CVE-2021-42279 : Exploit Details and Defense Strategies
Learn about CVE-2021-42279, a Memory Corruption Vulnerability in the Chakra Scripting Engine affecting Microsoft products. Understand the impact, affected systems, and mitigation steps.
A Chakra Scripting Engine Memory Corruption Vulnerability affecting multiple Microsoft products.
Understanding CVE-2021-42279
What is CVE-2021-42279?
The CVE-2021-42279 is a Memory Corruption Vulnerability in the Chakra Scripting Engine.
The Impact of CVE-2021-42279
The vulnerability allows for Remote Code Execution, posing a significant security risk.
Technical Details of CVE-2021-42279
Vulnerability Description
The Chakra Scripting Engine vulnerability can be exploited to execute arbitrary code remotely.
Affected Systems and Versions
- Microsoft ChakraCore (N/A)
- Windows versions 10, 11, Server 2022, Server 20H2, 1909, 20H2, 2004, 1507, Server 2004, 1607, Server 2019, 1809, and 2016.
- Various platforms including x64-based Systems, 32-bit Systems, and ARM64-based Systems.
Exploitation Mechanism
The vulnerability is exploited through crafted code execution, leading to memory corruption and potential remote code execution.
Mitigation and Prevention
Immediate Steps to Take
- Apply the security updates provided by Microsoft promptly.
- Utilize security best practices to minimize the risk of exploitation.
Long-Term Security Practices
- Regularly update and patch systems to ensure protection against known vulnerabilities.
- Employ network segmentation and access controls.
Patching and Updates
Update to the patched versions provided by Microsoft to mitigate the CVE-2021-42279 vulnerability.