CVE-2025-22870 (Medium) Detected In Github.com/golang/net-v0.1.0

Mar 9, 2025 by ADMIN 65 views

Introduction

In the ever-evolving landscape of open-source software, vulnerabilities can have a significant impact on the security and integrity of applications. One such vulnerability, CVE-2025-22870, has been detected in the github.com/golang/net-v0.1.0 library. In this article, we will delve into the details of this vulnerability, its severity, and the suggested fix to ensure the security of your applications.

CVE-2025-22870 - Medium Severity Vulnerability

The github.com/golang/net-v0.1.0 library is a part of the Go supplementary network libraries, which provide a set of network-related functions and utilities. However, a vulnerability has been discovered in this library, which can be exploited to bypass proxy settings using IPv6 zone IDs.

Vulnerable Library Details

Library Name: github.com/golang/net-v0.1.0
Library Home Page: https://proxy.golang.org/github.com/golang/net/@v/v0.1.0.zip
Path to Dependency File: /go.mod
Path to Vulnerable Library: /go.mod

Dependency Hierarchy

The vulnerability was found in the github.com/aftership/email-verifier-v1.3.0 library, which depends on the github.com/golang/net-v0.1.0 library.

Root Library: github.com/aftership/email-verifier-v1.3.0
Vulnerable Library: github.com/golang/net-v0.1.0

Found in HEAD Commit and Base Branch

The vulnerability was found in the HEAD commit 296953fdf7b1766daf9ff2839a0e0a7b0d3f371e and the base branch dev.

Vulnerability Details

The vulnerability, CVE-2025-22870, is a proxy bypass vulnerability using IPv6 zone IDs. In the net/http, x/net/proxy, and x/net/http/httpproxy packages, the matching of hosts against proxy patterns can improperly treat an IPv6 zone ID as a hostname component. This can lead to a request being incorrectly matched and not being proxied.

For example, when the NO_PROXY environment variable is set to *.example.com, a request to [::1%25.example.com]:80 would incorrectly match and not be proxied.

CVSS 3 Score Details

The CVSS 3 score for this vulnerability is 5.5, indicating a medium severity vulnerability.

Base Score Metrics:
- Exploitability Metrics:
  - Attack Vector: Local
  - Attack Complexity: Low
  - Privileges Required: None
  - User Interaction: Required
  - Scope: Unchanged
- Impact Metrics:
  - Confidentiality Impact: None
  - Integrity Impact: None
  - Availability Impact: High

Suggested Fix

The suggested fix for this vulnerability is to upgrade the version of the github.com/golang/net-v0.1.0 library to go1.23.7.

Type: Upgrade version
Release Date: 2025-03-08
Fix Resolution: go1.23.7

Conclusion

In conclusion, the CVE-2025-22870 vulnerability in the github.com/golang/net-v0.1.0 library is a medium severity vulnerability that can be exploited to bypass proxy settings using IPv6 zone IDs. It is essential to upgrade the version of the library to go1.23.7 to ensure the security of your applications.

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Q: What is CVE-2025-22870 and how does it affect my application?

A: CVE-2025-22870 is a medium severity vulnerability detected in the github.com/golang/net-v0.1.0 library. This vulnerability can be exploited to bypass proxy settings using IPv6 zone IDs, which can lead to a request being incorrectly matched and not being proxied.

Q: What is the impact of this vulnerability on my application?

A: The impact of this vulnerability is that it can lead to a request being incorrectly matched and not being proxied. This can result in a denial of service (DoS) attack or other security issues.

Q: What is the CVSS 3 score for this vulnerability?

A: The CVSS 3 score for this vulnerability is 5.5, indicating a medium severity vulnerability.

Q: What are the base score metrics for this vulnerability?

A: The base score metrics for this vulnerability are:

Exploitability Metrics:
- Attack Vector: Local
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: Required
- Scope: Unchanged
Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: High

Q: What is the suggested fix for this vulnerability?

A: The suggested fix for this vulnerability is to upgrade the version of the github.com/golang/net-v0.1.0 library to go1.23.7.

Q: How can I identify if my application is affected by this vulnerability?

A: You can identify if your application is affected by this vulnerability by checking the version of the github.com/golang/net-v0.1.0 library used in your application. If your application is using a version prior to go1.23.7, it may be affected by this vulnerability.

Q: What are the steps to remediate this vulnerability?

A: The steps to remediate this vulnerability are:

Identify the version of the github.com/golang/net-v0.1.0 library used in your application.
Check if the version is prior to go1.23.7.
If the version is prior to go1.23.7, upgrade the version to go1.23.7 or later.

Q: Can I use a different library to avoid this vulnerability?

A: Yes, you can use a different library to avoid this vulnerability. However, it is essential to ensure that the new library is properly tested and validated to ensure that it does not introduce any new vulnerabilities.

Q: How can I prevent similar vulnerabilities in the future?

A: To prevent similar vulnerabilities in the future, it is essential to:

Regularly update and patch your dependencies.
Use a vulnerability scanner to identify potential vulnerabilities.
Implement a robust security testing and validation process.
Use a secure coding practice and follow best practices for secure coding.

Q: What is the best practice for managing open-source dependencies?

A: The best practice for managing open-source dependencies is to:

Regularly update and patch your dependencies.
Use a vulnerability scanner to identify potential vulnerabilities.
Implement a robust security testing and validation process.
Use a secure coding practice and follow best practices for secure coding.
Monitor and track dependencies for any changes or updates.

Q: How can I get help with remediating this vulnerability?

A: You can get help with remediating this vulnerability by:

Contacting the maintainers of the github.com/golang/net-v0.1.0 library.
Reaching out to a security expert or a vulnerability remediation service.
Using online resources and documentation to guide you through the remediation process.

Q: What is the importance of open-source security?

A: Open-source security is crucial because it affects the security and integrity of applications built using open-source software. Vulnerabilities in open-source software can lead to security issues, data breaches, and other security-related problems. Therefore, it is essential to prioritize open-source security and take proactive measures to identify and remediate vulnerabilities.