Trust Media Private Internet Access (PIA) VPN Client v82 for Linux could allow an authenticated, local attacker to run arbitrary code with elevated privileges. The openvpn_launcher.64 binary is setuid root. This binary executes /opt/pia/openvpn-64/openvpn, passing the parameters provided from the command line. Care was taken to programmatically disable potentially dangerous openvpn parameters; however, the --route-pre-down parameter can be used. This parameter accepts an arbitrary path to a script/program to be executed when OpenVPN exits. The --script-security parameter also needs to be passed to allow for this action to be taken, and --script-security is not currently in the disabled parameter list. A local unprivileged user can pass a malicious script/binary to the --route-pre-down option, which will be executed as root when openvpn is stopped."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en el cliente VPN de Private Internet Access (PIA) de London Trust Media para Linux, podr\u00eda permitir a un atacante local autenticado ejecutar c\u00f3digo arbitrario con privilegios elevados. El binario openvpn_launcher.64 es root setuid. Este binario ejecuta el archivo /opt/pia/openvpn-64/openvpn, pasando los par\u00e1metros proporcionados desde la l\u00ednea de comandos. Se tuvo cuidado de desactivar mediante programaci\u00f3n los par\u00e1metros openvpn potencialmente peligrosos; sin embargo, puede ser utilizado el par\u00e1metro --route-pre-down. Este par\u00e1metro acepta una ruta (path) arbitraria en un script/programa que se ejecutar\u00e1 cuando se cierre OpenVPN. El par\u00e1metro --script-security tambi\u00e9n debe pasarse para permitir que se tome esta acci\u00f3n y --script-security no est\u00e1 actualmente en la lista de par\u00e1metros deshabilitados. Un usuario local sin privilegios puede pasar un script/binario malicioso a la opci\u00f3n --route-pre-down, que ser\u00e1 ejecutado como root cuando se detenga openvpn."
    }
  ],
  "id": "CVE-2019-12578",
  "lastModified": "2024-11-21T04:23:07.753",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.2,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
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    "cvssMetricV30": [
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          "attackVector": "LOCAL",
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          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
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    ]
  },
  "published": "2019-07-11T20:15:13.193",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
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      "url": "https://github.com/mirchr/security-research/blob/master/vulnerabilities/PIA/CVE-2019-12578.txt"
    },
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-88"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • 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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