FKIE_CVE-2021-36193

Vulnerability from fkie_nvd - Published: 2022-02-02 12:15 - Updated: 2026-06-17 03:58
Severity
6.7 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
7.2 (High) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Summary
Multiple stack-based buffer overflows in the command line interpreter of FortiWeb before 6.4.2 may allow an authenticated attacker to achieve arbitrary code execution via specially crafted commands.
References
psirt@fortinet.comhttps://fortiguard.com/advisory/FG-IR-21-132Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://fortiguard.com/advisory/FG-IR-21-132Vendor Advisory
Impacted products
Vendor Product Version
fortinet fortiweb *
fortinet fortiweb *
fortinet fortiweb *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
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          "defaultStatus": "unaffected",
          "product": "FortiWeb",
          "vendor": "Fortinet",
          "versions": [
            {
              "lessThanOrEqual": "6.4.1",
              "status": "affected",
              "version": "6.4.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.3.15",
              "status": "affected",
              "version": "6.3.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "cpes": [
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            "cpe:2.3:a:fortinet:fortirecorder:6.4.1:*:*:*:*:*:*:*",
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            "cpe:2.3:a:fortinet:fortirecorder:6.0.10:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortirecorder:6.0.9:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortirecorder:6.0.8:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortirecorder:6.0.7:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortirecorder:6.0.6:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortirecorder:6.0.5:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortirecorder:6.0.4:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortirecorder:6.0.3:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortirecorder:6.0.2:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortirecorder:6.0.1:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortirecorder:6.0.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortirecorder:2.7.7:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortirecorder:2.7.6:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortirecorder:2.7.5:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortirecorder:2.7.4:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortirecorder:2.7.3:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortirecorder:2.7.2:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortirecorder:2.7.1:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortirecorder:2.7.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortirecorder:2.6.3:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortirecorder:2.6.2:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortirecorder:2.6.1:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortirecorder:2.6.0:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "product": "FortiRecorder",
          "vendor": "Fortinet",
          "versions": [
            {
              "lessThanOrEqual": "6.4.2",
              "status": "affected",
              "version": "6.4.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.10",
              "status": "affected",
              "version": "6.0.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "2.7.7",
              "status": "affected",
              "version": "2.7.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "2.6.3",
              "status": "affected",
              "version": "2.6.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:a:fortinet:fortindr:1.5.3:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortindr:1.5.2:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortindr:1.5.1:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortindr:1.5.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortindr:1.4.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortindr:1.3.1:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortindr:1.3.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortindr:1.2.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortindr:1.1.0:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "product": "FortiNDR",
          "vendor": "Fortinet",
          "versions": [
            {
              "lessThanOrEqual": "1.5.3",
              "status": "affected",
              "version": "1.5.0",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "1.4.0"
            },
            {
              "lessThanOrEqual": "1.3.1",
              "status": "affected",
              "version": "1.3.0",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "1.2.0"
            },
            {
              "status": "affected",
              "version": "1.1.0"
            }
          ]
        }
      ],
      "source": "psirt@fortinet.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C5738C08-6BAE-4A23-895E-CC17152F1ADA",
              "versionEndExcluding": "6.2.6",
              "versionStartIncluding": "5.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C0486411-DC71-4C02-8973-B91930A439A2",
              "versionEndExcluding": "6.3.16",
              "versionStartIncluding": "6.3.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C97F7E3F-4747-46AA-8D2C-5D7C363CDB14",
              "versionEndExcluding": "6.4.2",
              "versionStartIncluding": "6.4.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Multiple stack-based buffer overflows\u00a0in the command line interpreter of FortiWeb before 6.4.2 may allow an authenticated attacker to achieve arbitrary code execution via specially crafted commands."
    },
    {
      "lang": "es",
      "value": "M\u00faltiples desbordamientos de b\u00fafer en la regi\u00f3n stack de la memoria en el int\u00e9rprete de l\u00ednea de comandos de FortiWeb versiones anteriores a 6.4.2, pueden permitir a un atacante autenticado lograr una ejecuci\u00f3n de c\u00f3digo arbitrario por medio de comandos especialmente dise\u00f1ados"
    }
  ],
  "id": "CVE-2021-36193",
  "lastModified": "2026-06-17T03:58:30.080",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 6.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 0.8,
        "impactScore": 5.9,
        "source": "psirt@fortinet.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.2,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-36193",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-10-23T14:12:56.216120Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2022-02-02T12:15:07.977",
  "references": [
    {
      "source": "psirt@fortinet.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://fortiguard.com/advisory/FG-IR-21-132"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://fortiguard.com/advisory/FG-IR-21-132"
    }
  ],
  "sourceIdentifier": "psirt@fortinet.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-121"
        }
      ],
      "source": "psirt@fortinet.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Secondary"
    }
  ]
}


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Tags
Taxonomy of the tags.





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

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.