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CVE-2025-53542: Command Injection Vulnerability in Kubernetes Headlamp Web UI

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Overview

This report focuses on the CVE-2025-53542, a critical vulnerability identified in the Kubernetes Headlamp project, an extensible web UI designed for Kubernetes. The vulnerability allows for command injection, which can lead to system compromise or data leakage. This issue is of particular concern due to the widespread use of Kubernetes in the tech industry, putting numerous systems at potential risk.

Vulnerability Summary

CVE ID: CVE-2025-53542
Severity: High (7.7 CVSS score)
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Impact: Potential system compromise and data leakage

Affected Products

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Product | Affected Versions

Kubernetes Headlamp | Up to 0.31.0

How the Exploit Works

The vulnerability stems from the misuse of Node.js’s execSync() function in the codeSign.js script, which is part of the macOS packaging workflow. This function executes a shell command with the provided arguments. The parameters ${teamID}, ${entitlementsPath}, and ${config.app} are sourced dynamically from the environment or application config and are supplied to the command without proper sanitization or argument separation. If these values contain malicious input, it can lead to command injection, allowing an attacker to execute arbitrary commands on the system.

Conceptual Example Code

Imagine an attacker has control over the ${teamID} environment variable and sets its value to `;rm -rf /`. The command executed with execSync() would then be equivalent to the following:

require('child_process').execSync('codesign --force --sign ${teamID} --entitlements ${entitlementsPath} ${config.app}');
//Equivalent to:
require('child_process').execSync('codesign --force --sign ;rm -rf / --entitlements ${entitlementsPath} ${config.app}');

This would result in the deletion of all files in the system’s root directory, demonstrating the potential destructive power of this vulnerability.

Mitigation Guidance

The vulnerability has been fixed in version 0.31.1 of Kubernetes Headlamp. Users are strongly advised to update to this version or later. If update is not possible, the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation method.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

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