EUVD-2024-17467

Comprehensive Technical Analysis of EUVD-2024-17467

1. Vulnerability Assessment and Severity Evaluation

The vulnerability described in EUVD-2024-17467 affects the lunary-ai/lunary web application version 1.0.1. The issue arises from the improper invalidation of authorization tokens upon a user's removal from an organization. This allows a removed user to continue accessing and manipulating logs, project details, and external user information using an old authorization token.

Severity Evaluation:

• Base Score: 9.1 (CVSS:3.0)
• Vector String: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

The high base score indicates a critical vulnerability due to the potential for unauthorized access and data manipulation. The attack vector is network-based (AV:N), requires low complexity (AC:L), and does not require user interaction (UI:N). The impact on confidentiality and integrity is high (C:H/I:H), while the availability impact is none (A:N).

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

1. Re-use of Old Authorization Tokens: A removed user can exploit the vulnerability by re-using an old authorization token to access the system.
2. Network Interception: If the authorization token is intercepted during transmission, an attacker could use it to gain unauthorized access.

Exploitation Methods:

1. Token Replay: An attacker can replay the old authorization token to perform actions on logs and access sensitive information.
2. Session Hijacking: By capturing the authorization token, an attacker can hijack the session and perform actions as the removed user.

3. Affected Systems and Software Versions

Affected Software:

• lunary-ai/lunary version 1.0.1

Affected Systems:

• Any system running the lunary-ai/lunary web application version 1.0.1.

Product Versions:

• Unspecified versions <1.2.7
• All versions of lunary-ai/lunary

4. Recommended Mitigation Strategies

1. Token Invalidation: Ensure that authorization tokens are invalidated immediately upon a user's removal from the organization.
2. Token Expiry: Implement short-lived tokens with automatic expiration to reduce the window of opportunity for exploitation.
3. Session Management: Enhance session management to detect and terminate sessions associated with removed users.
4. Access Controls: Implement robust access controls to verify user permissions before allowing any actions.
5. Monitoring and Logging: Increase monitoring and logging of authorization token usage to detect and respond to suspicious activities.
6. Update Software: Upgrade to the latest version of lunary-ai/lunary that addresses this vulnerability.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to organizations using the lunary-ai/lunary web application, particularly those handling sensitive data. Unauthorized access and manipulation of logs and project details can lead to data breaches, loss of intellectual property, and compliance violations. Given the critical nature of the vulnerability, it underscores the importance of robust identity and access management practices within the European cybersecurity landscape.

6. Technical Details for Security Professionals

Technical Overview:

• Vulnerability Type: Authorization Token Re-use
• Affected Component: Authorization token management in lunary-ai/lunary web application
• Exploitation: Re-use of old authorization tokens to perform unauthorized actions

Mitigation Steps:

1. Immediate Action:

   • Invalidate all authorization tokens associated with removed users.
   • Implement token expiration policies.

2. Long-term Action:

   • Review and enhance the token management system to ensure proper invalidation and expiration.
   • Conduct regular security audits to identify and mitigate similar vulnerabilities.

References:

• Huntr Bounty Report
• GitHub Commit

Aliases:

• CVE-2024-1740
• GSD-2024-1740

Assigner:

• @huntr_ai

ENISA ID Product:

• lunary-ai/lunary (unspecified <1.2.7)
• lunary-ai/lunary (all versions)

ENISA ID Vendor:

• lunary-ai

By addressing this vulnerability promptly, organizations can significantly reduce the risk of unauthorized access and data manipulation, thereby enhancing their overall cybersecurity posture.