CVE-2020-1113: Windows Task Scheduler Security Feature Bypass Vulnerability
A security feature bypass vulnerability exists in Microsoft Windows when the Task Scheduler service fails to properly verify client connections over RPC, aka 'Windows Task Scheduler Security Feature Bypass Vulnerability'.
Other sources
A security feature bypass vulnerability exists in Microsoft Windows when the Task Scheduler service fails to properly verify client connections over RPC. An attacker who successfully exploited this vulnerability could run arbitrary code as an administrator. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, a man-in-the-middle attacker would need to send a specially crafted request to a vulnerable system. The security update addresses the vulnerability by correcting how the Task Scheduler service validates connections.
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch KB4556852 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch KB4556843 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch KB4556853 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch KB4556854 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch KB4556846 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch KB4556813 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch KB4556826 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch KB4556799 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch KB4556812 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch KB4551853 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch KB4556807
Event History
Frequently Asked Questions
What is the severity of CVE-2020-1113?
CVE-2020-1113 is rated as important severity by Microsoft.
How do I fix CVE-2020-1113?
To fix CVE-2020-1113, apply the latest security updates from Microsoft for your affected version of Windows.
Which versions of Windows are affected by CVE-2020-1113?
CVE-2020-1113 affects various versions of Microsoft Windows including Windows 7, 8.1, 10, and Windows Server editions.
Can CVE-2020-1113 be exploited remotely?
Yes, CVE-2020-1113 can potentially be exploited remotely if the attacker is able to connect to the Task Scheduler service.
What are the potential impacts of CVE-2020-1113?
Exploiting CVE-2020-1113 may allow an attacker to bypass certain security features, leading to unauthorized access or control over affected systems.