Vulnerability-Lookup

GHSA-66P4-7Q93-93FG

Vulnerability from github – Published: 2022-05-24 17:47 – Updated: 2022-06-29 00:00

Details

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.

Severity

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2021-28098"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-276"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-04-14T15:15:00Z",
    "severity": "HIGH"
  },
  "details": "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.",
  "id": "GHSA-66p4-7q93-93fg",
  "modified": "2022-06-29T00:00:49Z",
  "published": "2022-05-24T17:47:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-28098"
    },
    {
      "type": "WEB",
      "url": "https://docs.forescout.com"
    },
    {
      "type": "WEB",
      "url": "https://jordanpotti.com/2021/03/30/forescout-priv-esc-folder-permissions"
    },
    {
      "type": "WEB",
      "url": "https://www.adversis.io/research/2021/3/30/forescout-secure-connector-local-privilege-escalation"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2021-28098 (GCVE-0-2021-28098)

Vulnerability from cvelistv5 – Published: 2021-04-14 14:56 – Updated: 2024-08-03 21:33

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre

References

3 references

URL	Tags
https://docs.forescout.com	x_refsource_MISC
https://www.adversis.io/research/2021/3/30/foresc…	x_refsource_MISC
https://jordanpotti.com/2021/03/30/forescout-priv…	x_refsource_MISC

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{
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          "dateUpdated": "2024-08-03T21:33:17.486Z",
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          {
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            ],
            "url": "https://docs.forescout.com"
          },
          {
            "tags": [
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              "x_transferred"
            ],
            "url": "https://www.adversis.io/research/2021/3/30/forescout-secure-connector-local-privilege-escalation"
          },
          {
            "tags": [
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            ],
            "url": "https://jordanpotti.com/2021/03/30/forescout-priv-esc-folder-permissions/"
          }
        ],
        "title": "CVE Program Container"
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-66P4-7Q93-93FG

CVE-2021-28098 (GCVE-0-2021-28098)

Tags

Sightings

Nomenclature