EUVD-2024-31826

Comprehensive Technical Analysis of EUVD-2024-31826

1. Vulnerability Assessment and Severity Evaluation

The vulnerability identified in the gaizhenbiao/chuanhuchatgpt application, specifically a path traversal attack due to an outdated gradio component, is critical. The CVSS Base Score of 9.8 indicates a high severity, reflecting the potential for significant impact on confidentiality, integrity, and availability. The vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H underscores the following:

• Attack Vector (AV:N): The vulnerability can be exploited over the network.
• Attack Complexity (AC:L): The attack requires low complexity.
• Privileges Required (PR:N): No privileges are required to exploit the vulnerability.
• User Interaction (UI:N): No user interaction is required.
• Scope (S:U): The vulnerability does not change the security scope.
• Confidentiality (C:H): High impact on confidentiality.
• Integrity (I:H): High impact on integrity.
• Availability (A:H): High impact on availability.

2. Potential Attack Vectors and Exploitation Methods

The primary attack vector is a path traversal attack, which allows an attacker to manipulate file paths to access unauthorized files. Specifically:

• Path Traversal: An attacker can craft a URL that includes sequences like ../ to traverse directories and access files outside the intended directory, such as config.json, which contains sensitive information like API keys.
• Exploitation: The attacker can send specially crafted HTTP requests to the application, bypassing the intended restrictions and accessing sensitive files. This can be automated using tools like curl or wget.

3. Affected Systems and Software Versions

The vulnerability affects the gaizhenbiao/chuanhuchatgpt application, specifically versions prior to the fixed version released on 20240305. The outdated gradio component is the root cause, as identified in CVE-2023-51449.

4. Recommended Mitigation Strategies

To mitigate this vulnerability, the following steps are recommended:

• Update Software: Immediately update to the fixed version of gaizhenbiao/chuanhuchatgpt released on 20240305 or later.
• Input Validation: Implement robust input validation to sanitize and validate all user inputs, especially file paths.
• Access Controls: Enforce strict access controls and permissions to restrict access to sensitive files and directories.
• Monitoring and Logging: Implement monitoring and logging to detect and respond to any suspicious activities or unauthorized access attempts.
• Regular Audits: Conduct regular security audits and vulnerability assessments to identify and address potential security issues proactively.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to organizations using the gaizhenbiao/chuanhuchatgpt application, particularly those within the European Union. The potential exposure of sensitive information, such as API keys, can lead to further compromises and data breaches. This underscores the importance of timely patching and adherence to best security practices to protect against such vulnerabilities.

6. Technical Details for Security Professionals

• CVE Identifier: CVE-2024-3234
• GSD Identifier: GSD-2024-3234
• EPSS Score: 48 (indicating a moderate likelihood of exploitation)
• ENISA ID Product: gaizhenbiao/chuanhuchatgpt (versions unspecified < 20240305)
• ENISA ID Vendor: gaizhenbiao
• References:
  • Huntr Bounty
  • GitHub Commit

Security professionals should prioritize updating the affected application and implementing the recommended mitigation strategies to protect against this critical vulnerability. Regular updates and adherence to security best practices are essential to maintaining a robust cybersecurity posture.