Vulnerability-Lookup

FKIE_CVE-2021-43076

Vulnerability from fkie_nvd - Published: 2022-09-06 16:15 - Updated: 2026-06-17 04:10

Severity

6.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Summary

An improper privilege management vulnerability [CWE-269] in FortiADC versions 6.2.1 and below, 6.1.5 and below, 6.0.4 and below, 5.4.5 and below and 5.3.7 and below may allow a remote authenticated attacker with restricted user profile to modify the system files using the shell access.

References

	URL	Tags
	psirt@fortinet.com	https://fortiguard.com/psirt/FG-IR-21-215	Vendor Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://fortiguard.com/psirt/FG-IR-21-215	Vendor Advisory

Impacted products

Vendor	Product	Version
fortinet	fortiadc	*
fortinet	fortiadc	*
fortinet	fortiadc	*
fortinet	fortiadc	*
fortinet	fortiadc	6.2.0
fortinet	fortiadc	6.2.1

JSON

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{
  "affected": [
    {
      "affectedData": [
        {
          "product": "FortiADC",
          "vendor": "Fortinet",
          "versions": [
            {
              "status": "affected",
              "version": "FortiADC 6.2.1, 6.2.0, 6.1.5, 6.1.4, 6.1.3, 6.1.2, 6.1.1, 6.1.0, 6.0.4, 6.0.3, 6.0.2, 6.0.1, 6.0.0, 5.4.5, 5.4.4, 5.4.3, 5.4.2, 5.4.1, 5.4.0, 5.3.7, 5.3.6, 5.3.5, 5.3.4, 5.3.3, 5.3.2, 5.3.1, 5.3.0"
            }
          ]
        }
      ],
      "source": "psirt@fortinet.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:fortinet:fortiadc:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "A3EEDDB2-61AC-43F4-9719-3548057EF30E",
              "versionEndIncluding": "5.3.7",
              "versionStartIncluding": "5.3.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:fortinet:fortiadc:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "54EBC78D-0358-474F-9654-3EF9950D563B",
              "versionEndIncluding": "5.4.5",
              "versionStartIncluding": "5.4.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:fortinet:fortiadc:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "3ADB57D8-1ABE-4401-B1B0-4640A34C555A",
              "versionEndIncluding": "6.0.4",
              "versionStartIncluding": "6.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:fortinet:fortiadc:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "2E456D89-0820-4E71-A54A-16EEA8DB94D8",
              "versionEndIncluding": "6.1.5",
              "versionStartIncluding": "6.1.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:fortinet:fortiadc:6.2.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "FCDF60B5-A0BE-41F6-A0D5-53526A7BBAE1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:fortinet:fortiadc:6.2.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "B42E0536-4831-4A6B-AC0B-C7AE3CDE3834",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An improper privilege management vulnerability [CWE-269] in FortiADC versions 6.2.1 and below, 6.1.5 and below, 6.0.4 and below, 5.4.5 and below and 5.3.7 and below may allow a remote authenticated attacker with restricted user profile to modify the system files using the shell access."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de administraci\u00f3n inapropiada de privilegios [CWE-269] en FortiADC versiones 6.2.1 y anteriores, 6.1.5 y anteriores, 6.0.4 y anteriores, 5.4.5 y anteriores y 5.3.7 y anteriores, puede permitir que un atacante remoto autenticado con perfil de usuario restringido modifique los archivos del sistema usando el acceso shell.\n"
    }
  ],
  "id": "CVE-2021-43076",
  "lastModified": "2026-06-17T04:10:29.000",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 6.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.4,
        "source": "psirt@fortinet.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-43076",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-10-22T20:19:10.744557Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2022-09-06T16:15:08.333",
  "references": [
    {
      "source": "psirt@fortinet.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://fortiguard.com/psirt/FG-IR-21-215"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://fortiguard.com/psirt/FG-IR-21-215"
    }
  ],
  "sourceIdentifier": "psirt@fortinet.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-269"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2021-43076 (GCVE-0-2021-43076)

Vulnerability from cvelistv5 – Published: 2022-09-06 15:15 – Updated: 2024-10-22 20:54

Summary

Severity

6.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:F/RL:X/RC:X

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-10-22 20:19 UTC

CWE

Improper access control

Assigner

fortinet mitre root

References

1 reference

URL	Tags
https://fortiguard.com/psirt/FG-IR-21-215	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
Fortinet	FortiADC	Affected: FortiADC 6.2.1, 6.2.0, 6.1.5, 6.1.4, 6.1.3, 6.1.2, 6.1.1, 6.1.0, 6.0.4, 6.0.3, 6.0.2, 6.0.1, 6.0.0, 5.4.5, 5.4.4, 5.4.3, 5.4.2, 5.4.1, 5.4.0, 5.3.7, 5.3.6, 5.3.5, 5.3.4, 5.3.3, 5.3.2, 5.3.1, 5.3.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T03:47:13.436Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://fortiguard.com/psirt/FG-IR-21-215"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-43076",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-22T20:19:10.744557Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-10-22T20:54:10.110Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "FortiADC",
          "vendor": "Fortinet",
          "versions": [
            {
              "status": "affected",
              "version": "FortiADC 6.2.1, 6.2.0, 6.1.5, 6.1.4, 6.1.3, 6.1.2, 6.1.1, 6.1.0, 6.0.4, 6.0.3, 6.0.2, 6.0.1, 6.0.0, 5.4.5, 5.4.4, 5.4.3, 5.4.2, 5.4.1, 5.4.0, 5.3.7, 5.3.6, 5.3.5, 5.3.4, 5.3.3, 5.3.2, 5.3.1, 5.3.0"
            }
          ]
        }
      ],
      "descriptions": [
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          "lang": "en",
          "value": "An improper privilege management vulnerability [CWE-269] in FortiADC versions 6.2.1 and below, 6.1.5 and below, 6.0.4 and below, 5.4.5 and below and 5.3.7 and below may allow a remote authenticated attacker with restricted user profile to modify the system files using the shell access."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "exploitCodeMaturity": "FUNCTIONAL",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "remediationLevel": "NOT_DEFINED",
            "reportConfidence": "NOT_DEFINED",
            "scope": "UNCHANGED",
            "temporalScore": 6.2,
            "temporalSeverity": "MEDIUM",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:F/RL:X/RC:X",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Improper access control",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-09-06T15:15:17.000Z",
        "orgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
        "shortName": "fortinet"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://fortiguard.com/psirt/FG-IR-21-215"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@fortinet.com",
          "ID": "CVE-2021-43076",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "FortiADC",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "FortiADC 6.2.1, 6.2.0, 6.1.5, 6.1.4, 6.1.3, 6.1.2, 6.1.1, 6.1.0, 6.0.4, 6.0.3, 6.0.2, 6.0.1, 6.0.0, 5.4.5, 5.4.4, 5.4.3, 5.4.2, 5.4.1, 5.4.0, 5.3.7, 5.3.6, 5.3.5, 5.3.4, 5.3.3, 5.3.2, 5.3.1, 5.3.0"
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            "scope": "Unchanged",
            "userInteraction": "None",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:F/RL:X/RC:X",
            "version": "3.1"
          }
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        "problemtype": {
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                  "value": "Improper access control"
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        "references": {
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            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
    "assignerShortName": "fortinet",
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    "datePublished": "2022-09-06T15:15:17.000Z",
    "dateReserved": "2021-10-28T00:00:00.000Z",
    "dateUpdated": "2024-10-22T20:54:10.110Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.