EUVD-2024-47585

Comprehensive Technical Analysis of EUVD-2024-47585

1. Vulnerability Assessment and Severity Evaluation

Vulnerability Description: The InPost for WooCommerce plugin and InPost PL plugin for WordPress are vulnerable to unauthorized access and deletion of data due to a missing capability check on the parse_request function. This vulnerability affects all versions up to and including 1.4.0 for InPost for WooCommerce and 1.4.4 for InPost PL.

Severity Evaluation: The vulnerability has a CVSS Base Score of 10.0, which is the highest possible score, indicating a critical severity. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:H breaks down as follows:

• Attack Vector (AV): Network (N)
• Attack Complexity (AC): Low (L)
• Privileges Required (PR): None (N)
• User Interaction (UI): None (N)
• Scope (S): Changed (C)
• Confidentiality (C): High (H)
• Integrity (I): None (N)
• Availability (A): High (H)

This indicates that the vulnerability can be exploited remotely with low complexity, requires no privileges or user interaction, and has a high impact on confidentiality and availability.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Unauthenticated Access: Attackers can exploit the vulnerability without needing any authentication.
• Remote Exploitation: The attack can be carried out over the network, making it accessible to a wide range of potential attackers.

Exploitation Methods:

• File Reading: Attackers can read arbitrary files on both Windows and Linux servers.
• File Deletion: On Windows servers, attackers can delete arbitrary files. On Linux servers, the deletion is limited to files within the WordPress installation.

3. Affected Systems and Software Versions

Affected Plugins:

• InPost for WooCommerce: Versions up to and including 1.4.0
• InPost PL: Versions up to and including 1.4.4

Affected Environments:

• WordPress Installations: Any WordPress site using the affected versions of the plugins.
• Server Types: Both Windows and Linux servers running WordPress.

4. Recommended Mitigation Strategies

Immediate Actions:

• Update Plugins: Immediately update the InPost for WooCommerce and InPost PL plugins to versions higher than 1.4.0 and 1.4.4, respectively.
• Disable Plugins: If updates are not available, consider disabling the plugins until a patched version is released.

Long-Term Mitigation:

• Regular Updates: Ensure all plugins and WordPress core are regularly updated.
• Access Controls: Implement strict access controls and capability checks within custom plugins and themes.
• Monitoring: Use security plugins like Wordfence to monitor for suspicious activity and vulnerabilities.

5. Impact on European Cybersecurity Landscape

Regional Impact:

• E-commerce Sites: The vulnerability poses a significant risk to European e-commerce sites using WooCommerce and the affected plugins.
• Data Protection: The ability to read and delete files can lead to data breaches and loss of sensitive information, which is particularly concerning under GDPR regulations.

Regulatory Compliance:

• GDPR: Organizations must ensure they comply with GDPR by protecting personal data. This vulnerability could result in data breaches, leading to regulatory fines and reputational damage.

6. Technical Details for Security Professionals

Vulnerable Code:

• The vulnerability is located in the parse_request function within the class-helper.php and EasyPack_Helper.php files of the respective plugins.
• Code References:
  • InPost for WooCommerce
  • InPost PL

Exploit Details:

• The missing capability check allows unauthenticated users to send crafted requests to the parse_request function, leading to unauthorized file access and deletion.

Detection and Response:

• Log Analysis: Monitor server logs for unusual file access and deletion patterns.
• Intrusion Detection: Implement intrusion detection systems (IDS) to detect and respond to suspicious activities.
• Patch Management: Ensure a robust patch management process to quickly apply updates and patches.

Conclusion: The vulnerability in the InPost for WooCommerce and InPost PL plugins poses a critical risk to WordPress sites, particularly those involved in e-commerce. Immediate updates and strict access controls are essential to mitigate this risk. Organizations must also ensure compliance with GDPR and other relevant regulations to protect sensitive data and maintain trust with customers.

References:

• Wordfence Threat Intelligence
• WordPress Plugin Repository
• WordPress Plugin Repository