Vulnerability-Lookup

CNVD-2021-99762

Vulnerability from cnvd - Published: 2021-12-14

Title

Fortinet Meru AP代码注入漏洞

Description

Fortinet Meru Ap是美国Fortinet公司的一款无线接入点。 Fortinet Meru AP在8.6.1和8.5.5 及以下版本中代码注入漏洞，该漏洞源于外部输入数据构造代码段的过程中，网络系统或产品未能正确过滤其中的特殊元素。攻击者通过精心设计的cli命令执行未经授权的代码或命令。

Severity

高

Patch Name

Fortinet Meru AP代码注入漏洞的补丁

Patch Description

Fortinet Meru Ap是美国Fortinet公司的一款无线接入点。 Fortinet Meru AP在8.6.1和8.5.5 及以下版本中代码注入漏洞，该漏洞源于外部输入数据构造代码段的过程中，网络系统或产品未能正确过滤其中的特殊元素。攻击者通过精心设计的cli命令执行未经授权的代码或命令。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://www.fortiguard.com/psirt/FG-IR-21-004

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-42759

Impacted products

Name
['Fortinet Meru AP <=8.5.5', 'Fortinet Meru AP <=8.6.1']

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JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-42759",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-42759"
    }
  },
  "description": "Fortinet Meru Ap\u662f\u7f8e\u56fdFortinet\u516c\u53f8\u7684\u4e00\u6b3e\u65e0\u7ebf\u63a5\u5165\u70b9\u3002\n\nFortinet Meru AP\u57288.6.1\u548c8.5.5 \u53ca\u4ee5\u4e0b\u7248\u672c\u4e2d\u4ee3\u7801\u6ce8\u5165\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5916\u90e8\u8f93\u5165\u6570\u636e\u6784\u9020\u4ee3\u7801\u6bb5\u7684\u8fc7\u7a0b\u4e2d\uff0c\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u672a\u80fd\u6b63\u786e\u8fc7\u6ee4\u5176\u4e2d\u7684\u7279\u6b8a\u5143\u7d20\u3002\u653b\u51fb\u8005\u901a\u8fc7\u7cbe\u5fc3\u8bbe\u8ba1\u7684cli\u547d\u4ee4\u6267\u884c\u672a\u7ecf\u6388\u6743\u7684\u4ee3\u7801\u6216\u547d\u4ee4\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://www.fortiguard.com/psirt/FG-IR-21-004",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-99762",
  "openTime": "2021-12-14",
  "patchDescription": "Fortinet Meru Ap\u662f\u7f8e\u56fdFortinet\u516c\u53f8\u7684\u4e00\u6b3e\u65e0\u7ebf\u63a5\u5165\u70b9\u3002\r\n\r\nFortinet Meru AP\u57288.6.1\u548c8.5.5 \u53ca\u4ee5\u4e0b\u7248\u672c\u4e2d\u4ee3\u7801\u6ce8\u5165\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5916\u90e8\u8f93\u5165\u6570\u636e\u6784\u9020\u4ee3\u7801\u6bb5\u7684\u8fc7\u7a0b\u4e2d\uff0c\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u672a\u80fd\u6b63\u786e\u8fc7\u6ee4\u5176\u4e2d\u7684\u7279\u6b8a\u5143\u7d20\u3002\u653b\u51fb\u8005\u901a\u8fc7\u7cbe\u5fc3\u8bbe\u8ba1\u7684cli\u547d\u4ee4\u6267\u884c\u672a\u7ecf\u6388\u6743\u7684\u4ee3\u7801\u6216\u547d\u4ee4\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Fortinet Meru AP\u4ee3\u7801\u6ce8\u5165\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Fortinet Meru AP \u003c=8.5.5",
      "Fortinet Meru AP \u003c=8.6.1"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-42759",
  "serverity": "\u9ad8",
  "submitTime": "2021-12-12",
  "title": "Fortinet Meru AP\u4ee3\u7801\u6ce8\u5165\u6f0f\u6d1e"
}

CVE-2021-42759 (GCVE-0-2021-42759)

Vulnerability from cvelistv5 – Published: 2021-12-09 09:22 – Updated: 2024-10-25 13:37

Summary

A violation of secure design principles in Fortinet Meru AP version 8.6.1 and below, version 8.5.5 and below allows attacker to execute unauthorized code or commands via crafted cli commands.

Severity

6.7 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-10-23 14:13 UTC

CWE

Execute unauthorized code or commands

Assigner

fortinet mitre root Scorecard

References

1 reference

URL	Tags
https://fortiguard.com/advisory/FG-IR-21-004	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
Fortinet	Fortinet Meru AP	Affected: Meru AP 8.6.1, 8.6.0, 8.5.5, 8.5.4, 8.5.3, 8.5.2, 8.5.1, 8.5.0

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JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T03:38:50.208Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://fortiguard.com/advisory/FG-IR-21-004"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-42759",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-23T14:13:00.424308Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-10-25T13:37:11.103Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Fortinet Meru AP",
          "vendor": "Fortinet",
          "versions": [
            {
              "status": "affected",
              "version": "Meru AP 8.6.1, 8.6.0, 8.5.5, 8.5.4, 8.5.3, 8.5.2, 8.5.1, 8.5.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A violation of secure design principles in Fortinet Meru AP version 8.6.1 and below, version 8.5.5 and below allows attacker to execute unauthorized code or commands via crafted cli commands."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "exploitCodeMaturity": "PROOF_OF_CONCEPT",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "remediationLevel": "NOT_DEFINED",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 6.3,
            "temporalSeverity": "MEDIUM",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:C",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Execute unauthorized code or commands",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-12-09T09:22:21.000Z",
        "orgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
        "shortName": "fortinet"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://fortiguard.com/advisory/FG-IR-21-004"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@fortinet.com",
          "ID": "CVE-2021-42759",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Fortinet Meru AP",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "Meru AP 8.6.1, 8.6.0, 8.5.5, 8.5.4, 8.5.3, 8.5.2, 8.5.1, 8.5.0"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Fortinet"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
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            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "Low",
            "attackVector": "Local",
            "availabilityImpact": "High",
            "baseScore": 6.3,
            "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/E:P/RL:X/RC:C",
            "version": "3.1"
          }
        },
        "problemtype": {
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                  "value": "Execute unauthorized code or commands"
                }
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          ]
        },
        "references": {
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            {
              "name": "https://fortiguard.com/advisory/FG-IR-21-004",
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            }
          ]
        }
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
    "assignerShortName": "fortinet",
    "cveId": "CVE-2021-42759",
    "datePublished": "2021-12-09T09:22:21.000Z",
    "dateReserved": "2021-10-20T00:00:00.000Z",
    "dateUpdated": "2024-10-25T13:37:11.103Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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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.

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.
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CNVD-2021-99762

CVE-2021-42759 (GCVE-0-2021-42759)

Tags

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Nomenclature

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