CVE-2020-1113 : Security Advisory and Response

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'.

Understanding CVE-2020-1113

This CVE involves a vulnerability in Microsoft Windows related to the Task Scheduler service's verification of client connections over RPC.

What is CVE-2020-1113?

CVE-2020-1113 is a security feature bypass vulnerability in Microsoft Windows that can be exploited by attackers to bypass security measures by taking advantage of flaws in the Task Scheduler service.

The Impact of CVE-2020-1113

This vulnerability can potentially allow malicious actors to circumvent security controls and execute arbitrary code on the affected system, leading to unauthorized access and potential system compromise.

Technical Details of CVE-2020-1113

This section provides technical details of the vulnerability.

Vulnerability Description

The vulnerability in Microsoft Windows allows attackers to bypass security features by exploiting issues in the Task Scheduler service's verification of client connections over RPC.

Affected Systems and Versions

The following systems and versions are affected:

Windows 7, 8.1, 10, Windows Server 2008, 2012, 2016, and 2019 (multiple versions)
Windows 10 Version 1607, 1709, 1803, 1809, 1903, and 1909 for various system architectures

Exploitation Mechanism

Attackers can exploit this vulnerability by establishing a client connection over RPC through the Task Scheduler service, manipulating the connection to bypass security mechanisms and execute unauthorized actions.

Mitigation and Prevention

Here are some steps to mitigate and prevent exploitation of CVE-2020-1113.

Immediate Steps to Take

Apply security updates and patches provided by Microsoft.
Monitor network traffic for signs of malicious activity.
Implement least privilege access to limit potential damage.

Long-Term Security Practices

Regularly update and patch all systems to address known vulnerabilities.
Use network segmentation to isolate critical systems from potential attacks.
Conduct regular security assessments and penetration testing to identify and address security gaps.

Patching and Updates

Microsoft has released security updates to address this vulnerability. Ensure that systems are updated with the latest patches to mitigate the risk of exploitation.