Ameeba Security Research

Defensive CVE and exploit intelligence

Ameeba Blog Search
TRENDING · 1 WEEK
Attack Vector
Vendor
Severity

CVE-2025-56816: High-risk Directory Traversal Vulnerability in Datart 1.0.0-rc.3

Views: 384

Overview

In this blog post, we will be discussing a high-severity vulnerability, CVE-2025-56816, found in Datart version 1.0.0-rc.3. This vulnerability allows attackers to commit a Directory Traversal attack, which could potentially lead to system compromise or data leakage. It primarily affects users and organizations utilizing the Datart application, and its severity lies in the fact that it could be exploited to achieve Remote Code Execution (RCE) under certain conditions.

Vulnerability Summary

CVE ID: CVE-2025-56816
Severity: High (CVSS 8.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Ameeba Chat Icon Share secrets securely

Ameeba is private infrastructure for communication and sensitive work built on encrypted identity instead of exposed corporate identity systems.

Passwords, credentials, confidential files, screenshots, internal discussions, sensitive AI context, and private coordination should not become exposed across ordinary communication platforms.

  • • Encrypted identity
  • • Private Spaces for organizations and teams
  • • End-to-end encrypted chat, calls, files, and notes
  • • Sensitive AI work and protected collaboration
  • • Built for information that cannot leak

Our mission is to secure human work alongside AI.

Product | Affected Versions

Datart | 1.0.0-rc.3

How the Exploit Works

The exploit takes advantage of the configuration file handling in the Datart 1.0.0-rc.3 application. The application permits attackers to upload arbitrary YAML files to the `config/jdbc-driver-ext.yml` path. The application then parses this file by utilizing SnakeYAML’s unsafe `load()` or `loadAs()` methods, all without any form of input sanitization. This allows for the deserialization of attacker-controlled YAML content, leading to arbitrary class instantiation. Under specific conditions, this vulnerability can be exploited to attain Remote Code Execution (RCE).

Conceptual Example Code

The following conceptual example illustrates how the vulnerability might be exploited. It is a sample HTTP request where a malicious YAML file is uploaded:

POST /upload/config/jdbc-driver-ext.yml HTTP/1.1
Host: target.example.com
Content-Type: application/yaml
{ "malicious_yaml_content": "..." }

In this example, the attacker uploads a YAML file with malicious content to the `config/jdbc-driver-ext.yml` path. The application then parses this file using the unsafe method, leading to potential arbitrary class instantiation and possible Remote Code Execution.

Mitigation

The recommendation is to apply the vendor patch as soon as possible. If the patch cannot be applied immediately, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation. It is also advisable to implement strict input validation rules to prevent the upload of arbitrary YAML files.

Want to discuss this further? Join the Ameeba Cybersecurity Group Chat.

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.

More posts

Ameeba Chat