An information disclosure vulnerability exists when Microsoft Excel software reads out of bound memory due to an uninitialized variable, which could disclose the contents of memory, aka "Microsoft Excel Information Disclosure Vulnerability." This affects Microsoft Office, Office 365 ProPlus, Microsoft Excel, Microsoft Excel Viewer, Excel. This CVE ID is unique from CVE-2018-8598.

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. 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. (CVE-2018-8597)

  - An information disclosure vulnerability exists when Microsoft     Excel software reads out of bound memory due to an uninitialized     variable, which could disclose the contents of memory. An     attacker who successfully exploited the vulnerability could view     out of bound memory. (CVE-2018-8627)

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

  - An information disclosure vulnerability exists when     Microsoft Excel software reads out of bound memory due     to an uninitialized variable, which could disclose the     contents of memory. An attacker who successfully     exploited the vulnerability could view out of bound     memory. Exploitation of the vulnerability requires that     a user open a specially crafted file with an affected     version of Microsoft Excel software. The security update     addresses the vulnerability by properly initializing the     affected variable. (CVE-2018-8627)

  - 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-2018-8597, CVE-2018-8636)

  - 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-2018-8598)

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

  - An information disclosure vulnerability exists when     Microsoft Excel software reads out of bound memory due     to an uninitialized variable, which could disclose the     contents of memory. An attacker who successfully     exploited the vulnerability could view out of bound     memory. Exploitation of the vulnerability requires that     a user open a specially crafted file with an affected     version of Microsoft Excel software. The security update     addresses the vulnerability by properly initializing the     affected variable. (CVE-2018-8627)

  - An elevation of privilege vulnerability exists when     Microsoft SharePoint Server does not properly sanitize a     specially crafted authentication request to an affected     SharePoint server. An attacker who successfully     exploited this vulnerability could execute malicious     code on a vulnerable server in the context of the     SharePoint application pool account.  (CVE-2018-8635)

  - An information disclosure vulnerability exists where     certain modes of the search function in Microsoft     SharePoint Server are vulnerable to cross-site search     attacks (a variant of cross-site request forgery, CSRF).
    When users are simultaneously logged in to Microsoft     SharePoint Server and visit a malicious web page, the     attacker can, through standard browser functionality,     induce the browser to invoke search queries as the     logged in user. While the attacker cant access the     search results or documents as such, the attacker can     determine whether the query did return results or not,     and thus by issuing targeted queries discover facts     about documents that are searchable for the logged-in     user. The security update addresses the vulnerability by     running the search queries in a way that doesnt expose     them to this browser vulnerability. (CVE-2018-8580)

  - A remote code execution vulnerability exists in     Microsoft PowerPoint 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-2018-8628)

The Microsoft Office application installed on the remote macOS or Mac OS X host is missing a security update. It is, therefore, affected by the following vulnerability:

  - 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. (CVE-2018-8597)

  - An information disclosure vulnerability exists when Microsoft   Excel software reads out of bound memory due to an uninitialized   variable, which could disclose the contents of memory. An attacker   who successfully exploited the vulnerability could view out of   bound memory.

  Exploitation of the vulnerability requires that a user open a   specially crafted file with an affected version of Microsoft Excel   software. (CVE-2018-8627)

  - A remote code execution vulnerability exists in Microsoft   PowerPoint 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   Office PowerPoint software. 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) that contains 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. (CVE-2018-8628)

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

  - An information disclosure vulnerability exists when     Microsoft Excel software reads out of bound memory due     to an uninitialized variable, which could disclose the     contents of memory. An attacker who successfully     exploited the vulnerability could view out of bound     memory. Exploitation of the vulnerability requires that     a user open a specially crafted file with an affected     version of Microsoft Excel software. The security update     addresses the vulnerability by properly initializing the     affected variable. (CVE-2018-8627)

  - A remote code execution vulnerability exists in     Microsoft PowerPoint 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-2018-8628)

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

  - An information disclosure vulnerability exists when     Microsoft Excel software reads out of bound memory due     to an uninitialized variable, which could disclose the     contents of memory. An attacker who successfully     exploited the vulnerability could view out of bound     memory. Exploitation of the vulnerability requires that     a user open a specially crafted file with an affected     version of Microsoft Excel software. The security update     addresses the vulnerability by properly initializing the     affected variable. (CVE-2018-8627)

  - 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-2018-8597)

  - A remote code execution vulnerability exists in     Microsoft PowerPoint 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-2018-8628)

ID	Name	Product	Family	Severity
162079	Security Updates for Microsoft Office Products C2R (December 2018)	Nessus	Windows	high
162063	Security Updates for Microsoft Excel Products C2R (December 2018)	Nessus	Windows	high
119686	Security Updates for Microsoft Sharepoint Server (December 2018)	Nessus	Windows : Microsoft Bulletins	high
119614	Security Update for Microsoft Office (December 2018) (macOS)	Nessus	MacOS X Local Security Checks	high
119609	Security Updates for Microsoft Office Viewer Products (December 2018)	Nessus	Windows : Microsoft Bulletins	high
119596	Security Updates for Microsoft Office Compatibility Products (December 2018)	Nessus	Windows : Microsoft Bulletins	high
119595	Security Updates for Microsoft Office Products (December 2018)	Nessus	Windows : Microsoft Bulletins	high
119592	Security Updates for Microsoft Excel Products (December 2018)	Nessus	Windows : Microsoft Bulletins	high

Detections

Analytics

CVE-2018-8627

medium

Tenable Plugins

high

high

high

high

high

high

high

high