EUVD-2024-35184

Comprehensive Technical Analysis of EUVD-2024-35184

1. Vulnerability Assessment and Severity Evaluation

Vulnerability Description: The EUVD entry EUVD-2024-35184 describes an arbitrary file upload vulnerability in the gok4 method of inxedu version 2024.4. This vulnerability allows attackers to execute arbitrary code by uploading a specially crafted .jsp file.

Severity Evaluation: The vulnerability has a CVSS Base Score of 9.8, which is classified as critical. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H indicates the following:

• Attack Vector (AV): Network (N) - The vulnerability is exploitable over the network.
• Attack Complexity (AC): Low (L) - The attack requires minimal skill or resources.
• Privileges Required (PR): None (N) - No special privileges are needed to exploit the vulnerability.
• User Interaction (UI): None (N) - No user interaction is required for the attack to succeed.
• Scope (S): Unchanged (U) - The vulnerability does not change the security scope.
• Confidentiality (C): High (H) - The vulnerability allows for complete compromise of confidentiality.
• Integrity (I): High (H) - The vulnerability allows for complete compromise of integrity.
• Availability (A): High (H) - The vulnerability allows for complete compromise of availability.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Network-Based Attacks: Given the AV:N rating, attackers can exploit this vulnerability remotely over the network.
• File Upload Mechanism: The gok4 method in inxedu is the entry point for the attack, allowing attackers to upload malicious .jsp files.

Exploitation Methods:

• Crafted .jsp File Upload: Attackers can create a .jsp file containing malicious code and upload it through the gok4 method. Once uploaded, the server executes the code, leading to arbitrary code execution.
• Automated Scripts: Attackers may use automated scripts to scan for vulnerable inxedu installations and exploit the vulnerability en masse.

3. Affected Systems and Software Versions

Affected Systems:

• inxedu v2024.4: The specific version mentioned in the vulnerability description.
• Potentially Other Versions: While the entry specifies version 2024.4, other versions of inxedu may also be affected if they share the same codebase or have not patched the vulnerability.

4. Recommended Mitigation Strategies

Immediate Mitigation:

• Patching: Apply the latest security patches provided by the vendor to fix the vulnerability.
• Disable File Uploads: Temporarily disable the gok4 method or any file upload functionality until a patch is available.
• Input Validation: Implement strict input validation to ensure only safe file types are uploaded.

Long-Term Mitigation:

• Regular Updates: Ensure that all software, including inxedu, is regularly updated to the latest versions.
• Security Audits: Conduct regular security audits and vulnerability assessments to identify and mitigate potential vulnerabilities.
• Web Application Firewalls (WAF): Deploy WAFs to monitor and block suspicious file uploads and other malicious activities.

5. Impact on European Cybersecurity Landscape

Impact Assessment:

• Widespread Exploitation: Given the critical nature of the vulnerability and its ease of exploitation, it poses a significant risk to organizations using inxedu.
• Data Breaches: Successful exploitation can lead to data breaches, unauthorized access, and data manipulation.
• Service Disruption: The vulnerability can be used to disrupt services, leading to downtime and financial losses.

Regulatory Compliance:

• GDPR: Organizations must ensure compliance with GDPR by protecting personal data and reporting breaches promptly.
• NIS Directive: Critical infrastructure providers must adhere to the NIS Directive to maintain security and resilience.

6. Technical Details for Security Professionals

Technical Analysis:

• Vulnerability Type: Arbitrary file upload leading to remote code execution.
• Exploit Code: Attackers can use publicly available exploit code or develop custom scripts to exploit the vulnerability.
• Detection: Monitor network traffic for unusual file uploads and execute regular security scans to detect anomalies.
• Response: Implement incident response plans to quickly identify and mitigate any successful exploitation attempts.

References:

• Vendor Website: inxedu
• GitHub Repository: Exploit Code

Conclusion: The EUVD-2024-35184 vulnerability in inxedu v2024.4 is critical and requires immediate attention. Organizations should prioritize patching and implementing robust security measures to mitigate the risk. Regular updates, security audits, and compliance with regulatory requirements are essential to safeguard against such vulnerabilities.