CVE-2020-16932— Microsoft Excel 缓冲区错误漏洞
一分钟漏洞结论
影响对象
Microsoft Microsoft Office 2019
利用判断
利用概率较高，应尽快评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Microsoft Excel是美国微软（Microsoft）公司的一款Office套件中的电子表格处理软件。 Microsoft Excel 存在安全漏洞，该漏洞源于当软件无法正确处理内存中的对象时，该软件中存在远程执行代码漏洞。攻击者可利用该漏洞可以在当前用户的上下文中运行任意代码。以下产品及版本受到影响： Microsoft Excel 2010 SP2版本， Microsoft Excel 2013 SP1版本， Microsoft Office Online Server版本， Microsof
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一、 漏洞 CVE-2020-16932 基础信息
漏洞信息
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Vulnerability Title
Microsoft Excel Remote Code Execution Vulnerability
来源: CVE Program / CVE List V5
Vulnerability Description
<p>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.</p>
<p>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.</p>
<p>The security update addresses the vulnerability by correcting how Microsoft Excel handles objects in memory.</p>
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
Vulnerability Title
Microsoft Excel 缓冲区错误漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Microsoft Excel是美国微软（Microsoft）公司的一款Office套件中的电子表格处理软件。 Microsoft Excel 存在安全漏洞，该漏洞源于当软件无法正确处理内存中的对象时，该软件中存在远程执行代码漏洞。攻击者可利用该漏洞可以在当前用户的上下文中运行任意代码。以下产品及版本受到影响： Microsoft Excel 2010 SP2版本， Microsoft Excel 2013 SP1版本， Microsoft Office Online Server版本， Microsof
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| Microsoft | Microsoft Office 2019 | 19.0.0 ~ https://aka.ms/OfficeSecurityReleases |
cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:*:*
|
|
| Microsoft | Microsoft Office Online Server | 16.0.1 ~ publication |
cpe:2.3:a:microsoft:office_online_server:-:*:*:*:*:*:*:*
|
|
| Microsoft | Microsoft 365 Apps for Enterprise | 16.0.1 ~ https://aka.ms/OfficeSecurityReleases |
cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:*:*
|
|
| Microsoft | Microsoft Excel 2016 | 16.0.0.0 ~ publication |
cpe:2.3:a:microsoft:excel:2016:*:*:*:*:*:x86:*
|
|
| Microsoft | Microsoft Excel 2010 Service Pack 2 | 13.0.0.0 ~ publication |
cpe:2.3:a:microsoft:excel:2010:sp2:*:*:*:*:*:*
|
|
| Microsoft | Microsoft Excel 2013 Service Pack 1 | 15.0.0.0 ~ publication |
cpe:2.3:a:microsoft:excel:2013:sp1:*:*:rt:*:*:*
|
|
| Microsoft | Microsoft Office Web Apps 2013 Service Pack 1 | 15.0.0.0 ~ publication |
cpe:2.3:a:microsoft:office_web_apps:2013:sp1:*:*:*:*:*:*
|
|
二、漏洞 CVE-2020-16932 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2020-16932 厂商安全公告 (2)
-
https://www.zerodayinitiative.com/advisories/ZDI-20-1253/ x_refsource_MISC
同批安全公告 · Microsoft · 2020-10-16 · 共 89 条
| CVE-2020-1080 | 8.8 HIGH | Microsoft Windows Hyper-V 缓冲区错误漏洞 |
| CVE-2020-16898 | 8.8 HIGH | Microsoft Windows tcp/ip 安全漏洞 |
| CVE-2020-16911 | 8.8 HIGH | Microsoft Windows 图形设备接口 (GDI) 代码问题漏洞 |
| CVE-2020-16891 | 8.8 HIGH | Microsoft Windows Hyper-V 输入验证错误漏洞 |
| CVE-2020-16946 | 8.7 HIGH | Microsoft SharePoint Server 跨站脚本漏洞 |
| CVE-2020-16945 | 8.7 HIGH | Microsoft SharePoint Server 跨站脚本漏洞 |
| CVE-2020-16944 | 8.7 HIGH | Microsoft SharePoint 跨站脚本漏洞 |
| CVE-2020-16952 | 8.6 HIGH | Microsoft SharePoint 访问控制错误漏洞 |
| CVE-2020-16951 | 8.6 HIGH | Microsoft SharePoint 访问控制错误漏洞 |
| CVE-2020-16935 | 7.8 HIGH | Microsoft Windows 授权问题漏洞 |
| CVE-2020-16954 | 7.8 HIGH | Microsoft Office 缓冲区错误漏洞 |
| CVE-2020-16940 | 7.8 HIGH | Microsoft Windows 授权问题漏洞 |
| CVE-2020-16939 | 7.8 HIGH | Microsoft Windows 授权问题漏洞 |
| CVE-2020-16936 | 7.8 HIGH | Microsoft Windows 备份服务安全漏洞 |
| CVE-2020-16929 | 7.8 HIGH | Microsoft Excel 资源管理错误漏洞 |
| CVE-2020-16928 | 7.8 HIGH | Microsoft Office 授权问题漏洞 |
| CVE-2020-16924 | 7.8 HIGH | Microsoft Windows Jet 数据库引擎缓冲区错误漏洞 |
| CVE-2020-16923 | 7.8 HIGH | Microsoft Graphics Components 安全漏洞 |
| CVE-2020-16930 | 7.8 HIGH | Microsoft Excel 缓冲区错误漏洞 |
| CVE-2020-16967 | 7.8 HIGH | Microsoft Windows 缓冲区错误漏洞 |
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IV. Related Vulnerabilities
V. Comments for CVE-2020-16932
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