CVE-2024-11045

Comprehensive Technical Analysis of CVE-2024-11045

1. Vulnerability Assessment and Severity Evaluation

CVE ID: CVE-2024-11045 CVSS Score: 9.6

The Cross-Site WebSocket Hijacking (CSWSH) vulnerability in automatic1111/stable-diffusion-webui version 1.10.0 is rated with a high CVSS score of 9.6, indicating a critical severity. This score reflects the potential for significant impact, including unauthorized actions, data exfiltration, and denial of service (DoS). The lack of proper validation on WebSocket connections at ws://127.0.0.1:7860/queue/join allows attackers to exploit the vulnerability, leading to severe security breaches.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

1. Unauthorized Cloning of Server Extensions: An attacker can exploit the vulnerability to clone malicious server extensions from a GitHub repository, thereby introducing malicious code into the server environment.
2. Execution of Malicious Scripts: Once the malicious extension is cloned, the attacker can execute arbitrary scripts, leading to further compromise of the server.
3. Data Exfiltration: The attacker can exfiltrate sensitive data from the server, including user information, configuration files, and other critical data.
4. Denial of Service (DoS): The attacker can overload the server with malicious WebSocket connections, leading to a DoS condition and rendering the server unavailable to legitimate users.

Exploitation Methods:

• WebSocket Hijacking: The attacker can hijack the WebSocket connection by exploiting the lack of proper validation, allowing them to perform unauthorized actions.
• Malicious Extension Cloning: The attacker can clone a malicious extension from a GitHub repository, which can then be executed on the server.
• Script Injection: The attacker can inject malicious scripts through the cloned extension, leading to further exploitation.

3. Affected Systems and Software Versions

Affected Software:

• automatic1111/stable-diffusion-webui version 1.10.0

Affected Systems:

• Any system running the vulnerable version of automatic1111/stable-diffusion-webui with WebSocket connections enabled.

4. Recommended Mitigation Strategies

1. Update to the Latest Version: Ensure that the automatic1111/stable-diffusion-webui software is updated to the latest version that includes a fix for this vulnerability.
2. Implement WebSocket Validation: Add proper validation mechanisms for WebSocket connections to prevent unauthorized access.
3. Monitor and Log WebSocket Connections: Implement monitoring and logging of WebSocket connections to detect and respond to suspicious activities.
4. Restrict Access: Limit access to the WebSocket endpoint to trusted sources only.
5. Regular Security Audits: Conduct regular security audits and vulnerability assessments to identify and mitigate potential security risks.

5. Impact on Cybersecurity Landscape

The CVE-2024-11045 vulnerability highlights the importance of proper validation and security measures for WebSocket connections. The potential for unauthorized actions, data exfiltration, and DoS attacks underscores the need for robust security practices in web applications. This vulnerability serves as a reminder for organizations to prioritize security in their software development lifecycle and to regularly update and patch their systems to mitigate such risks.

6. Technical Details for Security Professionals

Vulnerability Details:

• Vulnerable Endpoint: ws://127.0.0.1:7860/queue/join
• Exploitation Mechanism: Lack of proper validation on WebSocket connections allows attackers to perform unauthorized actions, including cloning malicious server extensions.

Detection and Response:

• Detection: Implement intrusion detection systems (IDS) and intrusion prevention systems (IPS) to monitor WebSocket connections and detect anomalous activities.
• Response: Develop an incident response plan that includes steps for identifying, containing, and remediating the vulnerability. Ensure that affected systems are isolated and patched promptly.

Prevention:

• Code Review: Conduct thorough code reviews to identify and fix vulnerabilities related to WebSocket connections.
• Security Training: Provide security training for developers to ensure they are aware of best practices for securing WebSocket connections.

References:

• Huntr Advisory

By addressing this vulnerability promptly and implementing robust security measures, organizations can significantly reduce the risk of exploitation and protect their systems from potential attacks.