Executive Summary

CVE-2025-14695 is a remote code execution vulnerability in the `html_renderer` plugin of SamuNatsu HaloBot. The vulnerability occurs because the `render` method accepts an `action` parameter, which is a JavaScript function executed directly within a Puppeteer browser page context. Since Puppeteer has access to Node.js core modules like `child_process`, an attacker can supply a malicious `action` function to execute arbitrary system commands on the server running HaloBot. This breaks the security sandbox between plugins, allowing a low-privileged plugin to gain full control over the server. [1, 2]

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Impact Analysis

Exploitation of this vulnerability allows an attacker to execute arbitrary commands on the server with the privileges of the HaloBot process. This can lead to complete server compromise, including data exfiltration, unauthorized control of the server, and potentially using the server as part of a botnet for further attacks. [1, 2, 3]

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Detection Guidance

This vulnerability can be detected by attempting to exploit the `html_renderer` plugin's `render` method with a crafted `action` function that executes arbitrary commands. A practical detection method is to install and enable both the `html_renderer` and a proof-of-concept plugin (such as `poc_exploit`), then send the message `#exploit rce` to the bot. After this, check for the presence of a file named `RCE_SUCCESSFUL` in the HaloBot root directory, which indicates successful arbitrary code execution. Commands to verify detection include checking for the existence of this file, e.g., `ls RCE_SUCCESSFUL` or `test -f RCE_SUCCESSFUL && echo 'Vulnerable' || echo 'Not vulnerable'` on the server hosting HaloBot. [1, 2]

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Mitigation Strategies

Immediate mitigation steps include: 1) Removing the `action` parameter handling from the `render` method in the `html_renderer` plugin to prevent execution of arbitrary functions. 2) Implementing strict input validation for all parameters passed through the plugin API to ensure no untrusted code is executed. 3) Conducting a comprehensive security audit of all inter-plugin APIs to identify and fix similar insecure patterns. Since the product is no longer supported and no patches are available, replacing the affected product is also recommended. [1, 2, 3]

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Compliance Impact

The provided resources do not contain information regarding the impact of this vulnerability on compliance with common standards and regulations such as GDPR or HIPAA.

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