Elevation of Privilege Vulnerability in Microsoft Office OLicenseHeartbeat Task
CVE-2020-0697

7.8HIGH

Key Information:

Vendor

Microsoft
Status
Office 365 Proplus
Vendor
CVE Published:
11 February 2020

What is CVE-2020-0697?

An elevation of privilege vulnerability exists in Microsoft Office's OLicenseHeartbeat task, which could allow an authenticated attacker to exploit the system by placing a specially crafted file in a designated location. Successfully exploiting this vulnerability enables the attacker to execute tasks with SYSTEM privileges, potentially leading to arbitrary file corruption and further exploitation. The issue is mitigated by a security update that enhances the validation process of the log file, addressing the underlying vulnerabilities in task execution.

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Affected Version(s)

Office 365 ProPlus 32-bit Systems

Office 365 ProPlus 64-bit Systems

References

https://portal.msrc.microsoft.com/en-US/security-guidance...
x_refsource_MISC

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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