Description
OpenObserve is a observability platform built specifically for logs, metrics, traces, analytics, designed to work at petabyte scale. A critical vulnerability has been identified in the "/api/{org_id}/users/{email_id}" endpoint. This vulnerability allows any authenticated user within an organization to remove any other user from that same organization, irrespective of their respective roles. This includes the ability to remove users with "Admin" and "Root" roles. By enabling any organizational member to unilaterally alter the user base, it opens the door to unauthorized access and can cause considerable disruptions in operations. The core of the vulnerability lies in the `remove_user_from_org` function in the user management system. This function is designed to allow organizational users to remove members from their organization. The function does not check if the user initiating the request has the appropriate administrative privileges to remove a user. Any user who is part of the organization, irrespective of their role, can remove any other user, including those with higher privileges. This vulnerability is categorized as an Authorization issue leading to Unauthorized User Removal. The impact is severe, as it compromises the integrity of user management within organizations. By exploiting this vulnerability, any user within an organization, without the need for administrative privileges, can remove critical users, including "Admins" and "Root" users. This could result in unauthorized system access, administrative lockout, or operational disruptions. Given that user accounts are typically created by "Admins" or "Root" users, this vulnerability can be exploited by any user who has been granted access to an organization, thereby posing a critical risk to the security and operational stability of the application. This issue has been addressed in release version 0.8.0. Users are advised to upgrade.
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2024-22468
1. Vulnerability Assessment and Severity Evaluation
Vulnerability Overview:
The vulnerability identified in OpenObserve, an observability platform, affects the /api/{org_id}/users/{email_id} endpoint. This critical flaw allows any authenticated user within an organization to remove any other user, regardless of their roles or privileges. The root cause is a lack of proper authorization checks in the remove_user_from_org function, which permits unauthorized user removal.
Severity Evaluation:
- CVSS Base Score: 9.1
- CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L
The high base score indicates a severe vulnerability due to the following factors:
- Attack Vector (AV:N): The vulnerability can be exploited over the network.
- Attack Complexity (AC:L): The attack requires low complexity.
- Privileges Required (PR:L): Low privileges are required to exploit the vulnerability.
- User Interaction (UI:N): No user interaction is required.
- Scope (S:C): The scope of the vulnerability changes, affecting components beyond the vulnerable software.
- Confidentiality (C:H): High impact on confidentiality.
- Integrity (I:L): Low impact on integrity.
- Availability (A:L): Low impact on availability.
2. Potential Attack Vectors and Exploitation Methods
Attack Vectors:
- Internal Threats: Malicious insiders or compromised user accounts can exploit this vulnerability to remove critical users, including administrators.
- External Threats: If an attacker gains access to any user account within the organization, they can escalate their privileges by removing higher-privileged users.
Exploitation Methods:
- Unauthorized User Removal: An authenticated user can send a crafted HTTP request to the
/api/{org_id}/users/{email_id}endpoint to remove any user, including those with "Admin" or "Root" roles. - Privilege Escalation: By removing higher-privileged users, an attacker can effectively gain control over the organization's user management system.
3. Affected Systems and Software Versions
Affected Systems:
- OpenObserve observability platform.
Affected Software Versions:
- All versions prior to 0.8.0.
4. Recommended Mitigation Strategies
Immediate Actions:
- Upgrade: Upgrade to OpenObserve version 0.8.0 or later, which includes the fix for this vulnerability.
- Access Controls: Implement strict access controls and monitor user activities to detect any suspicious behavior.
- Multi-Factor Authentication (MFA): Enforce MFA for all user accounts to add an extra layer of security.
Long-Term Strategies:
- Regular Audits: Conduct regular security audits and vulnerability assessments.
- Role-Based Access Control (RBAC): Ensure that RBAC is properly implemented and enforced across the organization.
- Incident Response Plan: Develop and maintain an incident response plan to quickly address any security breaches.
5. Impact on European Cybersecurity Landscape
Regulatory Compliance:
- Organizations using OpenObserve must ensure compliance with GDPR and other relevant regulations by addressing this vulnerability promptly.
- Failure to mitigate this vulnerability could result in data breaches, leading to regulatory penalties and reputational damage.
Operational Disruptions:
- The vulnerability can cause significant operational disruptions, including administrative lockout and unauthorized access, which can impact business continuity.
Cybersecurity Posture:
- This vulnerability underscores the importance of robust user management and access control mechanisms in maintaining a strong cybersecurity posture.
6. Technical Details for Security Professionals
Vulnerability Details:
- Endpoint:
/api/{org_id}/users/{email_id} - Function:
remove_user_from_org - Issue: Lack of proper authorization checks allowing unauthorized user removal.
Detection and Monitoring:
- Logs: Monitor API logs for unusual user removal activities.
- Alerts: Set up alerts for any user removal actions, especially those involving high-privileged accounts.
Patch Analysis:
- Fix: The patch in version 0.8.0 includes proper authorization checks to ensure that only users with appropriate administrative privileges can remove other users.
References:
Conclusion: The vulnerability in OpenObserve is critical and requires immediate attention. Organizations should prioritize upgrading to the patched version and implement robust access controls to mitigate the risk. Regular security audits and compliance with regulatory requirements are essential to maintain a strong cybersecurity posture in the European landscape.