EUVD-2024-44942

Comprehensive Technical Analysis of EUVD-2024-44942

1. Vulnerability Assessment and Severity Evaluation

The vulnerability EUVD-2024-44942, also known as CVE-2024-50529, is classified as an "Unrestricted Upload of File with Dangerous Type" vulnerability. This type of vulnerability allows an attacker to upload a web shell to a web server, potentially leading to full control over the server. The CVSS (Common Vulnerability Scoring System) base score of 9.9 indicates a critical severity level. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H breaks down as follows:

• Attack Vector (AV): Network (N) - The vulnerability is exploitable over the network.
• Attack Complexity (AC): Low (L) - The attack requires minimal skill and resources.
• Privileges Required (PR): Low (L) - The attacker needs low-level privileges to exploit the vulnerability.
• User Interaction (UI): None (N) - No user interaction is required for the attack to succeed.
• Scope (S): Changed (C) - The vulnerability affects a different security scope.
• Confidentiality (C): High (H) - The vulnerability results in a high impact on confidentiality.
• Integrity (I): High (H) - The vulnerability results in a high impact on integrity.
• Availability (A): High (H) - The vulnerability results in a high impact on availability.

2. Potential Attack Vectors and Exploitation Methods

The primary attack vector involves uploading a malicious file, such as a web shell, to the web server. This can be achieved through the following steps:

1. Identify the Vulnerable Endpoint: The attacker identifies the file upload functionality in the "Training – Courses" plugin.
2. Craft a Malicious File: The attacker creates a web shell or another malicious file designed to execute arbitrary commands on the server.
3. Upload the File: The attacker uploads the malicious file through the vulnerable file upload functionality.
4. Execute Commands: Once the file is uploaded, the attacker can execute commands on the server, potentially leading to full control over the system.

3. Affected Systems and Software Versions

The vulnerability affects the "Training – Courses" plugin developed by Rudra Innnovative Software. Specifically, it impacts versions from n/a through 2.0.1. Any system running this plugin within the specified version range is at risk.

4. Recommended Mitigation Strategies

To mitigate this vulnerability, the following steps should be taken:

1. Update the Plugin: Ensure that the "Training – Courses" plugin is updated to a version that addresses this vulnerability. If a patch is not yet available, consider disabling the plugin until a fix is released.
2. Implement File Upload Restrictions: Configure the web server to restrict the types of files that can be uploaded. Only allow safe file types and enforce strict validation.
3. Regular Security Audits: Conduct regular security audits and vulnerability assessments to identify and address similar issues.
4. Monitor for Suspicious Activity: Implement monitoring and logging to detect any suspicious file uploads or unusual server activity.
5. Use Web Application Firewalls (WAF): Deploy a WAF to filter out malicious file upload attempts and other common attack vectors.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to organizations using the affected plugin, particularly within the European Union. Given the critical nature of the vulnerability, it could lead to data breaches, unauthorized access, and potential disruption of services. The impact on confidentiality, integrity, and availability is high, making it a priority for cybersecurity teams to address promptly.

6. Technical Details for Security Professionals

• Vulnerability Type: Unrestricted Upload of File with Dangerous Type
• Affected Software: Rudra Innnovative Software – Training – Courses plugin
• Affected Versions: n/a through 2.0.1
• CVSS Score: 9.9
• CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
• Date Published: Mon Nov 04 2024 13:41:41 GMT+0000
• Date Updated: Mon Nov 04 2024 16:30:35 GMT+0000
• References: Patchstack Vulnerability Database
• Aliases: CVE-2024-50529
• Assigner: Patchstack
• ENISA ID Product: b839246f-239e-3959-b3b1-05a5177f0d06
• ENISA ID Vendor: 119ad18d-d99b-3cc2-b2ca-de9f8834ff78

Security professionals should prioritize the identification and remediation of this vulnerability to protect against potential exploitation. Regular updates and adherence to best practices in file upload handling are crucial in maintaining a secure environment.