GHSA-8mm3-2mcj-cx6r: 
JavaScript vulnerability analysis and mitigation

The vulnerability (GHSA-8mm3-2mcj-cx6r) involves a malicious package named 'angluar-cli' version 0.0.3, which was discovered and published to the GitHub Advisory Database on September 11, 2020. This package contains malicious code implemented as a postinstall script, specifically targeting users who mistakenly type the package name when attempting to install the legitimate 'angular-cli' package (GitHub Advisory).

The vulnerability has been assigned a Critical severity rating with a CVSS score of 9.8. The CVSS metrics indicate Network attack vector, Low attack complexity, No privileges required, No user interaction needed, Unchanged scope, and High impact on Confidentiality, Integrity, and Availability. The vulnerability is classified under CWE-506 (GitHub Advisory).

When installed, the malicious package attempts to remove files and stop processes specifically related to McAfee antivirus software on macOS systems, potentially compromising system security (GitHub Advisory).

The package is designed to exploit typosquatting, taking advantage of users who accidentally mistype 'angular-cli' as 'angluar-cli' during installation. The attack requires no special privileges or user interaction beyond the initial installation (GitHub Advisory).

Users are advised to immediately remove the package from their environment if installed. After removal, it is recommended to verify whether any files were deleted and check if any processes were stopped. There are no patched versions available as this is a malicious package (GitHub Advisory).