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.

The Microsoft Excel Products are missing security updates.
It is, therefore, affected by multiple vulnerabilities :

  - 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.  (CVE-2020-16929, CVE-2020-16931,     CVE-2020-16932)

The Microsoft Office Products are missing security updates. It is, therefore, affected by multiple vulnerabilities :

  - 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. (CVE-2020-16929,     CVE-2020-16930)

  - A remote code execution vulnerability exists in Microsoft Office 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. (CVE-2020-16954)

  - A remote code execution vulnerability exists when the Microsoft Office Access Connectivity Engine improperly     handles objects in memory. An attacker who successfully exploited this vulnerability could execute arbitrary     code on a victim system.(CVE-2020-16957)

According to its self-reported version number, the Microsoft SharePoint application running on the remote host is affected by multiple vulnerabilities :

- A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory.

- A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application package.

- An information disclosure vulnerability exists when Microsoft SharePoint Server fails to properly handle objects in memory.

- An information disclosure vulnerability exists when Microsoft SharePoint Server improperly discloses its folder structure when rendering specific web pages.

- A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server.

- This vulnerability is caused when SharePoint Server does not properly sanitize a specially crafted request to an affected SharePoint server.

Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number.

The Microsoft Office product installed on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities:

  - A remote code execution vulnerability exists when the Base3D rendering engine handles memory. An attacker     who successfully exploited the vulnerability would gain execution on a victim system. (CVE-2020-16918)

  - 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. (CVE-2020-16929)

  - A security feature bypass vulnerability exists in Microsoft Word software when it fails to properly handle     .LNK files. An attacker who successfully exploited the vulnerability could use a specially crafted file to     perform actions in the security context of the current user. (CVE-2020-16933)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Microsoft SharePoint Server 2010 installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities :

  - A cross-site-scripting (XSS) vulnerability exists when     Microsoft SharePoint Server does not properly sanitize a     specially crafted web request to an affected SharePoint     server. An authenticated attacker could exploit the     vulnerability by sending a specially crafted request to     an affected SharePoint server. The attacker who     successfully exploited the vulnerability could then     perform cross-site scripting attacks on affected systems     and run script in the security context of the current     user. The attacks could allow the attacker to read     content that the attacker is not authorized to read, use     the victim's identity to take actions on the SharePoint     site on behalf of the user, such as change permissions     and delete content, and inject malicious content in the     browser of the user. The security update addresses the     vulnerability by helping to ensure that SharePoint     Server properly sanitizes web requests. (CVE-2020-16946)

  - An information disclosure vulnerability exists when     Microsoft SharePoint Server fails to properly handle     objects in memory. An attacker who successfully     exploited this vulnerability could obtain information to     further compromise the users system.  (CVE-2020-16948,     CVE-2020-16953)

  - An information disclosure vulnerability exists when     Microsoft SharePoint Server improperly discloses its     folder structure when rendering specific web pages. An     attacker who took advantage of this information     disclosure could view the folder path of scripts loaded     on the page. To take advantage of the vulnerability, an     attacker would require access to the specific SharePoint     page affected by this vulnerability. The security update     addresses the vulnerability by correcting how scripts     are referenced on some SharePoint pages.
    (CVE-2020-16941, CVE-2020-16942)

  - 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.  (CVE-2020-16929)

The Microsoft SharePoint Server 2013 installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities :

  - An information disclosure vulnerability exists when     Microsoft SharePoint Server fails to properly handle     objects in memory. An attacker who successfully     exploited this vulnerability could obtain information to     further compromise the users system.  (CVE-2020-16948,     CVE-2020-16953)

  - A cross-site-scripting (XSS) vulnerability exists when     Microsoft SharePoint Server does not properly sanitize a     specially crafted web request to an affected SharePoint     server. An authenticated attacker could exploit the     vulnerability by sending a specially crafted request to     an affected SharePoint server. The attacker who     successfully exploited the vulnerability could then     perform cross-site scripting attacks on affected systems     and run script in the security context of the current     user. The attacks could allow the attacker to read     content that the attacker is not authorized to read, use     the victim's identity to take actions on the SharePoint     site on behalf of the user, such as change permissions     and delete content, and inject malicious content in the     browser of the user. The security update addresses the     vulnerability by helping to ensure that SharePoint     Server properly sanitizes web requests. (CVE-2020-16945,     CVE-2020-16946)

