CVE-2020-0697 Privilege escalation in Office 365 ProPlus
An authenticated attacker can escalate privileges to SYSTEM by placing a crafted file, enabling arbitrary file corruption in Microsoft Office.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-0697?
CVE-2020-0697 is a high-severity vulnerability in Microsoft Office 365 Proplus, published on 11 Feb 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An elevation of privilege vulnerability exists in Microsoft Office OLicenseHeartbeat task, where an attacker who successfully exploited this vulnerability could run this task as SYSTEM.To exploit the vulnerability, an authenticated attacker would need to place a specially crafted file in a specific location, thereby allowing arbitrary file corruption.The security update addresses the vulnerability by correcting how the process validates the log file., aka 'Microsoft Office Tampering Vulnerability'.
Which versions are affected by CVE-2020-0697?
It affects 1 product.
Products include Microsoft Office 365 Proplus.
How do I fix CVE-2020-0697?
No fix has been published for CVE-2020-0697 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-0697 being exploited?
There is no known exploitation of CVE-2020-0697 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Office 365 Proplus
Sources
Also known as GHSA-2cgq-hh5m-vc66.