CVE-2020-10591 Explained : Impact and Mitigation
Discover the impact of CVE-2020-10591, a vulnerability in Walmart Labs Concord before version 1.44.0 allowing attackers to access sensitive information. Learn how to mitigate and prevent this security risk.
An issue was discovered in Walmart Labs Concord before 1.44.0 where CORS headers have a potentially unsafe dependency on Origin headers, allowing attackers to access sensitive information.
Understanding CVE-2020-10591
What is CVE-2020-10591?
This CVE identifies a vulnerability in Walmart Labs Concord versions prior to 1.44.0 that exposes sensitive information to remote attackers through CORS headers.
The Impact of CVE-2020-10591
The vulnerability allows attackers to discover host information, nodes, API metadata, and references to usernames via api/v1/apikey.
Technical Details of CVE-2020-10591
Vulnerability Description
The issue lies in the lack of configurability of CORS Access-Control-Allow-Origin headers, leading to potential information exposure.
Affected Systems and Versions
- Product: Walmart Labs Concord
- Versions affected: Before 1.44.0
Exploitation Mechanism
Attackers can exploit the vulnerability by manipulating Origin headers to access sensitive data.
Mitigation and Prevention
Immediate Steps to Take
- Upgrade Walmart Labs Concord to version 1.44.0 or newer.
- Implement proper CORS header configurations to restrict access.
Long-Term Security Practices
- Regularly review and update CORS configurations.
- Conduct security assessments to identify and address similar vulnerabilities.
Patching and Updates
Apply patches and updates provided by Walmart Labs Concord to fix the vulnerability.