EUVD-2024-42704

Comprehensive Technical Analysis of EUVD-2024-42704

1. Vulnerability Assessment and Severity Evaluation

Vulnerability Description: The vulnerability in Plane, an open-source project management tool, involves the use of the ** wildcard support in the /web/next.config.js file. This configuration allows the retrieval of images from any hostname, potentially enabling an attacker to induce the server to perform requests to unintended locations. This issue is classified as a Server-Side Request Forgery (SSRF) vulnerability.

Severity Evaluation: The Base Score of 9.3 (CVSS:3.1) indicates a critical severity level. The vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:H breaks down as follows:

• AV:N (Attack Vector: Network) - The vulnerability is exploitable over the network.
• AC:L (Attack Complexity: Low) - The attack requires low complexity.
• PR:N (Privileges Required: None) - No privileges are required to exploit the vulnerability.
• UI:N (User Interaction: None) - No user interaction is required.
• S:C (Scope: Changed) - The vulnerability affects a different security scope.
• C:N (Confidentiality: None) - There is no direct impact on confidentiality.
• I:L (Integrity: Low) - There is a low impact on integrity.
• A:H (Availability: High) - There is a high impact on availability.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• SSRF Attacks: An attacker could manipulate the server to make requests to internal or external systems, potentially leading to unauthorized access to sensitive data or services.
• Data Exfiltration: By inducing the server to retrieve data from unintended locations, an attacker could exfiltrate sensitive information.
• Service Disruption: The vulnerability could be exploited to cause denial-of-service (DoS) conditions by overwhelming the server with requests to unintended locations.

Exploitation Methods:

• Crafted Requests: An attacker could craft HTTP requests that exploit the wildcard support to retrieve images from arbitrary hostnames.
• Automated Scripts: Automated scripts could be used to repeatedly exploit the vulnerability, increasing the impact on availability.

3. Affected Systems and Software Versions

Affected Systems:

• Any system running Plane versions prior to 0.23.0.

Software Versions:

• Plane versions < 0.23.0

4. Recommended Mitigation Strategies

Immediate Mitigation:

• Upgrade: Upgrade to Plane version 0.23.0 or later, which includes the fix for this vulnerability.
• Patch Management: Implement a robust patch management process to ensure timely updates and patches.

Long-Term Mitigation:

• Input Validation: Implement strict input validation to prevent the use of wildcards in configuration files.
• Network Segmentation: Use network segmentation to limit the potential impact of SSRF attacks.
• Monitoring and Logging: Enhance monitoring and logging to detect and respond to suspicious activities.

5. Impact on European Cybersecurity Landscape

Impact Assessment:

• Widespread Use: Given the open-source nature of Plane, the vulnerability could affect a wide range of organizations and individuals across Europe.
• Critical Infrastructure: Organizations using Plane for project management in critical infrastructure sectors could face significant risks.
• Compliance: Non-compliance with data protection regulations (e.g., GDPR) could result in legal and financial penalties.

Regulatory Considerations:

• GDPR Compliance: Ensure that any data breaches resulting from this vulnerability are reported to the relevant authorities within the mandated timeframe.
• Cybersecurity Directives: Adhere to European cybersecurity directives and guidelines to mitigate risks.

6. Technical Details for Security Professionals

Vulnerability Details:

• The vulnerability is located in the /web/next.config.js file, where the ** wildcard support is used to retrieve images.
• The issue allows the server to perform requests to any hostname, leading to potential SSRF attacks.

Fix Implementation:

• The fix is implemented in Plane version 0.23.0. The commit b9f78ba42b70461c8c1d26638fa8b9beef6a96a1 addresses the vulnerability by removing the wildcard support and implementing stricter input validation.

References:

• GitHub Security Advisory
• GitHub Commit

Conclusion: The vulnerability in Plane is critical and requires immediate attention. Organizations should prioritize upgrading to the patched version and implement additional security measures to mitigate risks. The European cybersecurity landscape demands vigilance and adherence to regulatory guidelines to protect against such vulnerabilities.