CVE-2018-5071 Explained : Impact and Mitigation

Cobham Sea Tel 116 build 222429 satellite communication system devices are vulnerable to Persistent XSS, allowing remote attackers to insert malicious JavaScript code through the TELNET shell's built-in commands.

Understanding CVE-2018-5071

This CVE involves a vulnerability in the web server of Cobham Sea Tel 116 build 222429 satellite communication system devices, known as Persistent XSS.

What is CVE-2018-5071?

Persistent XSS allows remote attackers to inject harmful JavaScript code by exploiting the TELNET shell's built-in commands on the device, specifically through the "set ship name" command.

The Impact of CVE-2018-5071

This vulnerability bears similarities to Cross Protocol Injection using SNMP, posing a significant risk to the affected devices.

Technical Details of CVE-2018-5071

Cobham Sea Tel 116 build 222429 satellite communication system devices are susceptible to the following:

Vulnerability Description

Persistent XSS exists in the web server, enabling remote attackers to inject malicious JavaScript code using the TELNET shell's commands, such as the "set ship name" command.

Affected Systems and Versions

Product: Cobham Sea Tel 116 build 222429
Vendor: Cobham
Version: Not applicable

Exploitation Mechanism

Attackers exploit the TELNET shell's commands, particularly the "set ship name" command, to insert harmful JavaScript code into the device.

Mitigation and Prevention

To address CVE-2018-5071, consider the following steps:

Immediate Steps to Take

Disable TELNET access if not required
Implement strong input validation to prevent script injection

Long-Term Security Practices

Regularly update firmware and security patches
Conduct security audits and penetration testing

Patching and Updates

Apply patches provided by Cobham to fix the vulnerability and enhance device security.