CVE-2019-11888 : Security Advisory and Response

In Windows, version 1.12.5 has a vulnerability where the process creation is mishandled when a nil environment is combined with a non-nil token. This flaw can be exploited by attackers to acquire sensitive information or elevate their privileges.

Understanding CVE-2019-11888

This CVE identifies a vulnerability in Go version 1.12.5 on Windows that allows attackers to gain sensitive information or privileges.

What is CVE-2019-11888?

This CVE pertains to a flaw in Go version 1.12.5 on Windows, where the mishandling of process creation with a nil environment and a non-nil token enables attackers to exploit the system.

The Impact of CVE-2019-11888

The vulnerability can lead to attackers obtaining sensitive information or escalating their privileges on the affected system.

Technical Details of CVE-2019-11888

Vulnerability Description

The vulnerability in Go version 1.12.5 on Windows allows attackers to manipulate the process creation, potentially leading to unauthorized access to sensitive data or elevated privileges.

Affected Systems and Versions

Systems: Windows
Version: 1.12.5

Exploitation Mechanism

Attackers can exploit this vulnerability by combining a nil environment with a non-nil token during process creation, enabling them to gain unauthorized access or elevate their privileges.

Mitigation and Prevention

Immediate Steps to Take

Update Go to a patched version that addresses the vulnerability.
Monitor system logs for any suspicious activity related to process creation.

Long-Term Security Practices

Implement least privilege access controls to limit the impact of potential attacks.
Regularly update and patch software to prevent known vulnerabilities.

Patching and Updates

Apply security patches provided by the software vendor to mitigate the vulnerability and enhance system security.