An information disclosure vulnerability exists when Microsoft Excel improperly discloses the contents of its memory, aka 'Microsoft Excel Information Disclosure Vulnerability'.

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

  - An information disclosure vulnerability exists in     Microsoft Office software when the software fails to     properly handle objects in memory. An attacker who     successfully exploited this vulnerability could obtain     information to further compromise the users system.
    (CVE-2019-1402)

  - 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-2019-1448)

  - A security feature bypass vulnerability exists in the     way that Office Click-to-Run (C2R) components handle a     specially crafted file, which could lead to a standard     user, any AppContainer sandbox, and Office LPAC     Protected View to escalate privileges to SYSTEM.
    (CVE-2019-1449)

  - An information disclosure vulnerability exists when     Microsoft Excel improperly discloses the contents of its     memory. An attacker who exploited the vulnerability     could use the information to compromise the users     computer or data.  (CVE-2019-1446)

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-2019-1448)

  - An information disclosure vulnerability exists when     Microsoft Excel improperly discloses the contents of its     memory. An attacker who exploited the vulnerability     could use the information to compromise the users     computer or data.  (CVE-2019-1446)

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

 - An information disclosure vulnerability exists in Microsoft SharePoint when an attacker uploads a specially crafted file to the SharePoint Server.

 - A security feature bypass vulnerability exists when Microsoft SharePoint does not validate URLs.

 - An information disclosure vulnerability exists when Microsoft SharePoint improperly discloses the contents of its memory.

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 application installed on the remote macOS or Mac OS X host is missing a security update. It is, therefore, affected by multiple vulnerabilities:

  - An information disclosure vulnerability exists when Microsoft Excel improperly discloses the contents of     its memory. An attacker who exploited the vulnerability could use the information to compromise the user’s     computer or data. To exploit the vulnerability, an attacker could craft a special document file and then     convince the user to open it. An attacker must know the memory address location where the object was     created. (CVE-2019-1446)

  - 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 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. (CVE-2019-1448)

  - A security feature bypass vulnerability exists in Microsoft Office software by not enforcing macro     settings on an Excel document. The security feature bypass by itself does not allow arbitrary code     execution. To successfully exploit the vulnerability, an attacker would have to embed a control in an     Excel worksheet that specifies a macro should be run. To exploit the vulnerability, an attacker would have     to convince a user to open a specially crafted file with an affected version of Microsoft Office software.
    (CVE-2019-1457)

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

  - A spoofing vulnerability exists when Office Online does     not validate origin in cross-origin communications     handlers correctly. An attacker could exploit the     vulnerability by sending a specially crafted request to     an affected site. The attacker who successfully     exploited the vulnerability could then perform cross-     origin attacks on affected systems. These attacks could     allow the attacker to read content that the attacker is     not authorized to read, and use the victim's identity to     take actions on the site on behalf of the victim. The     victim needs to be authenticated for an attacker to     compromise the victim. The security update addresses the     vulnerability by ensuring that Office Online properly     validates origins. (CVE-2019-1445, CVE-2019-1447)

  - An information disclosure vulnerability exists when     Microsoft Excel improperly discloses the contents of its     memory. An attacker who exploited the vulnerability     could use the information to compromise the users     computer or data.  (CVE-2019-1446)

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

  - A security feature bypass vulnerability exists when     Microsoft Office does not validate URLs. An attacker     could send a victim a specially crafted file, which     could trick the victim into entering credentials. An     attacker who successfully exploited this vulnerability     could perform a phishing attack. The update addresses     the vulnerability by ensuring Microsoft Office properly     validates URLs. (CVE-2019-1442)

  - An information disclosure vulnerability exists in     Microsoft SharePoint when an attacker uploads a     specially crafted file to the SharePoint Server. An     authenticated attacker who successfully exploited this     vulnerability could potentially leverage SharePoint     functionality to obtain SMB hashes. The security update     addresses the vulnerability by correcting how SharePoint     checks file content. (CVE-2019-1443)

  - An information disclosure vulnerability exists when     Microsoft Excel improperly discloses the contents of its     memory. An attacker who exploited the vulnerability     could use the information to compromise the users     computer or data.  (CVE-2019-1446)

  - An information disclosure vulnerability exists in     Microsoft SharePoint when an attacker sends a specially     crafted API request to the SharePoint Server. An     authenticated attacker who successfully exploited this     vulnerability could potentially read arbitrary files     on the server. The security update     addresses the vulnerability by changing how     affected APIs process requests. (CVE-2019-1491)

ID	Name	Product	Family	Severity
162111	Security Updates for Microsoft Office Products C2R (November 2019)	Nessus	Windows	critical
162105	Security Updates for Microsoft Excel Products C2R (November 2019)	Nessus	Windows	high
112327	Microsoft SharePoint Server 2013 build < 15.0.5189.1000 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	high
112326	Microsoft SharePoint Server 2019 build < 16.0.10352.20000 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	high
112325	Microsoft SharePoint Server 2016 build < 16.0.4927.1000 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	high
130968	Security Updates for Microsoft Office Products (November 2019) (macOS)	Nessus	MacOS X Local Security Checks	high
130915	Security Updates for Microsoft Office Online Server (November 2019)	Nessus	Windows : Microsoft Bulletins	medium
130914	Security Updates for Microsoft SharePoint Server (November 2019)	Nessus	Windows : Microsoft Bulletins	high
130913	Security Updates for Microsoft Office Products (November 2019)	Nessus	Windows : Microsoft Bulletins	critical
130911	Security Updates for Microsoft Excel Products (November 2019)	Nessus	Windows : Microsoft Bulletins	high

Detections

Analytics

CVE-2019-1446

medium

Tenable Plugins

critical

high

high

high

high

high

medium

high

critical

high