EUVD-2025-25440

Comprehensive Technical Analysis of EUVD-2025-25440

1. Vulnerability Assessment and Severity Evaluation

The EUVD entry EUVD-2025-25440 describes a Server-Side Request Forgery (SSRF) vulnerability in the UISP Application. This vulnerability allows a malicious actor with certain permissions to make requests outside the intended scope of the UISP Application. The CVSS (Common Vulnerability Scoring System) base score of 9.1 indicates a critical severity level. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N breaks down as follows:

• Attack Vector (AV): Network (N) - The vulnerability is exploitable over the network.
• Attack Complexity (AC): Low (L) - The attack requires minimal skill or resources.
• Privileges Required (PR): None (N) - No special privileges are needed to exploit the vulnerability.
• User Interaction (UI): None (N) - No user interaction is required.
• Scope (S): Unchanged (U) - The vulnerability does not change the security scope.
• Confidentiality (C): High (H) - The vulnerability has a high impact on confidentiality.
• Integrity (I): High (H) - The vulnerability has a high impact on integrity.
• Availability (A): None (N) - The vulnerability does not impact availability.

Given the high scores for confidentiality and integrity, this vulnerability poses a significant risk to data security and system integrity.

2. Potential Attack Vectors and Exploitation Methods

SSRF vulnerabilities can be exploited in several ways:

• Internal Network Access: An attacker could use the SSRF to access internal services that are not exposed to the public internet, potentially leading to data exfiltration or unauthorized access.
• Cloud Metadata Services: If the UISP Application is hosted on a cloud platform, an attacker could use the SSRF to access cloud metadata services, which often contain sensitive information such as credentials.
• Port Scanning: An attacker could use the SSRF to perform internal port scanning, identifying other vulnerable services within the network.
• Data Exfiltration: By making requests to external services, an attacker could exfiltrate sensitive data from the UISP Application.

3. Affected Systems and Software Versions

The vulnerability affects the UISP Application version 2.4.220 and earlier. The ENISA ID Product entry specifies the affected product and version:

• Product: UISP Application
• Vendor: Ubiquiti Inc
• Affected Versions: 2.4.220 and earlier

Users of these versions are at risk and should take immediate action to mitigate the vulnerability.

4. Recommended Mitigation Strategies

To mitigate the risk associated with this vulnerability, the following steps are recommended:

• Update Software: Upgrade to the latest version of the UISP Application that includes a fix for this vulnerability.
• Network Segmentation: Implement network segmentation to limit the scope of potential SSRF attacks.
• Input Validation: Ensure that all user inputs are properly validated and sanitized to prevent unauthorized requests.
• Access Controls: Implement strict access controls to limit the permissions of users and applications.
• Monitoring and Logging: Enhance monitoring and logging to detect and respond to suspicious activities promptly.

5. Impact on European Cybersecurity Landscape

The presence of this vulnerability in a widely used application like UISP can have significant implications for the European cybersecurity landscape:

• Data Breaches: Organizations using the affected versions are at risk of data breaches, which could lead to financial losses and reputational damage.
• Compliance Issues: Non-compliance with data protection regulations such as GDPR could result in legal consequences and fines.
• Supply Chain Risks: If the UISP Application is part of a larger supply chain, the vulnerability could propagate risks to other interconnected systems and organizations.

6. Technical Details for Security Professionals

For security professionals, the following technical details are pertinent:

• Detection: Implement intrusion detection systems (IDS) and intrusion prevention systems (IPS) to detect and block SSRF attempts.
• Patch Management: Ensure a robust patch management process to apply updates promptly.
• Code Review: Conduct thorough code reviews to identify and remediate similar vulnerabilities in other applications.
• Security Testing: Regularly perform security testing, including penetration testing and vulnerability assessments, to identify and mitigate potential risks.
• Incident Response: Develop and maintain an incident response plan to quickly address any security incidents related to this vulnerability.

In conclusion, the SSRF vulnerability in the UISP Application is critical and requires immediate attention. Organizations should prioritize updating their systems and implementing robust security measures to protect against potential exploitation.

References

• UISP Application Release Notes
• CVE ID: CVE-2025-27217
• Assigner: hackerone
• ENISA ID Product: 0d45b1de-8ee0-3395-b647-981030787edb
• ENISA ID Vendor: d859d0d3-0b6a-3b9c-85a8-be013b13a8ea