  - An information disclosure vulnerability exists when     Microsoft SharePoint Server improperly discloses its     folder structure when rendering specific web pages. An     attacker who took advantage of this information     disclosure could view the folder path of scripts loaded     on the page. To take advantage of the vulnerability, an     attacker would require access to the specific SharePoint     page affected by this vulnerability. The security update     addresses the vulnerability by correcting how scripts     are referenced on some SharePoint pages.
    (CVE-2020-16941, CVE-2020-16942)

  - 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.  (CVE-2020-16929)

  - A remote code execution vulnerability exists in     Microsoft SharePoint when the software fails to check     the source markup of an application package. An attacker     who successfully exploited the vulnerability could run     arbitrary code in the context of the SharePoint     application pool and the SharePoint server farm account.
    Exploitation of this vulnerability requires that a user     uploads a specially crafted SharePoint application     package to an affected version of SharePoint. The     security update addresses the vulnerability by     correcting how SharePoint checks the source markup of     application packages. (CVE-2020-16951, CVE-2020-16952)

  - This vulnerability is caused when SharePoint Server does     not properly sanitize a specially crafted request to an     affected SharePoint server. An authenticated attacker     could exploit this vulnerability by sending a specially     crafted request to an affected SharePoint server. The     attacker who successfully exploited this vulnerability     could then perform cross-site scripting attacks on     affected systems and run script in the security context     of the current user. These attacks could allow the     attacker to read content that the attacker is not     authorized to read, use the victim's identity to take     actions on the SharePoint site on behalf of the victim,     such as change permissions, delete content, steal     sensitive information (such as browser cookies) and     inject malicious content in the browser of the victim.
    For this vulnerability to be exploited, a user must     click a specially crafted URL that takes the user to a     targeted SharePoint Web App site. In an email attack     scenario, an attacker could exploit the vulnerability by     sending an email message containing the specially     crafted URL to the user of the targeted SharePoint Web     App site and convincing the user to click the specially     crafted URL.  (CVE-2020-16944)

The Microsoft Office Web Apps installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities :

  - 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.  (CVE-2020-16929, CVE-2020-16931,     CVE-2020-16932)

ID	Name	Product	Family	Type	Severity
162085	Security Updates for Microsoft Excel Products C2R (October 2020)	Nessus	Windows	Local	high
162022	Security Updates for Microsoft Office Products C2R (October 2020)	Nessus	Windows	Local	high
112740	Microsoft SharePoint Server 2013 < 15.0.5285.1000 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	Version Based	high
112739	Microsoft SharePoint Server 2016 < 16.0.5071.1000 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	Version Based	high
112738	Microsoft SharePoint Server 2019 < 16.0.10367.20000 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	Version Based	high
112737	Microsoft SharePoint Server 2010 < 14.0.7261.5000 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	Version Based	high
141470	Security Updates for Microsoft Office (October 2020) (macOS)	Nessus	MacOS X Local Security Checks	Local	high
141435	Security Updates for Microsoft SharePoint Server 2010 (October 2020)	Nessus	Windows : Microsoft Bulletins	Local	high
141425	Security Updates for Microsoft SharePoint Server 2013 (October 2020)	Nessus	Windows : Microsoft Bulletins	Local	high
141421	Security Updates for Microsoft Office Online Server and Microsoft Office Web Apps (October 2020)	Nessus	Windows : Microsoft Bulletins	Local	high
141418	Security Updates for Microsoft Office Products (October 2020)	Nessus	Windows : Microsoft Bulletins	Local	high
141417	Security Updates for Microsoft Excel Products (October 2020)	Nessus	Windows : Microsoft Bulletins	Local	high

Detections

Analytics

CVE-2020-16929

high

Tenable Plugins

high

high

high

high

high

high

high

high

high

high

high

high