Vulnerability-Lookup

CNVD-2021-28798

Vulnerability from cnvd - Published: 2021-04-16

Title

Microsoft Exchange Server欺骗漏洞（CNVD-2021-28798）

Description

Microsoft Exchange Server是美国微软（Microsoft）公司的一套电子邮件服务程序。它提供邮件存取、储存、转发，语音邮件，邮件过滤筛选等功能。 Microsoft Exchange Server存在欺骗漏洞。目前没有详细的漏洞细节提供。

Severity

中

Patch Name

Microsoft Exchange Server欺骗漏洞（CNVD-2021-28798）的补丁

Patch Description

Microsoft Exchange Server是美国微软（Microsoft）公司的一套电子邮件服务程序。它提供邮件存取、储存、转发，语音邮件，邮件过滤筛选等功能。 Microsoft Exchange Server存在欺骗漏洞。目前没有详细的漏洞细节提供。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

用户可参考如下厂商提供的安全补丁以修复该漏洞： https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-1730

Reference

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-1730

Impacted products

Name
['Microsoft Exchange Server 2016 Cumulative Update 18', 'Microsoft Exchange Server 2019 Cumulative Update 7']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-1730",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-1730"
    }
  },
  "description": "Microsoft Exchange Server\u662f\u7f8e\u56fd\u5fae\u8f6f\uff08Microsoft\uff09\u516c\u53f8\u7684\u4e00\u5957\u7535\u5b50\u90ae\u4ef6\u670d\u52a1\u7a0b\u5e8f\u3002\u5b83\u63d0\u4f9b\u90ae\u4ef6\u5b58\u53d6\u3001\u50a8\u5b58\u3001\u8f6c\u53d1\uff0c\u8bed\u97f3\u90ae\u4ef6\uff0c\u90ae\u4ef6\u8fc7\u6ee4\u7b5b\u9009\u7b49\u529f\u80fd\u3002\n\nMicrosoft Exchange Server\u5b58\u5728\u6b3a\u9a97\u6f0f\u6d1e\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u5382\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u8865\u4e01\u4ee5\u4fee\u590d\u8be5\u6f0f\u6d1e\uff1a\r\nhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-1730",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-28798",
  "openTime": "2021-04-16",
  "patchDescription": "Microsoft Exchange Server\u662f\u7f8e\u56fd\u5fae\u8f6f\uff08Microsoft\uff09\u516c\u53f8\u7684\u4e00\u5957\u7535\u5b50\u90ae\u4ef6\u670d\u52a1\u7a0b\u5e8f\u3002\u5b83\u63d0\u4f9b\u90ae\u4ef6\u5b58\u53d6\u3001\u50a8\u5b58\u3001\u8f6c\u53d1\uff0c\u8bed\u97f3\u90ae\u4ef6\uff0c\u90ae\u4ef6\u8fc7\u6ee4\u7b5b\u9009\u7b49\u529f\u80fd\u3002\r\n\r\nMicrosoft Exchange Server\u5b58\u5728\u6b3a\u9a97\u6f0f\u6d1e\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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": "Microsoft Exchange Server\u6b3a\u9a97\u6f0f\u6d1e\uff08CNVD-2021-28798\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Microsoft Exchange Server 2016 Cumulative Update 18",
      "Microsoft Exchange Server 2019 Cumulative Update 7"
    ]
  },
  "referenceLink": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-1730",
  "serverity": "\u4e2d",
  "submitTime": "2021-02-21",
  "title": "Microsoft Exchange Server\u6b3a\u9a97\u6f0f\u6d1e\uff08CNVD-2021-28798\uff09"
}

CVE-2021-1730 (GCVE-0-2021-1730)

Vulnerability from cvelistv5 – Published: 2021-02-25 23:01 – Updated: 2024-08-03 16:18

Title

Microsoft Exchange Server Spoofing Vulnerability

Summary

A spoofing vulnerability exists in Microsoft Exchange Server which could result in an attack that would allow a malicious actor to impersonate the user. This update addresses this vulnerability. To prevent these types of attacks, Microsoft recommends customers to download inline images from different DNSdomains than the rest of OWA. Please see further instructions in the FAQ to put in place this mitigations.

Severity

5.4 (Medium)


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

CWE

Spoofing

Assigner

microsoft mitre root

References

1 reference

URL	Tags
https://portal.msrc.microsoft.com/en-US/security-…	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
Microsoft	Microsoft Exchange Server 2019 Cumulative Update 7	Affected: 15.02.0 , < publication (custom) cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_7::::::
Microsoft	Microsoft Exchange Server 2016 Cumulative Update 18	Affected: 15.01.0 , < publication (custom) cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_18::::::

Date Public

2021-02-09 08:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T16:18:11.528Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
            "tags": [
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              "x_transferred"
            ],
            "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1730"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_7:*:*:*:*:*:*"
          ],
          "platforms": [
            "x64-based Systems"
          ],
          "product": "Microsoft Exchange Server 2019 Cumulative Update 7",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "publication",
              "status": "affected",
              "version": "15.02.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_18:*:*:*:*:*:*"
          ],
          "platforms": [
            "x64-based Systems"
          ],
          "product": "Microsoft Exchange Server 2016 Cumulative Update 18",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "publication",
              "status": "affected",
              "version": "15.01.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "datePublic": "2021-02-09T08:00:00.000Z",
      "descriptions": [
        {
          "lang": "en-US",
          "value": "\u003cp\u003eA spoofing vulnerability exists in Microsoft Exchange Server which could result in an attack that would allow a malicious actor to impersonate the user.\u003c/p\u003e\n\u003cp\u003eThis update addresses this vulnerability.\u003c/p\u003e\n\u003cp\u003eTo prevent these types of attacks, Microsoft recommends customers to download inline images from different DNSdomains than the rest of OWA. Please see further instructions in the FAQ to put in place this mitigations.\u003c/p\u003e"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C",
            "version": "3.1"
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          "scenarios": [
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              "lang": "en-US",
              "value": "GENERAL"
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          ]
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      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Spoofing",
              "lang": "en-US",
              "type": "Impact"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-12-29T22:33:28.795Z",
        "orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
        "shortName": "microsoft"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1730"
        }
      ],
      "title": "Microsoft Exchange Server Spoofing Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
    "assignerShortName": "microsoft",
    "cveId": "CVE-2021-1730",
    "datePublished": "2021-02-25T23:01:30.000Z",
    "dateReserved": "2020-12-02T00:00:00.000Z",
    "dateUpdated": "2024-08-03T16:18:11.528Z",
    "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.