CVE-2019-1069: Microsoft Windows Task Scheduler Privilege Escalation Vulnerability

Published Jun 11, 2019
·
Updated

A privilege escalation vulnerability exists in the way the Task Scheduler Service validates certain file operations.

Other sources

An elevation of privilege vulnerability exists in the way the Task Scheduler Service validates certain file operations, aka 'Task Scheduler Elevation of Privilege Vulnerability'.

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.

— NVD

Affected Software

45 affected componentsFixes available
Microsoft Windows 10
Microsoft Windows 10=1607
Microsoft Windows 10=1703
Microsoft Windows 10=1709
Microsoft Windows 10=1803
Microsoft Windows 10=1809
Microsoft Windows 10=1903
Microsoft Windows Server 2016
Microsoft Windows Server 2016=1803
Microsoft Windows Server 2016=1903
Microsoft Windows Server 2019
Microsoft Windows 10 1507
Microsoft Windows 10 1607
Microsoft Windows 10 1703
Microsoft Windows 10 1709
Microsoft Windows 10 1803
Microsoft Windows 10 1809
Microsoft Windows 10 1903
Microsoft Windows Server 1803
Microsoft Windows Server 1903
Microsoft Windows Server 2019
Microsoft Windows 10=1703
Microsoft Windows 10=1809
Microsoft Windows Server 2019
Microsoft Windows 10=1803
Microsoft Windows 10=1803
Microsoft Windows 10=1803
Microsoft Windows 10=1809
Microsoft Windows 10=1809
Microsoft Windows Server=1803
Microsoft Windows 10=1703
Microsoft Windows Server 2016
Microsoft Windows Server 2016
Microsoft Windows 10=1607
Microsoft Windows 10=1607
Microsoft Windows 10
Microsoft Windows 10=1903
Microsoft Windows Server=1903
Microsoft Windows 10=1903
Microsoft Windows 10
Microsoft Windows 10=1903
Microsoft Windows 10=1709
Microsoft Windows 10=1709
Microsoft Windows 10=1709
Microsoft Task Scheduler

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch KB4503327
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch KB4503279
  3. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch KB4503286
  4. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch KB4503267
  5. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch KB4503293
  6. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch KB4503291
  7. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Patch KB4503284

Event History

Jun 11, 2019
CVE Published
via Microsoft·07:00 AM
Data Sourced
via Microsoft·07:00 AM
DescriptionSeverityWeaknessAffected Software
Jun 12, 2019
CVE Published
via MITRE·01:49 PM
Data Sourced
via MITRE·01:49 PM
DescriptionSeverity
Data Sourced
via NVD·02:29 PM
RemedyDescriptionSeverityWeaknessAffected Software
Mar 15, 2022
Kev Listed
via CISA·12:00 AM
Known Exploited
via CISA·12:00 AM
Known Ransomware
via CISA·12:00 AM
Data Sourced
via CISA·12:00 AM
DescriptionAffected Software

Frequently Asked Questions

1

What is CVE-2019-1069?

CVE-2019-1069 is an elevation of privilege vulnerability in the Task Scheduler Service of Microsoft Windows.

2

What is the severity of CVE-2019-1069?

The severity of CVE-2019-1069 is rated as high.

3

Which software is affected by CVE-2019-1069?

Microsoft Task Scheduler on Windows 10, Microsoft Windows Server 2016, and Microsoft Windows Server 2019 are affected by CVE-2019-1069.

4

How does CVE-2019-1069 work?

CVE-2019-1069 exploits a vulnerability in the way the Task Scheduler Service validates certain file operations, allowing an attacker to escalate privileges.

5

How can I fix CVE-2019-1069?

To fix CVE-2019-1069, install the security updates provided by Microsoft and follow their recommended mitigation steps.

Contact

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