Vulnerability-Lookup

CNVD-2020-68536

Vulnerability from cnvd - Published: 2020-12-02

Title

Microsoft Office即点即用 (C2R) AppVLP权限提升漏洞

Description

Microsoft Office是美国微软（Microsoft）公司的一款办公软件套件产品。该产品常用组件包括Word、Excel、Access、Powerpoint、FrontPage等。 Microsoft Office即点即用(C2R) AppVLP存在安全漏洞，该漏洞源于处理特定文件的方式存在特权提升漏洞。攻击者可利用该漏洞获得特权提升。

Severity

中

Patch Name

Microsoft Office即点即用 (C2R) AppVLP权限提升漏洞的补丁

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://portal.msrc.microsoft.com/en-us/security-guidance/releasenotedetail/2020-oct

Reference

https://portal.msrc.microsoft.com/en-us/security-guidance/releasenotedetail/2020-oct

Impacted products

Name
['Microsoft Office 2019', 'Microsoft 365 Apps', 'Microsoft Office 2013 Click-to-Run']

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-16934",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-16934"
    }
  },
  "description": "Microsoft Office\u662f\u7f8e\u56fd\u5fae\u8f6f\uff08Microsoft\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u529e\u516c\u8f6f\u4ef6\u5957\u4ef6\u4ea7\u54c1\u3002\u8be5\u4ea7\u54c1\u5e38\u7528\u7ec4\u4ef6\u5305\u62ecWord\u3001Excel\u3001Access\u3001Powerpoint\u3001FrontPage\u7b49\u3002\n\nMicrosoft Office\u5373\u70b9\u5373\u7528(C2R) AppVLP\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5904\u7406\u7279\u5b9a\u6587\u4ef6\u7684\u65b9\u5f0f\u5b58\u5728\u7279\u6743\u63d0\u5347\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u5f97\u7279\u6743\u63d0\u5347\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://portal.msrc.microsoft.com/en-us/security-guidance/releasenotedetail/2020-oct",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-68536",
  "openTime": "2020-12-02",
  "patchDescription": "Microsoft Office\u662f\u7f8e\u56fd\u5fae\u8f6f\uff08Microsoft\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u529e\u516c\u8f6f\u4ef6\u5957\u4ef6\u4ea7\u54c1\u3002\u8be5\u4ea7\u54c1\u5e38\u7528\u7ec4\u4ef6\u5305\u62ecWord\u3001Excel\u3001Access\u3001Powerpoint\u3001FrontPage\u7b49\u3002\r\n\r\nMicrosoft Office\u5373\u70b9\u5373\u7528(C2R) AppVLP\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5904\u7406\u7279\u5b9a\u6587\u4ef6\u7684\u65b9\u5f0f\u5b58\u5728\u7279\u6743\u63d0\u5347\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u5f97\u7279\u6743\u63d0\u5347\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 Office\u5373\u70b9\u5373\u7528 (C2R) AppVLP\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Microsoft Office 2019",
      "Microsoft 365 Apps",
      "Microsoft Office 2013 Click-to-Run"
    ]
  },
  "referenceLink": "https://portal.msrc.microsoft.com/en-us/security-guidance/releasenotedetail/2020-oct",
  "serverity": "\u4e2d",
  "submitTime": "2020-10-30",
  "title": "Microsoft Office\u5373\u70b9\u5373\u7528 (C2R) AppVLP\u6743\u9650\u63d0\u5347\u6f0f\u6d1e"
}

CVE-2020-16934 (GCVE-0-2020-16934)

Vulnerability from cvelistv5 – Published: 2020-10-16 22:17 – Updated: 2024-08-04 13:45

Title

Microsoft Office Click-to-Run Elevation of Privilege Vulnerability

Summary

An elevation of privilege vulnerability exists in the way that Microsoft Office Click-to-Run (C2R) AppVLP handles certain files. An attacker who successfully exploited the vulnerability could elevate privileges. To exploit this vulnerability, an attacker would need to convince a user to open a specially crafted file. The security update addresses the vulnerability by correcting how Microsoft Office Click-to-Run (C2R) components handle these files.

Severity

7 (High)


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

CWE

Elevation of Privilege

Assigner

microsoft mitre root

References

1 reference

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

Impacted products

3 products

Vendor	Product	Version
Microsoft	Microsoft Office 2013 Click-to-Run (C2R)	Affected: 15.0.0.0 , < 15.0.5571.1000 (custom) cpe:2.3:a:microsoft:office:2013::::click-to-run::x86:* cpe:2.3:a:microsoft:office:2013::::click-to-run::x64:*
Microsoft	Microsoft Office 2019	Affected: 19.0.0 , < https://aka.ms/OfficeSecurityReleases (custom) cpe:2.3:a:microsoft:office:2019:::::::*
Microsoft	Microsoft 365 Apps for Enterprise	Affected: 16.0.1 , < https://aka.ms/OfficeSecurityReleases (custom) cpe:2.3:a:microsoft:365_apps:-::::enterprise:::

Date Public

2020-10-13 07:00

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T13:45:34.761Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16934"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:microsoft:office:2013:*:*:*:click-to-run:*:x86:*",
            "cpe:2.3:a:microsoft:office:2013:*:*:*:click-to-run:*:x64:*"
          ],
          "platforms": [
            "32-bit Systems",
            "x64-based Systems"
          ],
          "product": "Microsoft Office 2013 Click-to-Run (C2R)",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "15.0.5571.1000",
              "status": "affected",
              "version": "15.0.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:*:*"
          ],
          "platforms": [
            "32-bit Systems",
            "x64-based Systems"
          ],
          "product": "Microsoft Office 2019",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "https://aka.ms/OfficeSecurityReleases",
              "status": "affected",
              "version": "19.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:*:*"
          ],
          "platforms": [
            "32-bit Systems",
            "x64-based Systems"
          ],
          "product": "Microsoft 365 Apps for Enterprise",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "https://aka.ms/OfficeSecurityReleases",
              "status": "affected",
              "version": "16.0.1",
              "versionType": "custom"
            }
          ]
        }
      ],
      "datePublic": "2020-10-13T07:00:00.000Z",
      "descriptions": [
        {
          "lang": "en-US",
          "value": "\u003cp\u003eAn elevation of privilege vulnerability exists in the way that Microsoft Office Click-to-Run (C2R) AppVLP handles certain files. An attacker who successfully exploited the vulnerability could elevate privileges.\u003c/p\u003e\n\u003cp\u003eTo exploit this vulnerability, an attacker would need to convince a user to open a specially crafted file.\u003c/p\u003e\n\u003cp\u003eThe security update addresses the vulnerability by correcting how Microsoft Office Click-to-Run (C2R) components handle these files.\u003c/p\u003e"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
            }
          ]
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      ],
      "problemTypes": [
        {
          "descriptions": [
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              "description": "Elevation of Privilege",
              "lang": "en-US",
              "type": "Impact"
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      "providerMetadata": {
        "dateUpdated": "2023-12-31T19:19:55.594Z",
        "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-2020-16934"
        }
      ],
      "title": "Microsoft Office Click-to-Run Elevation of Privilege Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
    "assignerShortName": "microsoft",
    "cveId": "CVE-2020-16934",
    "datePublished": "2020-10-16T22:17:54.000Z",
    "dateReserved": "2020-08-04T00:00:00.000Z",
    "dateUpdated": "2024-08-04T13:45:34.761Z",
    "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.