CVE-2022-29172 : Vulnerability Insights and Analysis

Auth0, a popular authentication broker, is impacted by a vulnerability that allows malicious actors to inject HTML code into additional signup fields before version

11.33.0

. This could lead to the generation of malicious links in verification emails, affecting users relying on the

auth0-lock

version

11.32.2

or lower.

Understanding CVE-2022-29172

This CVE discloses a security issue in Auth0's authentication process that allows HTML injection through additional signup fields, potentially leading to cross-site scripting attacks.

What is CVE-2022-29172?

Auth0's versions preceding

11.33.0

contain a vulnerability that permits the injection of malformed HTML code into extra signup fields, which could be utilized to create malicious links in generated verification emails.

The Impact of CVE-2022-29172

The vulnerability allows threat actors to embed malicious HTML within signup fields, posing a risk of executing harmful actions when unsuspecting users interact with the compromised verification emails.

Technical Details of CVE-2022-29172

The vulnerability involves improper handling of user metadata, allowing attackers to inject HTML code into signup fields. Here are the key technical details:

Vulnerability Description

Before version

11.33.0

, Auth0's implementation of additional signup fields enables the injection of malicious HTML code into user metadata, leading to the generation of exploitable links in verification emails.

Affected Systems and Versions

Users running

auth0-lock

versions

11.32.2

or earlier and utilizing the 'additional signup fields' feature are susceptible to this vulnerability.

Exploitation Mechanism

Malicious actors leverage the insecure handling of user metadata to inject crafted HTML code into signup fields, resulting in the generation of harmful links in verification emails.

Mitigation and Prevention

To safeguard against this vulnerability, immediate actions and long-term security measures need to be implemented:

Immediate Steps to Take

Upgrade the

auth0-lock

version to

11.33.0

and refrain from using the 'additional signup fields' feature until the update is completed.

Long-Term Security Practices

Regularly monitor for security advisories from Auth0 and apply updates promptly to mitigate potential risks associated with vulnerabilities.

Patching and Updates

Ensure a rigorous patching strategy is in place to maintain the security of authentication mechanisms and promptly address any identified vulnerabilities.