cnvd - cnvd-2021-51485

CNVD-2021-51485

Vulnerability from cnvd - Published: 2021-07-17

Title

Microsoft Exchange Server远程代码执行漏洞（CNVD-2021-51485）

Description

Microsoft Exchange Server是Microsoft开发的邮件服务器和日历服务器。 Microsoft Exchange Server存在远程代码执行漏洞。攻击者可利用该漏洞实现远程代码执行。

Severity

高

Patch Name

Microsoft Exchange Server远程代码执行漏洞（CNVD-2021-51485）的补丁

Patch Description

Microsoft Exchange Server是Microsoft开发的邮件服务器和日历服务器。 Microsoft Exchange Server存在远程代码执行漏洞。攻击者可利用该漏洞实现远程代码执行。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://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-34473

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-34473

Impacted products

Name
['Microsoft Exchange Server 2019 Cumulative Update 8', 'Microsoft Exchange Server 2016 Cumulative Update 19', 'Microsoft Exchange Server 2019 Cumulative Update 9', 'Microsoft Exchange Server 2016 Cumulative Update 20', 'Microsoft Exchange Server 2013 Cumulative Update 23']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-34473",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-34473"
    }
  },
  "description": "Microsoft Exchange Server\u662fMicrosoft\u5f00\u53d1\u7684\u90ae\u4ef6\u670d\u52a1\u5668\u548c\u65e5\u5386\u670d\u52a1\u5668\u3002\n\nMicrosoft Exchange Server\u5b58\u5728\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5b9e\u73b0\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\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://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-34473",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-51485",
  "openTime": "2021-07-17",
  "patchDescription": "Microsoft Exchange Server\u662fMicrosoft\u5f00\u53d1\u7684\u90ae\u4ef6\u670d\u52a1\u5668\u548c\u65e5\u5386\u670d\u52a1\u5668\u3002\r\n\r\nMicrosoft Exchange Server\u5b58\u5728\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5b9e\u73b0\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\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\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\uff08CNVD-2021-51485\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Microsoft Exchange Server 2019 Cumulative Update 8",
      "Microsoft Exchange Server 2016 Cumulative Update 19",
      "Microsoft Exchange Server 2019 Cumulative Update 9",
      "Microsoft Exchange Server 2016 Cumulative Update 20",
      "Microsoft Exchange Server 2013 Cumulative Update 23"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-34473",
  "serverity": "\u9ad8",
  "submitTime": "2021-07-15",
  "title": "Microsoft Exchange Server\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\uff08CNVD-2021-51485\uff09"
}

CVE-2021-34473 (GCVE-0-2021-34473)

Vulnerability from cvelistv5 – Published: 2021-07-14 17:54 – Updated: 2025-10-21 23:25

Summary

Microsoft Exchange Server Remote Code Execution Vulnerability

Severity ?

9.1 (Critical)


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

CWE

Remote Code Execution

Assigner

microsoft

References

URL

Tags

	https://portal.msrc.microsoft.com/en-US/security-…	x_refsource_MISC
	https://www.zerodayinitiative.com/advisories/ZDI-…	x_refsource_MISC
	http://packetstormsecurity.com/files/163895/Micro…	x_refsource_MISC

Impacted products

Vendor

Product

Version

Microsoft

Microsoft Exchange Server 2013 Cumulative Update 23

Affected: 15.00.0 , < 15.00.1497.015 (custom)
cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*

Microsoft	Microsoft Exchange Server 2019 Cumulative Update 9	Affected: 15.02.0 , < 15.02.0858.010 (custom) cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_9::::::
Microsoft	Microsoft Exchange Server 2016 Cumulative Update 20	Affected: 15.01.0 , < 15.01.2242.008 (custom) cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_20::::::
Microsoft	Microsoft Exchange Server 2016 Cumulative Update 19	Affected: 15.01.0 , < 15.01.2176.012 (custom) cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_19::::::
Microsoft	Microsoft Exchange Server 2019 Cumulative Update 8	Affected: 15.02.0 , < 15.02.0792.013 (custom) cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_8::::::

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T00:12:50.367Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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              "x_transferred"
            ],
            "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34473"
          },
          {
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              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/163895/Microsoft-Exchange-ProxyShell-Remote-Code-Execution.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-34473",
                "options": [
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                  },
                  {
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                  },
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                    "Technical Impact": "total"
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                "timestamp": "2025-02-04T15:42:23.926450Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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          },
          {
            "other": {
              "content": {
                "dateAdded": "2021-11-03",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-34473"
              },
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        "problemTypes": [
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            "time": "2021-11-03T00:00:00+00:00",
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        ],
        "title": "CISA ADP Vulnrichment"
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    "cna": {
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          "url": "http://packetstormsecurity.com/files/163895/Microsoft-Exchange-ProxyShell-Remote-Code-Execution.html"
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  "cveMetadata": {
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Sightings

Author	Source	Type	Date

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.

Action not permitted

CNVD-2021-51485

CVE-2021-34473 (GCVE-0-2021-34473)

Tags

Sightings

Nomenclature