Horizon Alert
Summary of the vulnerability and why it matters
Drupal core versions are vulnerable due to improper data sanitization in certain field types. This weakness can allow for the execution of arbitrary PHP code, potentially impacting system integrity and data confidentiality. Organizations with specific web services modules enabled are at risk if they permit PATCH or POST requests.
- Vulnerable Drupal core versions
- Improper data sanitization
- Arbitrary code execution
Attack Path
How an attacker could exploit the issue
This vulnerability allows for arbitrary code execution when specific web services modules are enabled and non-form data is processed. Attackers can exploit this by sending specially crafted data to affected systems, potentially leading to compromised data and system control. The impact extends to organizations using these Drupal versions with the RESTful Web Services or similar modules active.
- Exposed web services.
- Attacker sends crafted data.
- Arbitrary code execution.
Live Threat
Current exploitation, exposure, and threat context
This vulnerability allows attackers to execute arbitrary code on affected systems. The risk is amplified because it can be exploited remotely without requiring user interaction, posing a significant threat to organizations utilizing the vulnerable Drupal versions. Remediation is crucial to prevent unauthorized access and potential data breaches.
- Likely attacker skill level: Moderate.
- Required access or conditions: Network access and specific modules enabled.
- Business risk or urgency: High.
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
This vulnerability in Drupal Core may allow for arbitrary PHP code execution if specific modules are enabled and the system receives specially crafted data. Organizations should prioritize identifying and securing their Drupal installations that meet these conditions to mitigate potential business risk. The issue arises from improper sanitization of data from non-form sources within certain field types.
- Find exposed Drupal assets.
- Reduce exposure or isolate risk.
- Fix, verify, and monitor.
