CVE-2019-1069 Microsoft Task Scheduler Privilege Escalation

Exploited in the wild High 7.8 Published Updated

An attacker with local code execution can exploit improper file operation validation in the Task Scheduler Service to gain elevated privileges on Windows systems.

Exploited in the wild
Since 15 Mar 2022
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2019-1069?

CVE-2019-1069 is a high-severity vulnerability in Microsoft Windows 10 1507, published on 12 Jun 2019. 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 the way the Task Scheduler Service validates certain file operations. An attacker who successfully exploited the vulnerability could gain elevated privileges on a victim system. To exploit the vulnerability, an attacker would require unprivileged code execution on a victim system. The security update addresses the vulnerability by correctly validating file operations.

Weakness: CWE-59

Which versions are affected by CVE-2019-1069?

It affects 11 products.

Products include Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1703, Microsoft Windows 10 1709, Microsoft Windows 10 1803, Microsoft Windows 10 1809 and 5 more.

How do I fix CVE-2019-1069?

No fix has been published for CVE-2019-1069 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 5 Apr 2022.

Is CVE-2019-1069 being exploited?

Yes. Attackers have exploited CVE-2019-1069 in the wild since at least 15 Mar 2022, including in ransomware campaigns.

Public exploit code: 1 proofs of concept on GitHub.

All Microsoft Windows 10 1507 vulnerabilities

Sources

Also known as GHSA-gf8w-3v8h-w6hr.

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