EUVD-2025-21423

Comprehensive Technical Analysis of EUVD-2025-21423

1. Vulnerability Assessment and Severity Evaluation

The vulnerability described in EUVD-2025-21423 is an unauthenticated command injection flaw in the WePresent WiPG-1000 firmware versions prior to 2.2.3.0. This vulnerability allows an attacker to execute arbitrary commands on the device without any authentication, due to improper input handling in the /cgi-bin/rdfs.cgi endpoint.

Severity Evaluation:

• CVSS Base Score: 9.3
• CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

The high base score of 9.3 indicates a critical vulnerability. The attack vector is network-based (AV:N), requires low complexity (AC:L), and does not need any privileges (PR:N) or user interaction (UI:N). The impact on confidentiality, integrity, and availability is high (VC:H, VI:H, VA:H).

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Network-Based Attack: An attacker can exploit this vulnerability over the network without needing physical access to the device.
• Unauthenticated Access: The attacker does not need any credentials to exploit the vulnerability.

Exploitation Methods:

• Command Injection: The attacker can send a crafted HTTP request to the /cgi-bin/rdfs.cgi endpoint with a malicious Client parameter. This parameter is not sanitized and is directly passed to a system call, allowing the attacker to execute arbitrary commands.
• Automated Exploitation: The vulnerability can be exploited using automated tools or scripts, as demonstrated by the Metasploit module referenced in the advisory.

3. Affected Systems and Software Versions

Affected Systems:

• WePresent WiPG-1000 devices

Affected Software Versions:

• Firmware versions prior to 2.2.3.0

4. Recommended Mitigation Strategies

Immediate Mitigation:

• Firmware Update: Upgrade the firmware to version 2.2.3.0 or later, which addresses the vulnerability.
• Network Segmentation: Isolate the affected devices from the public internet and restrict access to trusted networks only.
• Firewall Rules: Implement firewall rules to block unauthorized access to the /cgi-bin/rdfs.cgi endpoint.

Long-Term Mitigation:

• Regular Patching: Establish a regular patching and update schedule for all networked devices.
• Input Validation: Ensure that all input parameters are properly sanitized and validated before being used in system calls.
• Security Audits: Conduct regular security audits and vulnerability assessments to identify and mitigate similar issues.

5. Impact on European Cybersecurity Landscape

The vulnerability in the WePresent WiPG-1000 devices poses a significant risk to organizations and individuals within the European Union. Given the widespread use of such devices in corporate and educational settings, the potential for large-scale exploitation is high. This underscores the need for robust cybersecurity measures and regular updates to mitigate such risks.

6. Technical Details for Security Professionals

Vulnerability Details:

• Endpoint: /cgi-bin/rdfs.cgi
• Parameter: Client
• Exploitation: The Client parameter is not sanitized before being passed to a system call, allowing for command injection.

Exploitation Example:

curl -X POST "http://<target_ip>/cgi-bin/rdfs.cgi" -d "Client=;<malicious_command>"

References:

• RedGuard Advisory
• Metasploit Module
• Exploit-DB Entry
• VulnCheck Advisory

Aliases:

• CVE-2025-34103

Assigner:

• VulnCheck

ENISA IDs:

• Product: 3cffc599-e58b-3cd6-85db-00a4ba885a3a (WiPG-1000)
• Vendor: 9aae7fba-bff3-3e2e-aa46-6a722d0a270b (WePresent (Barco))

Conclusion

The unauthenticated command injection vulnerability in WePresent WiPG-1000 devices is a critical issue that requires immediate attention. Organizations should prioritize updating the firmware to the latest version and implement additional security measures to mitigate the risk. Regular security audits and input validation practices are essential to prevent similar vulnerabilities in the future.