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.To exploit this bug, an attacker would have to run a specially crafted file, aka 'Microsoft Office ClickToRun Security Feature Bypass 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)

ID	Name	Product	Family	Type	Severity
162111	Security Updates for Microsoft Office Products C2R (November 2019)	Nessus	Windows	Local	critical
130913	Security Updates for Microsoft Office Products (November 2019)	Nessus	Windows : Microsoft Bulletins	Local	critical

Detections

Analytics

CVE-2019-1449

critical

Tenable Plugins

critical

critical