Description
In OpenEdge Authentication Gateway and AdminServer prior to 11.7.19, 12.2.14, 12.8.1 on all platforms supported by the OpenEdge product, an authentication bypass vulnerability has been identified. The vulnerability is a bypass to authentication based on a failure to properly handle username and password. Certain unexpected content passed into the credentials can lead to unauthorized access without proper authentication.
EPSS Score:
57%
Comprehensive Technical Analysis of EUVD-2024-17158
1. Vulnerability Assessment and Severity Evaluation
The vulnerability identified in OpenEdge Authentication Gateway and AdminServer prior to versions 11.7.19, 12.2.14, and 12.8.1 allows for an authentication bypass. This vulnerability is critical due to its potential to grant unauthorized access to sensitive systems and data. The CVSS (Common Vulnerability Scoring System) base score of 10.0 indicates the highest level of severity, reflecting the ease of exploitation and the significant impact on confidentiality, integrity, and availability.
CVSS Vector Breakdown:
- AV:N (Network Vector): The vulnerability can be exploited remotely over the network.
- AC:L (Low Complexity): The attack requires minimal skill or resources to exploit.
- PR:N (No Privileges Required): No prior authentication is needed to exploit the vulnerability.
- UI:N (No User Interaction): The attack does not require any user interaction.
- S:C (Changed Scope): The vulnerability affects components beyond the initial security scope.
- C:H (High Confidentiality Impact): Complete confidentiality breach.
- I:H (High Integrity Impact): Complete integrity breach.
- A:H (High Availability Impact): Complete availability breach.
2. Potential Attack Vectors and Exploitation Methods
The primary attack vector involves sending unexpected content in the username and password fields during the authentication process. This can be achieved through:
- Brute Force Attacks: Automated scripts can be used to send various combinations of unexpected content to identify the bypass conditions.
- Phishing: Tricking users into entering malicious input into the authentication fields.
- Man-in-the-Middle (MitM) Attacks: Intercepting and modifying authentication requests to include the unexpected content.
3. Affected Systems and Software Versions
The vulnerability affects the following versions of OpenEdge Authentication Gateway and AdminServer:
- OpenEdge 11.7.0 to 11.7.18
- OpenEdge 12.2.0 to 12.2.13
- OpenEdge 12.8.0
All platforms supported by the OpenEdge product are impacted.
4. Recommended Mitigation Strategies
Immediate Actions:
- Patching: Upgrade to the latest versions (11.7.19, 12.2.14, or 12.8.1) where the vulnerability has been addressed.
- Network Segmentation: Isolate critical systems to limit the attack surface.
- Monitoring: Implement enhanced monitoring for unusual authentication attempts and failed logins.
Long-Term Strategies:
- Regular Audits: Conduct regular security audits and vulnerability assessments.
- User Training: Educate users on recognizing and avoiding phishing attempts.
- Multi-Factor Authentication (MFA): Implement MFA to add an additional layer of security.
5. Impact on European Cybersecurity Landscape
The vulnerability poses a significant risk to organizations using OpenEdge products, particularly those in critical sectors such as finance, healthcare, and government. Unauthorized access can lead to data breaches, financial loss, and disruption of services. The high EPSS score of 57 indicates a high likelihood of exploitation, making it a priority for immediate remediation.
6. Technical Details for Security Professionals
Detection:
- Log Analysis: Review authentication logs for unusual patterns or repeated failed attempts.
- Intrusion Detection Systems (IDS): Deploy IDS to detect and alert on suspicious network traffic.
Exploitation:
- Proof of Concept (PoC): Develop a PoC to understand the vulnerability and test mitigation strategies.
- Penetration Testing: Conduct penetration testing to identify and remediate similar vulnerabilities.
Remediation:
- Code Review: Ensure proper handling of username and password inputs in the authentication process.
- Input Validation: Implement robust input validation to prevent unexpected content from being processed.
References:
By addressing this vulnerability promptly and comprehensively, organizations can significantly reduce the risk of unauthorized access and potential data breaches.