fkie_cve-2021-28098
Vulnerability from fkie_nvd
Published
2021-04-14 15:15
Modified
2024-11-21 05:59
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
An issue was discovered in Forescout CounterACT before 8.1.4. A local privilege escalation vulnerability is present in the logging function. SecureConnector runs with administrative privileges and writes logs entries to a file in %PROGRAMDATA%\ForeScout SecureConnector\ that has full permissions for the Everyone group. Using a symbolic link allows an attacker to point the log file to a privileged location such as %WINDIR%\System32. The resulting log file adopts the file permissions of the source of the symbolic link (in this case, the Everyone group). The log file in System32 can be replaced and renamed with a malicious DLL for DLL hijacking.
References
cve@mitre.orghttps://docs.forescout.comVendor Advisory
cve@mitre.orghttps://jordanpotti.com/2021/03/30/forescout-priv-esc-folder-permissions/Exploit, Third Party Advisory
cve@mitre.orghttps://www.adversis.io/research/2021/3/30/forescout-secure-connector-local-privilege-escalationExploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://docs.forescout.comVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://jordanpotti.com/2021/03/30/forescout-priv-esc-folder-permissions/Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.adversis.io/research/2021/3/30/forescout-secure-connector-local-privilege-escalationExploit, Third Party Advisory
Impacted products
Vendor Product Version
forescout counteract *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:forescout:counteract:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "148F4D54-E531-4BAC-AB37-703FC29721BB",
              "versionEndExcluding": "8.1.4",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in Forescout CounterACT before 8.1.4. A local privilege escalation vulnerability is present in the logging function. SecureConnector runs with administrative privileges and writes logs entries to a file in %PROGRAMDATA%\\ForeScout SecureConnector\\ that has full permissions for the Everyone group. Using a symbolic link allows an attacker to point the log file to a privileged location such as %WINDIR%\\System32. The resulting log file adopts the file permissions of the source of the symbolic link (in this case, the Everyone group). The log file in System32 can be replaced and renamed with a malicious DLL for DLL hijacking."
    },
    {
      "lang": "es",
      "value": "Se detect\u00f3 un problema en Forescout CounterACT versiones anteriores a 8.1.4.\u0026#xa0;Se presenta una vulnerabilidad de escalada de privilegios local en la funci\u00f3n de registro.\u0026#xa0;SecureConnector se ejecuta con privilegios administrativos y escribe entradas de registros en un archivo in %PROGRAMDATA%\\ForeScout SecureConnector\\ que presenta permisos completos para el grupo Everyone.\u0026#xa0;El uso de un enlace simb\u00f3lico permite que un atacante apunte el archivo de registro a una ubicaci\u00f3n privilegiada como %WINDIR%\\System32.\u0026#xa0;El archivo de registro resultante adopta los permisos de archivo de la fuente del enlace simb\u00f3lico (en este caso, el grupo Everyone).\u0026#xa0;El archivo de registro en System32 se puede reemplazar y renombrar con una DLL maliciosa para el secuestro de DLL"
    }
  ],
  "id": "CVE-2021-28098",
  "lastModified": "2024-11-21T05:59:05.290",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.4,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 3.4,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-04-14T15:15:14.503",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://docs.forescout.com"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://jordanpotti.com/2021/03/30/forescout-priv-esc-folder-permissions/"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
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        "Third Party Advisory"
      ],
      "url": "https://www.adversis.io/research/2021/3/30/forescout-secure-connector-local-privilege-escalation"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://docs.forescout.com"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://jordanpotti.com/2021/03/30/forescout-priv-esc-folder-permissions/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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        "Third Party Advisory"
      ],
      "url": "https://www.adversis.io/research/2021/3/30/forescout-secure-connector-local-privilege-escalation"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-59"
        },
        {
          "lang": "en",
          "value": "CWE-427"
        },
        {
          "lang": "en",
          "value": "CWE-732"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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