EUVD-2026-9368

Comprehensive Technical Analysis of EUVD-2026-9368

1. Vulnerability Assessment and Severity Evaluation

The vulnerability described in EUVD-2026-9368 pertains to an OS Command Injection flaw in the web-based Ping diagnostic utility of the International Datacasting Corporation (IDC) SFX Series SuperFlex Satellite Receiver Web Management Interface version 101. This vulnerability allows an authenticated attacker to execute arbitrary shell commands with root privileges by exploiting the insecure parsing of the IPaddr parameter.

Severity Evaluation:

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

The high base score indicates a critical vulnerability due to the potential for complete system compromise, including confidentiality, integrity, and availability impacts. The attack complexity is low, and the attack vector is network-based, requiring low privileges and no user interaction.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Authenticated Access: The attacker must have valid credentials to access the web management interface.
• Parameter Manipulation: The attacker can manipulate the IPaddr parameter to inject malicious commands.

Exploitation Methods:

• Bypassing Semicolon Exclusion: The attacker can use alternate shell metacharacters, such as the pipe (|) operator, to bypass server-side checks that exclude semicolons.
• Command Injection: By appending arbitrary shell commands to the IPaddr parameter, the attacker can execute these commands with root privileges.

Example Exploit:

IPaddr=127.0.0.1|cat /etc/passwd

This command would list the contents of the /etc/passwd file, demonstrating the ability to read sensitive system files.

3. Affected Systems and Software Versions

Affected Systems:

• Product: SFX Series SuperFlex Satellite Receiver Web Management Interface
• Version: 101

Vendor:

• International Datacasting Corporation (IDC)

4. Recommended Mitigation Strategies

Immediate Mitigation:

• Access Control: Restrict access to the web management interface to trusted networks and users.
• Input Validation: Implement robust input validation and sanitization for the IPaddr parameter to prevent command injection.
• Patching: Apply vendor-provided patches or updates as soon as they become available.

Long-Term Mitigation:

• Regular Audits: Conduct regular security audits and vulnerability assessments.
• Monitoring: Implement continuous monitoring and logging to detect and respond to suspicious activities.
• User Training: Educate users on the importance of strong passwords and the risks associated with credential sharing.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to organizations using the affected IDC SFX Series SuperFlex Satellite Receiver, particularly in sectors relying on satellite communications, such as broadcasting, telecommunications, and defense. The potential for unauthorized access and command execution with root privileges could lead to data breaches, service disruptions, and compromised national security.

Regulatory Compliance:

• GDPR: Organizations must ensure that personal data is protected, and any breach could result in regulatory penalties.
• NIS Directive: Critical infrastructure providers must adhere to stringent security measures to prevent and mitigate such vulnerabilities.

6. Technical Details for Security Professionals

Vulnerability Details:

• CWE ID: CWE-78 (OS Command Injection)
• Affected Component: /IDC_Ping/main.cgi
• Parameter: IPaddr

Exploitation Steps:

1. Authentication: Obtain valid credentials for the web management interface.
2. Parameter Injection: Craft a malicious IPaddr parameter value using alternate shell metacharacters.
3. Command Execution: Submit the crafted parameter to execute arbitrary shell commands.

Detection and Response:

• Log Analysis: Monitor logs for unusual command execution patterns.
• Intrusion Detection: Deploy intrusion detection systems (IDS) to identify and alert on suspicious activities.
• Incident Response: Have an incident response plan in place to quickly address and mitigate any detected exploitation attempts.

References:

• Abdulmhsblog Post on SPFX Vulnerabilities
• NVD Detail for CVE-2026-28773

By addressing this vulnerability promptly and comprehensively, organizations can significantly reduce the risk of exploitation and ensure the security and integrity of their satellite communication systems.