Vulnerability-Lookup

CNVD-2021-50165

Vulnerability from cnvd - Published: 2021-07-13

Title

Fortinet FortiMail注入漏洞

Description

Fortinet FortiMail是美国飞塔（Fortinet）公司的一套电子邮件安全网关产品。该产品提供电子邮件安全防护和数据保护等功能。 Fortinet FortiMail存在注入漏洞，该漏洞源于FortiMail 中散列摘要算法实施中缺少加密步骤。未经身份验证的攻击者可利用漏洞通过附加更多数据来篡改签名URL，从而绕过签名验证。

Severity

高

Patch Name

Fortinet FortiMail注入漏洞的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://www.fortiguard.com/psirt/FG-IR-21-027

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-24020

Impacted products

Name
['Fortinet FortiMail >=6.4.0，<=6.4.4', 'Fortinet FortiMail >=6.2.0，<=6.2.7']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-24020"
    }
  },
  "description": "Fortinet FortiMail\u662f\u7f8e\u56fd\u98de\u5854\uff08Fortinet\uff09\u516c\u53f8\u7684\u4e00\u5957\u7535\u5b50\u90ae\u4ef6\u5b89\u5168\u7f51\u5173\u4ea7\u54c1\u3002\u8be5\u4ea7\u54c1\u63d0\u4f9b\u7535\u5b50\u90ae\u4ef6\u5b89\u5168\u9632\u62a4\u548c\u6570\u636e\u4fdd\u62a4\u7b49\u529f\u80fd\u3002\n\nFortinet FortiMail\u5b58\u5728\u6ce8\u5165\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eFortiMail \u4e2d\u6563\u5217\u6458\u8981\u7b97\u6cd5\u5b9e\u65bd\u4e2d\u7f3a\u5c11\u52a0\u5bc6\u6b65\u9aa4\u3002\u672a\u7ecf\u8eab\u4efd\u9a8c\u8bc1\u7684\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u901a\u8fc7\u9644\u52a0\u66f4\u591a\u6570\u636e\u6765\u7be1\u6539\u7b7e\u540dURL\uff0c\u4ece\u800c\u7ed5\u8fc7\u7b7e\u540d\u9a8c\u8bc1\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://www.fortiguard.com/psirt/FG-IR-21-027",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-50165",
  "openTime": "2021-07-13",
  "patchDescription": "Fortinet FortiMail\u662f\u7f8e\u56fd\u98de\u5854\uff08Fortinet\uff09\u516c\u53f8\u7684\u4e00\u5957\u7535\u5b50\u90ae\u4ef6\u5b89\u5168\u7f51\u5173\u4ea7\u54c1\u3002\u8be5\u4ea7\u54c1\u63d0\u4f9b\u7535\u5b50\u90ae\u4ef6\u5b89\u5168\u9632\u62a4\u548c\u6570\u636e\u4fdd\u62a4\u7b49\u529f\u80fd\u3002\r\n\r\nFortinet FortiMail\u5b58\u5728\u6ce8\u5165\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eFortiMail \u4e2d\u6563\u5217\u6458\u8981\u7b97\u6cd5\u5b9e\u65bd\u4e2d\u7f3a\u5c11\u52a0\u5bc6\u6b65\u9aa4\u3002\u672a\u7ecf\u8eab\u4efd\u9a8c\u8bc1\u7684\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u901a\u8fc7\u9644\u52a0\u66f4\u591a\u6570\u636e\u6765\u7be1\u6539\u7b7e\u540dURL\uff0c\u4ece\u800c\u7ed5\u8fc7\u7b7e\u540d\u9a8c\u8bc1\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 FortiMail\u6ce8\u5165\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Fortinet FortiMail \u003e=6.4.0\uff0c\u003c=6.4.4",
      "Fortinet FortiMail \u003e=6.2.0\uff0c\u003c=6.2.7"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-24020",
  "serverity": "\u9ad8",
  "submitTime": "2021-07-13",
  "title": "Fortinet FortiMail\u6ce8\u5165\u6f0f\u6d1e"
}

CVE-2021-24020 (GCVE-0-2021-24020)

Vulnerability from cvelistv5 – Published: 2021-07-09 18:17 – Updated: 2024-10-25 13:57

Summary

A missing cryptographic step in the implementation of the hash digest algorithm in FortiMail 6.4.0 through 6.4.4, and 6.2.0 through 6.2.7 may allow an unauthenticated attacker to tamper with signed URLs by appending further data which allows bypass of signature verification.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-10-23 14:13 UTC

CWE

Improper Access Control

Assigner

fortinet mitre root Scorecard

References

1 reference

URL	Tags
https://fortiguard.com/advisory/FG-IR-21-027	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
Fortinet	Fortinet FortiMail	Affected: FortiMail 6.4.0 through 6.4.4, and 6.2.0 through 6.2.7

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T19:14:10.061Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://fortiguard.com/advisory/FG-IR-21-027"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-24020",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-23T14:13:45.573210Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-10-25T13:57:25.857Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Fortinet FortiMail",
          "vendor": "Fortinet",
          "versions": [
            {
              "status": "affected",
              "version": "FortiMail 6.4.0 through 6.4.4, and 6.2.0 through 6.2.7"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A missing cryptographic step in the implementation of the hash digest algorithm in FortiMail 6.4.0 through 6.4.4, and 6.2.0 through 6.2.7 may allow an unauthenticated attacker to tamper with signed URLs by appending further data which allows bypass of signature verification."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Improper Access Control",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-07-09T18:17:26.000Z",
        "orgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
        "shortName": "fortinet"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://fortiguard.com/advisory/FG-IR-21-027"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@fortinet.com",
          "ID": "CVE-2021-24020",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Fortinet FortiMail",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "FortiMail 6.4.0 through 6.4.4, and 6.2.0 through 6.2.7"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Fortinet"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A missing cryptographic step in the implementation of the hash digest algorithm in FortiMail 6.4.0 through 6.4.4, and 6.2.0 through 6.2.7 may allow an unauthenticated attacker to tamper with signed URLs by appending further data which allows bypass of signature verification."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "High",
            "attackVector": "Network",
            "availabilityImpact": "High",
            "baseScore": 6.9,
            "baseSeverity": "Medium",
            "confidentialityImpact": "High",
            "integrityImpact": "High",
            "privilegesRequired": "Low",
            "scope": "Unchanged",
            "userInteraction": "None",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Improper Access Control"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://fortiguard.com/advisory/FG-IR-21-027",
              "refsource": "CONFIRM",
              "url": "https://fortiguard.com/advisory/FG-IR-21-027"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
    "assignerShortName": "fortinet",
    "cveId": "CVE-2021-24020",
    "datePublished": "2021-07-09T18:17:26.000Z",
    "dateReserved": "2021-01-13T00:00:00.000Z",
    "dateUpdated": "2024-10-25T13:57:25.857Z",
    "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.

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.

Action not permitted

CNVD-2021-50165

CVE-2021-24020 (GCVE-0-2021-24020)

Tags

Sightings

Nomenclature

Related by attack behaviour