CVE-2021-33197 : Vulnerability Insights and Analysis

A vulnerability in Go before version 1.15.13 and 1.16.x before 1.16.5 could allow an attacker to drop arbitrary headers in certain configurations of ReverseProxy from net/http/httputil.

Understanding CVE-2021-33197

This CVE describes a security issue in Go programming language versions.

What is CVE-2021-33197?

The vulnerability in Go versions before 1.15.13 and 1.16.5 allows attackers to manipulate headers in specific ReverseProxy configurations.

The Impact of CVE-2021-33197

This vulnerability could be exploited by threat actors to drop arbitrary headers, potentially leading to security breaches and unauthorized access to sensitive information.

Technical Details of CVE-2021-33197

This section outlines the technical aspects of the CVE.

Vulnerability Description

The issue arises in certain configurations of ReverseProxy in Go, enabling attackers to manipulate headers.

Affected Systems and Versions

Go versions prior to 1.15.13 and 1.16.5 are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability to tamper with headers, posing a risk to the security of the affected systems.

Mitigation and Prevention

Learn how to protect systems from CVE-2021-33197.

Immediate Steps to Take

Ensure to update Go to versions 1.15.13 and 1.16.5 or newer to mitigate the vulnerability.

Long-Term Security Practices

Implement secure coding practices and regularly update software to prevent future vulnerabilities.

Patching and Updates

Stay informed about security patches and updates released by the Go programming language developers to address this vulnerability.