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[email protected]CVE-2020-16930

HistoryOct 16, 2020 - 11:15 p.m.

CVE-2020-16930

2020-10-1623:15:15

CWE-787

CWE-824

[email protected]

web.nvd.nist.gov

122

microsoft

excel

remote code execution

vulnerability

cve-2020-16930

nvd

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.024

Percentile

89.9%

JSON

A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.
Exploitation of the vulnerability requires that a user open a specially crafted file with an affected version of Microsoft Excel. In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file. In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) containing a specially crafted file designed to exploit the vulnerability. An attacker would have no way to force users to visit the website. Instead, an attacker would have to convince users to click a link, typically by way of an enticement in an email or instant message, and then convince them to open the specially crafted file.
The security update addresses the vulnerability by correcting how Microsoft Excel handles objects in memory.

Affected configurations

Vulners

NVD

Node

microsoftofficeMatch2019

Node

microsoft365_appsMatch-

Node

microsoftofficeMatch2016

Node

microsoftofficeMatch2013sp1

VendorProductVersionCPE
microsoftmicrosoft_office_201919.0.0cpe:2.3:a:microsoft:microsoft_office_2019:19.0.0:*:*:*:*:*:*:*
microsoft365_apps16.0.1cpe:2.3:a:microsoft:365_apps:16.0.1:*:*:*:*:*:*:*
microsoftmicrosoft_office_201616.0.0cpe:2.3:a:microsoft:microsoft_office_2016:16.0.0:*:*:*:*:*:*:*
microsoftoffice*cpe:2.3:a:microsoft:office:*:*:*:*:service:*:*:*

Vendor	Product	Version	CPE
microsoft	microsoft_office_2019	19.0.0	cpe:2.3:a:microsoft:microsoft_office_2019:19.0.0:::::::*
microsoft	365_apps	16.0.1	cpe:2.3:a:microsoft:365_apps:16.0.1:::::::*
microsoft	microsoft_office_2016	16.0.0	cpe:2.3:a:microsoft:microsoft_office_2016:16.0.0:::::::*
microsoft	office	*	cpe:2.3:a:microsoft:office:::::service:::*

CNA Affected

[
  {
    "vendor": "Microsoft",
    "product": "Microsoft Office 2019",
    "cpes": [
      "cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:*:*"
    ],
    "platforms": [
      "32-bit Systems",
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "19.0.0",
        "lessThan": "https://aka.ms/OfficeSecurityReleases",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft 365 Apps for Enterprise",
    "cpes": [
      "cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:*:*"
    ],
    "platforms": [
      "32-bit Systems",
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "16.0.1",
        "lessThan": "https://aka.ms/OfficeSecurityReleases",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft Office 2016",
    "cpes": [
      "cpe:2.3:a:microsoft:office:2016:*:*:*:*:*:x86:*",
      "cpe:2.3:a:microsoft:office:2016:*:*:*:*:*:x64:*"
    ],
    "platforms": [
      "32-bit Systems",
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "16.0.0",
        "lessThan": "publication",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft Office 2013 Service Pack 1",
    "cpes": [
      "cpe:2.3:a:microsoft:office:2013:sp1:*:*:rt:*:*:*",
      "cpe:2.3:a:microsoft:office:2013:sp1:*:*:*:*:x86:*",
      "cpe:2.3:a:microsoft:office:2013:sp1:*:*:*:*:x64:*"
    ],
    "platforms": [
      "ARM64-based Systems",
      "32-bit Systems",
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "15.0.0",
        "lessThan": "publication",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  }
]