A remote code execution vulnerability exists in Microsoft Excel 2010 Service Pack 2, Microsoft Excel 2013 Service Pack 1, Microsoft Excel 2013 RT Service Pack 1, Microsoft Excel 2016, Microsoft Office Web Apps 2013, Microsoft Excel for Mac 2011, Microsoft Excel 2016 for Mac, and Microsoft Office Compatibility Pack Service Pack 3, when they fail to properly handle objects in memory, aka "Microsoft Office Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-8630, CVE-2017-8631, and CVE-2017-8744.

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

  - A remote code execution vulnerability exists in     Microsoft Office software when it fails to properly     handle objects in memory. An attacker who successfully     exploited the vulnerability could use a specially     crafted file to perform actions in the security context     of the current user. For example, the file could then     take actions on behalf of the logged-on user with the     same permissions as the current user. Exploitation of     this vulnerability requires that a user open a specially     crafted file with an affected version of Microsoft     Office 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 that is     designed to exploit the vulnerability. However, an     attacker would have no way to force the user to visit     the website. Instead, an attacker would have to convince     the user to click a link, typically by way of an     enticement in an email or Instant Messenger message, and     then convince the user to open the specially crafted     file. The security update addresses the vulnerability by     correcting how Microsoft Office handles files in memory.
    (CVE-2017-8631, CVE-2017-8632)

Microsoft Office Compatibility Pack SP3 is missing security updates.
It is, therefore, affected by multiple vulnerabilities :

  - A remote code execution vulnerability exists in     Microsoft Office software when it fails to properly     handle objects in memory. An attacker who successfully     exploited the vulnerability could use a specially     crafted file to perform actions in the security context     of the current user. For example, the file could then     take actions on behalf of the logged-on user with the     same permissions as the current user. Exploitation of     this vulnerability requires that a user open a specially     crafted file with an affected version of Microsoft     Office 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 that is     designed to exploit the vulnerability. However, an     attacker would have no way to force the user to visit     the website. Instead, an attacker would have to convince     the user to click a link, typically by way of an     enticement in an email or Instant Messenger message, and     then convince the user to open the specially crafted     file. The security update addresses the vulnerability by     correcting how Microsoft Office handles files in memory.
    (CVE-2017-8631, CVE-2017-8632)

  - 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. 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 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. Note that the Preview Pane     is not an attack vector for this vulnerability. The     security update addresses the vulnerability by     correcting how Office handles objects in memory.
    (CVE-2017-8742)

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 vulnerabilities:

  - 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. 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 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. Note that the Preview Pane     is not an attack vector for this vulnerability. The     security update addresses the vulnerability by     correcting how Office handles objects in memory.
    (CVE-2017-8567)

  - A remote code execution vulnerability exists in     Microsoft Office software when it fails to properly     handle objects in memory. An attacker who successfully     exploited the vulnerability could use a specially     crafted file to perform actions in the security context     of the current user. For example, the file could then     take actions on behalf of the logged-on user with the     same permissions as the current user. Exploitation of     this vulnerability requires that a user open a specially     crafted file with an affected version of Microsoft     Office 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 that is     designed to exploit the vulnerability. However, an     attacker would have no way to force the user to visit     the website. Instead, an attacker would have to convince     the user to click a link, typically by way of an     enticement in an email or Instant Messenger message, and     then convince the user to open the specially crafted     file. The security update addresses the vulnerability by     correcting how Microsoft Office handles files in memory.
    (CVE-2017-8631, CVE-2017-8632)

  - An information disclosure vulnerability exists in the     way that the Windows Graphics Device Interface (GDI)     handles objects in memory, allowing an attacker to     retrieve information from a targeted system. By itself,     the information disclosure does not allow arbitrary code     execution; however, it could allow arbitrary code to be     run if the attacker uses it in combination with another     vulnerability. To exploit this vulnerability, an     attacker would have to log on to an affected system and     run a specially crafted application. Note that where the     severity is indicated as Critical in the Affected     Products table, the Preview Pane is an attack vector for     this vulnerability. The security update addresses the     vulnerability by correcting how GDI handles memory     addresses. (CVE-2017-8676)

ID	Name	Product	Family	Severity
103138	Security Update for Microsoft Office Excel Products (September 2017)	Nessus	Windows : Microsoft Bulletins	high
103134	Security Updates for Microsoft Office Compatibility Pack SP3 (September 2017)	Nessus	Windows : Microsoft Bulletins	high
103126	Security Update for Microsoft Office (September 2017) (macOS)	Nessus	MacOS X Local Security Checks	high

Detections

Analytics

CVE-2017-8632

high

Tenable Plugins

high

high

high