EUVD-2024-52788

Comprehensive Technical Analysis of EUVD-2024-52788

1. Vulnerability Assessment and Severity Evaluation

The vulnerability described in EUVD-2024-52788 affects Raisecom MSG1200, MSG2100E, MSG2200, and MSG2300 devices running firmware version 3.90. The issue resides in the /upload_ipslib.php component of the web interface, allowing attackers to upload arbitrary files by crafting a suitable form name.

Severity Evaluation:

• Base Score: 9.8 (Critical)
• Base Score Version: CVSS 3.1
• Base Score Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

The CVSS score of 9.8 indicates a critical vulnerability. The vector string highlights the following characteristics:

• Attack Vector (AV): Network (N)
• Attack Complexity (AC): Low (L)
• Privileges Required (PR): None (N)
• User Interaction (UI): None (N)
• Scope (S): Unchanged (U)
• Confidentiality (C): High (H)
• Integrity (I): High (H)
• Availability (A): High (H)

This vulnerability can be exploited remotely without any special privileges or user interaction, making it highly dangerous.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Remote Exploitation: An attacker can exploit this vulnerability over the network without needing physical access to the device.
• Web Interface: The vulnerability is located in the web interface, making it accessible to anyone with network access to the device.

Exploitation Methods:

• Arbitrary File Upload: By crafting a suitable form name, an attacker can upload arbitrary files to the device. This can include malicious scripts, backdoors, or other harmful files.
• Web Shell Upload: An attacker could upload a web shell to gain remote command execution capabilities on the device.
• Data Exfiltration: Uploading scripts that exfiltrate sensitive data from the device.

3. Affected Systems and Software Versions

Affected Devices:

• Raisecom MSG1200
• Raisecom MSG2100E
• Raisecom MSG2200
• Raisecom MSG2300

Affected Software Version:

• Firmware version 3.90

4. Recommended Mitigation Strategies

Immediate Actions:

• Network Segmentation: Isolate affected devices from critical networks to limit potential damage.
• Access Control: Restrict access to the web interface to trusted IP addresses only.
• Monitoring: Implement continuous monitoring for suspicious activities on the affected devices.

Long-Term Mitigation:

• Firmware Update: Apply the latest firmware updates provided by Raisecom as soon as they are available.
• Patch Management: Ensure a robust patch management process is in place to quickly address future vulnerabilities.
• Security Audits: Conduct regular security audits and vulnerability assessments on network devices.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to European organizations using the affected Raisecom devices. Given the critical nature of the vulnerability, successful exploitation could lead to:

• Data Breaches: Unauthorized access to sensitive data.
• Service Disruption: Compromise of network services leading to downtime.
• Compliance Issues: Potential violations of data protection regulations such as GDPR.

Organizations in critical infrastructure sectors, such as telecommunications, finance, and healthcare, are particularly at risk due to the potential for widespread disruption.

6. Technical Details for Security Professionals

Vulnerability Details:

• Component: /upload_ipslib.php
• Exploit Mechanism: Crafting a suitable form name to bypass file upload restrictions.

Detection and Response:

• Log Analysis: Review web server logs for unusual file upload activities.
• Intrusion Detection Systems (IDS): Implement IDS rules to detect and alert on suspicious file upload attempts.
• Incident Response: Prepare an incident response plan specific to this vulnerability, including steps for containment, eradication, and recovery.

References:

• GitHub Gist: https://gist.github.com/wscg928/cbe88078751abad2ada2334eb12a5060

Conclusion: EUVD-2024-52788 represents a critical vulnerability that requires immediate attention from cybersecurity professionals. Organizations should prioritize mitigation efforts to protect against potential exploitation and ensure the integrity and security of their networks.