CVE-2021-45901 Explained : Impact and Mitigation

A vulnerability in the password-reset form in ServiceNow Orlando that leaks information about user account existence.

Understanding CVE-2021-45901

What is CVE-2021-45901?

The password-reset form in ServiceNow Orlando provides different responses to invalid authentication attempts based on whether the username exists, leaking sensitive information.

The Impact of CVE-2021-45901

This vulnerability can lead to username enumeration, potentially aiding malicious actors in targeted attacks.

Technical Details of CVE-2021-45901

Vulnerability Description

The issue lies in ServiceNow Orlando's password-reset form, which can disclose user account information via differing invalid authentication responses.

Affected Systems and Versions

Product: ServiceNow Orlando
Versions: All

Exploitation Mechanism

Malicious actors can exploit this vulnerability to determine valid usernames, aiding in further attacks.

Mitigation and Prevention

Immediate Steps to Take

Implement patches or updates provided by ServiceNow to address this vulnerability.
Monitor authentication and access logs for unusual behavior indicating potential username enumeration.

Long-Term Security Practices

Regularly review and update security configurations to prevent information leakage vulnerabilities.
Conduct security training for users on safe password practices and awareness of potential username enumeration risks.

Patching and Updates

ServiceNow may release patches or updates to fix this vulnerability. Stay informed and apply patches promptly to secure user information.