EUVD-2026-9372

Comprehensive Technical Analysis of EUVD-2026-9372

1. Vulnerability Assessment and Severity Evaluation

The vulnerability EUVD-2026-9372 affects the International Datacasting Corporation (IDC) SFX2100 Satellite Receiver. The issue involves a trivial password for the user (usr) account, which can be exploited by a remote unauthenticated attacker to gain unauthorized SSH access to the system. The attacker can then escalate from a restricted shell to a fully interactive shell, potentially leading to complete system compromise.

Severity Evaluation:

• Base Score: 9.2 (Critical)
• Base Score Version: 4.0
• Base Score Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

The high base score indicates a critical vulnerability due to the ease of exploitation (low complexity) and the significant impact on confidentiality and system control.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

1. Remote Unauthenticated Access: An attacker can remotely access the SFX2100 Satellite Receiver via SSH using the trivial password for the user account.
2. Shell Escalation: Once logged in, the attacker can escape the restricted shell to gain a fully interactive shell, allowing for further exploitation.

Exploitation Methods:

1. Password Guessing: The attacker can use common password guessing techniques to identify the trivial password.
2. SSH Access: Using the identified password, the attacker can log in via SSH.
3. Shell Escape: The attacker can use known methods to escape the restricted shell, such as spawning a complete pty (pseudo-terminal).

3. Affected Systems and Software Versions

Affected Systems:

• Product: SFX2100 Satellite Receiver
• Versions: 101 and SFX2100

Vendor:

• International Datacasting Corporation (IDC)

4. Recommended Mitigation Strategies

1. Immediate Actions:

   • Change Default Passwords: Immediately change the default password for the user account to a strong, complex password.
   • Disable SSH Access: If not required, disable SSH access to the device.
   • Network Segmentation: Isolate the affected devices on a separate network segment to limit potential attack vectors.

2. Long-Term Solutions:

   • Firmware Update: Apply any available firmware updates from the vendor that address this vulnerability.
   • Regular Audits: Conduct regular security audits to identify and mitigate similar vulnerabilities.
   • Access Controls: Implement strict access controls and monitoring for SSH access.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to organizations using the SFX2100 Satellite Receiver, particularly in sectors relying on satellite communications such as broadcasting, telecommunications, and emergency services. Unauthorized access to these devices can lead to data breaches, service disruptions, and potential misuse of satellite communication channels.

Given the critical nature of the vulnerability, it underscores the need for robust cybersecurity measures across the European Union, including regular vulnerability assessments, timely patch management, and enhanced incident response capabilities.

6. Technical Details for Security Professionals

Technical Overview:

• Vulnerability Type: Weak Password, Shell Escape
• Exploitability: Remote, Unauthenticated
• Impact: Unauthorized SSH access, potential full system compromise

Detection and Response:

• Log Analysis: Monitor SSH logs for unauthorized access attempts.
• Intrusion Detection Systems (IDS): Deploy IDS to detect and alert on suspicious SSH activities.
• Incident Response: Develop and implement an incident response plan specific to this vulnerability, including steps for containment, eradication, and recovery.

References:

• Vulnerability Details: Abdulmhsblog
• NVD Entry: CVE-2026-28777

By addressing this vulnerability promptly and comprehensively, organizations can significantly reduce the risk of unauthorized access and potential misuse of their satellite communication systems.