EUVD-2023-34553

Comprehensive Technical Analysis of EUVD-2023-34553

1. Vulnerability Assessment and Severity Evaluation

The vulnerability described in EUVD-2023-34553 is an arbitrary file upload vulnerability in the /admin/ajax.php?action=save_menu component of the Online Food Ordering System v2.0. This vulnerability allows attackers to execute arbitrary code by uploading a crafted PHP file. The severity of this vulnerability is rated with a CVSS Base Score of 9.8, which is considered 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 and resources.
• Privileges Required (PR): None (N) - No special privileges are required 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 affects the same security scope.
• Confidentiality (C): High (H) - The vulnerability results in a complete loss of confidentiality.
• Integrity (I): High (H) - The vulnerability results in a complete loss of integrity.
• Availability (A): High (H) - The vulnerability results in a complete loss of availability.

2. Potential Attack Vectors and Exploitation Methods

The primary attack vector involves exploiting the arbitrary file upload vulnerability to upload a malicious PHP file. Once the file is uploaded, the attacker can execute arbitrary code on the server, leading to a variety of potential exploits:

• Remote Code Execution (RCE): The attacker can execute commands on the server, potentially leading to full system compromise.
• Data Exfiltration: The attacker can exfiltrate sensitive data, including user information, financial data, and other confidential information.
• Persistent Access: The attacker can establish a backdoor for persistent access to the system.
• Lateral Movement: The attacker can use the compromised system as a pivot point to move laterally within the network.

3. Affected Systems and Software Versions

The vulnerability specifically affects the Online Food Ordering System v2.0. Any organization or individual using this version of the software is at risk. It is crucial to identify all instances of this software within the organization and apply the necessary patches or updates.

4. Recommended Mitigation Strategies

To mitigate the risk associated with this vulnerability, the following strategies are recommended:

• Patch Management: Immediately apply the latest security patches or updates provided by the vendor.
• Input Validation: Implement strict input validation and sanitization for file uploads to prevent malicious files from being uploaded.
• Access Controls: Restrict access to the /admin/ajax.php?action=save_menu endpoint to authorized users only.
• Network Segmentation: Segment the network to limit the potential impact of a successful exploit.
• Monitoring and Logging: Implement robust monitoring and logging to detect and respond to any suspicious activities.
• Regular Security Audits: Conduct regular security audits and vulnerability assessments to identify and address potential vulnerabilities.

5. Impact on European Cybersecurity Landscape

The impact of this vulnerability on the European cybersecurity landscape is significant. Given the widespread use of online food ordering systems, a successful exploit could lead to data breaches, financial losses, and reputational damage for affected organizations. The high severity score and the ease of exploitation make it a critical concern for cybersecurity professionals and organizations across Europe.

6. Technical Details for Security Professionals

For security professionals, the following technical details are essential:

• Vulnerability Identification: The vulnerability can be identified by examining the /admin/ajax.php?action=save_menu endpoint for inadequate input validation and sanitization.
• Exploit Detection: Implement intrusion detection systems (IDS) and intrusion prevention systems (IPS) to detect and block attempts to exploit this vulnerability.
• Code Review: Conduct a thorough code review of the affected component to identify and remediate the vulnerability.
• Security Testing: Perform penetration testing and vulnerability scanning to ensure that the vulnerability has been effectively mitigated.
• Incident Response: Develop and implement an incident response plan to quickly detect and respond to any successful exploits.

Conclusion

EUVD-2023-34553 represents a critical vulnerability in the Online Food Ordering System v2.0. Organizations must prioritize patching and implementing robust security measures to mitigate the risk. The potential impact on the European cybersecurity landscape underscores the importance of proactive cybersecurity practices and continuous monitoring.

References

• GitHub Bug Report
• Aliases: CVE-2023-30122, GSD-2023-30122
• Assigner: Mitre
• EPSS: 1
• ENISA ID Product: [{"id":"1290be24-bb6d-35bb-9946-7a65ec190d4a","product":{"name":"n/a"},"product_version":"n/a"}]
• ENISA ID Vendor: [{"id":"10b881ee-30e8-325f-b30c-12db2ecf41a7","vendor":{"name":"n/a"}}]