Virtual Event: Threat Detection and Incident Response Summit - Watch Sessions
Connect with us

Hi, what are you looking for?



Recently Patched Drupal Flaw Exploited in the Wild

Attackers have been attempting to exploit a highly critical vulnerability in a third-party Drupal module. The flaw was addressed two months ago, but many website administrators have apparently still not applied the patches.

Attackers have been attempting to exploit a highly critical vulnerability in a third-party Drupal module. The flaw was addressed two months ago, but many website administrators have apparently still not applied the patches.

The vulnerability affects the RESTful Web Services (RESTWS) module, which enables developers to expose Drupal entities as RESTful web services. Versions prior to 7.x-2.6 and 7.x-1.7 allow an anonymous attacker to send specially crafted requests and execute arbitrary PHP code on targeted websites.

The issue, reported by Devin Zuczek, was one of the three Drupal module vulnerabilities resolved on July 13. A proof-of-concept (PoC) exploit and a Metasploit module were released soon after.

The SANS Institute’s Internet Storm Center reported seeing attempts to exploit the vulnerability. The organization’s honeypots detected 44 exploit attempts coming from 16 different IP addresses on Wednesday.

According to Johannes B. Ullrich, the CTO of the SANS Internet Storm Center, the exploits are simply designed to display a string, which indicates that the attackers might be trying to find vulnerable systems.

Ullrich said they had been seeing exploitation attempts since July, but previous versions of the payload were using a slightly different test.

An analysis of the IP addresses responsible for the attacks revealed that most of them are associated with Drupal websites that have likely been compromised and are now being used to scan the web for other potential targets.

Advertisement. Scroll to continue reading.

“In my quick sampling, I didn’t find any obvious malicious content on these sites. I would have expected some advertisement or maybe even malware, but maybe they are still building out their network,” Ullrich explained.

Drupal vulnerabilities are often targeted by cybercriminals, even long after they have been patched. Sucuri reported recently that a flaw patched nearly two years ago, dubbed “Drupalgeddon,” is still being exploited to hack websites.

Related: Drupal Security Updates Patch Two Vulnerabilities

Written By

Eduard Kovacs (@EduardKovacs) is a contributing editor at SecurityWeek. He worked as a high school IT teacher for two years before starting a career in journalism as Softpedia’s security news reporter. Eduard holds a bachelor’s degree in industrial informatics and a master’s degree in computer techniques applied in electrical engineering.

Click to comment

Daily Briefing Newsletter

Subscribe to the SecurityWeek Email Briefing to stay informed on the latest threats, trends, and technology, along with insightful columns from industry experts.

SecurityWeek’s Threat Detection and Incident Response Summit brings together security practitioners from around the world to share war stories on breaches, APT attacks and threat intelligence.


Securityweek’s CISO Forum will address issues and challenges that are top of mind for today’s security leaders and what the future looks like as chief defenders of the enterprise.


Expert Insights

Related Content


Less than a week after announcing that it would suspended service indefinitely due to a conflict with an (at the time) unnamed security researcher...

Data Breaches

OpenAI has confirmed a ChatGPT data breach on the same day a security firm reported seeing the use of a component affected by an...

Risk Management

The supply chain threat is directly linked to attack surface management, but the supply chain must be known and understood before it can be...


The latest Chrome update brings patches for eight vulnerabilities, including seven reported by external researchers.


Patch Tuesday: Microsoft warns vulnerability (CVE-2023-23397) could lead to exploitation before an email is viewed in the Preview Pane.


Apple has released updates for macOS, iOS and Safari and they all include a WebKit patch for a zero-day vulnerability tracked as CVE-2023-23529.

IoT Security

A group of seven security researchers have discovered numerous vulnerabilities in vehicles from 16 car makers, including bugs that allowed them to control car...

Application Security

Drupal released updates that resolve four vulnerabilities in Drupal core and three plugins.