EUVD-2024-46004

Comprehensive Technical Analysis of EUVD-2024-46004

1. Vulnerability Assessment and Severity Evaluation

The vulnerability identified as EUVD-2024-46004 pertains to an "Improper Neutralization of Special Elements Used in a Template Engine" in the Supsystic Popup plugin for WordPress. This vulnerability allows for Command Injection, which is a severe type of security flaw. The CVSS (Common Vulnerability Scoring System) base score of 9.1 indicates a critical severity level. The CVSS vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/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 is relatively easy to execute)
• PR:H - Privileges Required: High (the attacker needs high-level privileges)
• UI:N - User Interaction: None (no user interaction is required)
• S:C - Scope: Changed (the vulnerability affects a different security scope)
• C:H - Confidentiality: High (there is a high impact on confidentiality)
• I:H - Integrity: High (there is a high impact on integrity)
• A:H - Availability: High (there is a high impact on availability)

Given the high impact on confidentiality, integrity, and availability, this vulnerability poses a significant risk to systems where the affected plugin is deployed.

2. Potential Attack Vectors and Exploitation Methods

The primary attack vector for this vulnerability is Command Injection, which can be exploited through the template engine used by the Supsystic Popup plugin. An attacker with high-level privileges can inject malicious commands into the template engine, leading to remote code execution (RCE). This can be achieved by:

• Crafting specially designed input that the template engine fails to neutralize properly.
• Exploiting the vulnerability to execute arbitrary commands on the server, potentially leading to full system compromise.

3. Affected Systems and Software Versions

The vulnerability affects the Supsystic Popup plugin for WordPress, specifically versions from n/a through 1.10.29. Any WordPress site using this plugin within the specified version range is at risk.

4. Recommended Mitigation Strategies

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

• Update the Plugin: Ensure that the Supsystic Popup plugin is updated to a version that addresses this vulnerability. If a patched version is not yet available, consider disabling the plugin until a fix is released.
• Access Control: Limit access to the plugin's administrative interface to trusted users only.
• Input Validation: Implement additional input validation and sanitization measures to neutralize special elements in user input.
• Monitoring and Logging: Enhance monitoring and logging to detect any suspicious activities related to the plugin.
• Network Segmentation: Isolate critical systems and limit network access to reduce the attack surface.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant threat to the European cybersecurity landscape, particularly for organizations and individuals using the Supsystic Popup plugin. Given the widespread use of WordPress and its plugins, the potential impact could be extensive, affecting a large number of websites and users. The high severity score and the potential for remote code execution make this vulnerability a critical concern for cybersecurity professionals in Europe.

6. Technical Details for Security Professionals

For security professionals, the following technical details are pertinent:

• Vulnerability Type: Command Injection via improper neutralization of special elements in a template engine.
• Affected Component: Supsystic Popup plugin for WordPress.
• Exploitation: Requires high-level privileges but can be executed with low complexity.
• Detection: Monitor for unusual command execution patterns and anomalous activities in server logs.
• Patching: Await a security patch from the vendor and apply it promptly.
• Additional Measures: Implement Web Application Firewalls (WAFs) to filter out malicious input and consider using security plugins that provide additional layers of protection.

Conclusion

EUVD-2024-46004 is a critical vulnerability that requires immediate attention from cybersecurity professionals. The potential for remote code execution and the high impact on confidentiality, integrity, and availability make it a significant threat. Organizations should prioritize updating the affected plugin and implementing additional security measures to mitigate the risk.

References

• Patchstack Vulnerability Database
• CVE ID: CVE-2024-52434
• Assigner: Patchstack
• EPSS Score: 2
• ENISA ID Product: 42c94471-3870-3a47-8517-d6256ccadeed
• ENISA ID Vendor: dfab069d-0586-3712-bf49-bd7013152a7b