Description
RUCKUS Network Director (RND) before 4.5 allows spoofing of an administrator JWT by an attacker who knows the hardcoded value of a certain secret key.
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2025-23514
1. Vulnerability Assessment and Severity Evaluation
The vulnerability described in EUVD-2025-23514 affects RUCKUS Network Director (RND) versions prior to 4.5. The issue allows an attacker to spoof an administrator's JSON Web Token (JWT) by exploiting a hardcoded secret key. The CVSS (Common Vulnerability Scoring System) base score of 9.0 indicates a critical severity level. The CVSS vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H breaks down as follows:
- AV:N (Attack Vector: Network): The vulnerability is exploitable remotely over the network.
- AC:H (Attack Complexity: High): Exploiting the vulnerability requires specific conditions or knowledge.
- PR:N (Privileges Required: None): No privileges are required to exploit the vulnerability.
- UI:N (User Interaction: None): No user interaction is required.
- S:C (Scope: Changed): The vulnerability affects a component that is different from the vulnerable component.
- C:H (Confidentiality: High): There is a high impact on confidentiality.
- I:H (Integrity: High): There is a high impact on integrity.
- A:H (Availability: High): There is a high impact on availability.
2. Potential Attack Vectors and Exploitation Methods
The primary attack vector involves an attacker who has knowledge of the hardcoded secret key used for JWT generation. The attacker can craft a valid JWT with administrator privileges and use it to authenticate to the RUCKUS Network Director. This can be achieved through:
- Network Sniffing: Capturing network traffic to identify the JWT structure and secret key.
- Reverse Engineering: Analyzing the RND software to extract the hardcoded secret key.
- Social Engineering: Obtaining the secret key through deception or manipulation of authorized personnel.
Once the attacker has the JWT, they can perform various malicious activities, including:
- Unauthorized Access: Gaining administrative access to the network management system.
- Data Exfiltration: Extracting sensitive information from the network.
- Configuration Changes: Altering network configurations to disrupt services or create backdoors.
3. Affected Systems and Software Versions
The vulnerability affects RUCKUS Network Director versions prior to 4.5. Organizations using these versions are at risk and should prioritize updating to a patched version.
4. Recommended Mitigation Strategies
To mitigate the risk associated with this vulnerability, organizations should implement the following strategies:
- Update Software: Upgrade to RUCKUS Network Director version 4.5 or later, which addresses the vulnerability.
- Network Segmentation: Isolate network management systems from general network traffic to limit exposure.
- Monitoring and Logging: Implement robust monitoring and logging to detect unusual activities or unauthorized access attempts.
- Access Controls: Enforce strict access controls and use multi-factor authentication (MFA) for administrative access.
- Regular Audits: Conduct regular security audits and vulnerability assessments to identify and address potential weaknesses.
5. Impact on European Cybersecurity Landscape
The vulnerability poses a significant risk to organizations within the European Union that rely on RUCKUS Network Director for network management. Given the critical nature of network management systems, a successful exploitation could lead to widespread disruptions and data breaches. This underscores the importance of timely patching and adherence to best practices in cybersecurity.
6. Technical Details for Security Professionals
For security professionals, the following technical details are pertinent:
- JWT Structure: Understand the structure of JWTs used by RUCKUS Network Director, including the header, payload, and signature components.
- Secret Key Management: Ensure that secret keys used for JWT generation are not hardcoded and are managed securely.
- Incident Response: Develop and test incident response plans specifically for JWT-related vulnerabilities.
- Threat Intelligence: Leverage threat intelligence feeds to stay informed about emerging threats and vulnerabilities affecting network management systems.
By addressing these points, organizations can enhance their cybersecurity posture and mitigate the risks associated with this vulnerability.
References
Conclusion
The vulnerability in RUCKUS Network Director versions prior to 4.5 is critical and requires immediate attention. By understanding the attack vectors, affected systems, and implementing robust mitigation strategies, organizations can protect their network infrastructure and maintain a strong cybersecurity posture.