External risk intelligence

Drupal Core Remote Code Execution Vulnerability

CVE advisoryKnown Exploit

CVE-2018-7602

A vulnerability in Drupal core enables remote code execution, potentially allowing attackers to compromise websites. This issue is actively exploited, posing a business risk. Organizations using affected Drupal versions should prioritize mitigation.Drupal core systems contain a vulnerability that allows for remote code

4Halo Surface Signal

Code Injection

Drupal

7.0 to before 7.598.4.0 to before 8.4.88.5.0 to before 8.5.37.08.09.0

External exposure likelihood

Halo Surface Signal score for CVE-2018-7602

This vulnerability affects Drupal, a content management system commonly deployed as an internet-facing web application. As a public-facing web platform, it is designed to be reachable by users over the internet, making the attack surface readily accessible to remote, unauthenticated actors in typical configurations.

Horizon Alert

Summary of the vulnerability and why it matters

Drupal core systems contain a vulnerability that allows for remote code execution. This flaw could enable attackers to compromise Drupal websites through various methods. The impact can include unauthorized access and control over affected systems.

  • Vulnerable Drupal core subsystems.
  • Weakness allows unauthorized code execution.
  • Potential for website compromise.

Attack Path

How an attacker could exploit the issue

The described vulnerability in Drupal allows remote code execution through various attack vectors. This could lead to a compromise of the affected Drupal site. The vulnerability is known to be exploited in the wild.

  • External systems are exposed.
  • Attackers gain unauthorized access.
  • Unauthenticated requests execute malicious code.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability in Drupal allows for remote code execution, meaning attackers could potentially compromise Drupal sites. This issue is actively being exploited in the wild, indicating a significant threat to organizations using affected versions of Drupal. The severity of this vulnerability warrants prompt attention to mitigate business risk.

  • Attackers require no special skill.
  • No access or conditions needed.
  • High business risk or urgency.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

A critical remote code execution vulnerability impacts Drupal core, potentially allowing attackers to compromise Drupal sites. This issue is actively exploited in the wild, posing a significant business risk. Organizations must act quickly to address this vulnerability to protect their systems and data.

  • Identify affected Drupal assets.
  • Reduce exposure or isolate risk.
  • Apply vendor fixes and validate.
  • Monitor for related issues.

Frequently asked questions

What is Drupal core and its purpose in website development?

Drupal core is the fundamental software that powers the Drupal content management system. It provides the essential tools and framework for building and managing websites, ranging from personal blogs to large enterprise applications, by facilitating content creation, organization, and publication.

What type of security flaw does CVE-2018-7602 represent and what is its weakness class?

CVE-2018-7602 details a critical remote code execution vulnerability within Drupal core. This weakness is classified under CWE-94, indicating a code injection flaw that permits attackers to insert and execute arbitrary code on a vulnerable Drupal installation, potentially leading to a complete system takeover.

How can attackers exploit CVE-2018-7602, and what is the scope of its impact?

Attackers can exploit CVE-2018-7602 through various unauthenticated network-based attack vectors targeting multiple subsystems within Drupal. Successful exploitation allows for remote code execution, potentially compromising the entire Drupal site without any special privileges or conditions required from the attacker.

What is the significance of CVE-2018-7602, particularly concerning the Halo Surface Signal?

CVE-2018-7602 is highly significant as it represents a critical remote code execution vulnerability in Drupal core, which is commonly used for internet-facing websites. The Halo Surface Signal indicates a 'Likely' risk due to Drupal's nature as a public-facing web platform, making its attack surface readily accessible to remote, unauthenticated actors.

What steps should be taken to address the CVE-2018-7602 vulnerability?

To address CVE-2018-7602, organizations must first identify all Drupal assets running vulnerable versions. It is crucial to apply vendor-provided patches and updates as recommended by Drupal. Monitoring for any signs of compromise and validating the successful implementation of fixes are also essential steps.

References