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FKIE_CVE-2020-13162

Vulnerability from fkie_nvd - Published: 2020-06-16 20:15 - Updated: 2026-06-17 02:52
Summary
A time-of-check time-of-use vulnerability in PulseSecureService.exe in Pulse Secure Client versions prior to 9.1.6 down to 5.3 R70 for Windows (which runs as NT AUTHORITY/SYSTEM) allows unprivileged users to run a Microsoft Installer executable with elevated privileges.
References
cve@mitre.orghttp://packetstormsecurity.com/files/158117/Pulse-Secure-Client-For-Windows-Local-Privilege-Escalation.htmlThird Party Advisory, VDB Entry
cve@mitre.orghttp://packetstormsecurity.com/files/159065/Pulse-Secure-Windows-Client-Privilege-Escalation.htmlThird Party Advisory, VDB Entry
cve@mitre.orghttp://seclists.org/fulldisclosure/2020/Jun/25Mailing List, Third Party Advisory
cve@mitre.orghttp://seclists.org/fulldisclosure/2020/Sep/15Mailing List, Third Party Advisory
cve@mitre.orghttps://kb.pulsesecure.net/?atype=saVendor Advisory
cve@mitre.orghttps://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44503Vendor Advisory
cve@mitre.orghttps://twitter.com/gsepcali/status/1262551597990711296Third Party Advisory
cve@mitre.orghttps://twitter.com/gsepcali/status/1272927080909623297Third Party Advisory
cve@mitre.orghttps://twitter.com/sepcali/status/1262551597990711296Third Party Advisory
cve@mitre.orghttps://www.redtimmy.com/privilege-escalation/pulse-secure-client-for-windows-9-1-6-toctou-privilege-escalation-cve-2020-13162/Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/158117/Pulse-Secure-Client-For-Windows-Local-Privilege-Escalation.htmlThird Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/159065/Pulse-Secure-Windows-Client-Privilege-Escalation.htmlThird Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2020/Jun/25Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2020/Sep/15Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://kb.pulsesecure.net/?atype=saVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44503Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://twitter.com/gsepcali/status/1262551597990711296Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://twitter.com/gsepcali/status/1272927080909623297Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://twitter.com/sepcali/status/1262551597990711296Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.redtimmy.com/privilege-escalation/pulse-secure-client-for-windows-9-1-6-toctou-privilege-escalation-cve-2020-13162/Exploit, Third Party Advisory

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A time-of-check time-of-use vulnerability in PulseSecureService.exe in Pulse Secure Client versions prior to 9.1.6 down to 5.3 R70 for Windows (which runs as NT AUTHORITY/SYSTEM) allows unprivileged users to run a Microsoft Installer executable with elevated privileges."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de tipo time-of-check time-of-use en el archivo PulseSecureService.exe en Pulse Secure Client versiones anteriores a 9.1.6 hasta 5.3 R70 para Windows (que se ejecuta como NT AUTHORITY/SYSTEM), permite a los usuarios sin privilegios correr un ejecutable de Microsoft Installer con privilegios elevados"
    }
  ],
  "id": "CVE-2020-13162",
  "lastModified": "2026-06-17T02:52:43.030",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 6.9,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.4,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.0,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.0,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2020-13162",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-04-23T13:29:43.978282Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2020-06-16T20:15:13.380",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
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        "VDB Entry"
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      "url": "http://packetstormsecurity.com/files/158117/Pulse-Secure-Client-For-Windows-Local-Privilege-Escalation.html"
    },
    {
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    },
    {
      "source": "cve@mitre.org",
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      ],
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    },
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    },
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    },
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    },
    {
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      "url": "https://twitter.com/gsepcali/status/1262551597990711296"
    },
    {
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    },
    {
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      ],
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    },
    {
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      "tags": [
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        "Third Party Advisory"
      ],
      "url": "https://www.redtimmy.com/privilege-escalation/pulse-secure-client-for-windows-9-1-6-toctou-privilege-escalation-cve-2020-13162/"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-367"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-367"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}



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