Drupalgeddon

Drupalgeddon
Name	Drupalgeddon
Discovered	2014
Affected	Drupal 7, Drupal 8
Cve	CVE-2014-3704; CVE-2018-7600; CVE-2019-6340
Severity	Critical
Mitigation	Security updates, patches, WAF rules

Drupalgeddon

Drupalgeddon refers to a series of critical remote code execution vulnerabilities affecting the Drupal content management system that prompted coordinated responses from organizations such as US-CERT, CERT-EU, Microsoft, Amazon Web Services, and Google and drove security advisories from vendors like Red Hat, Canonical (company), SUSE, Debian, and Oracle Corporation. The disclosure cycles for these vulnerabilities involved actors including Project Zero, National Cyber Security Centre (UK), Cybersecurity and Infrastructure Security Agency, and industry groups like Open Web Application Security Project and Internet Engineering Task Force. Security reporting and incident analysis were published by firms such as FireEye, Symantec, Kaspersky Lab, Trend Micro, and CrowdStrike.

Overview

The set of vulnerabilities surfaced across multiple versions of Drupal and were tracked by identifiers including CVE entries used by NIST National Vulnerability Database, MITRE Corporation, and discussed at venues like Black Hat USA, DEF CON, RSAC, SANS Institute, and OWASP Global AppSec. Independent researchers from groups such as Secunia Research, Check Point Research, Talos (Cisco Talos), and academics from institutions like Massachusetts Institute of Technology, Stanford University, Carnegie Mellon University, University of Oxford, and ETH Zurich contributed to analysis. The exploits were leveraged in campaigns attributed by analysts to actors linked to groups discussed in reports from North Atlantic Treaty Organization cybersecurity units, Europol, and national CERTs.

Vulnerabilities and Technical Details

Technical analysis published by vendors and researchers described exploitation chains involving input validation flaws in Drupal modules and core subsystems, SQL injection vectors, cross-site scripting pathways analyzed in papers at ACM CCS, Usenix Security Symposium, and IEEE Symposium on Security and Privacy, and remote code execution techniques akin to those cataloged by MITRE ATT&CK. Assessments referenced programming language specifics like PHP, databases such as MySQL, MariaDB, and PostgreSQL, web servers including Apache HTTP Server, Nginx, and runtime environments like HHVM and PHP-FPM. Analysts cited common mitigations from standards bodies like ISO/IEC 27001, cryptographic libraries such as OpenSSL, and secure coding guidelines from CERT/CC. In-depth writeups by teams at Imperva, Akamai, F5 Networks, and Cloudflare detailed payload delivery via HTTP request smuggling, parameter tampering, and misuse of APIs exemplified by discussions at IETF HTTPbis.

Timeline of Incidents and Exploits

Initial public reports and advisories were coordinated with disclosure timelines similar to processes followed by Google Project Zero and Zerodium, with emergency patches released and announced by the Drupal Association, community maintainers, and companies like Acquia. Major incident analyses were covered by outlets including The Register, Wired, The New York Times, The Guardian, and Reuters, with contributions from security blogs at Krebs on Security, Schneier on Security, and corporate blogs from Microsoft Security Response Center, Facebook Security, and Twitter Security. Law enforcement involvement included notifications from Federal Bureau of Investigation, National Crime Agency (UK), and cross-border operations coordinated by Europol.

Impact and Consequences

Exploits caused website defacements, data exfiltration, and cryptomining infestations described in remediation reports by Cisco Umbrella, Sophos, and ESET. Consequences affected sectors represented by organizations such as UNICEF, World Health Organization, United Nations, European Commission, US Department of Defense, and private companies like Netflix, Airbnb, and Shopify that rely on web platforms. Economic analyses referenced studies from Gartner, Forrester Research, McKinsey & Company, and Deloitte estimating remediation costs and reputational damage. Litigation and regulatory scrutiny involved agencies including Federal Trade Commission, Information Commissioner's Office (UK), and courts in jurisdictions invoking laws like Computer Fraud and Abuse Act and directives from European Union Agency for Cybersecurity.

Mitigation and Patch Response

Responses included release of security advisories by the Drupal Association and package updates propagated via distributions managed by Canonical (company), Red Hat via Red Hat Security Response Team, and SUSE Linux. Hosting providers including Automattic, GoDaddy, Bluehost, DigitalOcean, Linode, and cloud platforms like Amazon Web Services, Google Cloud Platform, and Microsoft Azure implemented WAF rules from vendors such as ModSecurity, Imperva Incapsula, and Cloudflare and pushed automatic updates. Best practices promoted by bodies like NIST, SANS Institute, and ISO included configuration management with tools like Ansible, Puppet, Chef, and containerization platforms such as Docker and Kubernetes to reduce attack surfaces.

Attribution and Threat Actors

Attribution analyses published by firms like Mandiant (FireEye), CrowdStrike, Recorded Future, Kaspersky Lab, and academic teams at University of Cambridge and Tel Aviv University linked exploit activity to financially motivated cybercrime groups, nation-state proxies, and opportunistic botnets similar to ones profiled by ShadowServer Foundation, Abuse.ch, and Spamhaus. Intelligence sharing occurred through networks like FIRST, AbuseIPDB, and national CERT alliances, with public-private collaboration emphasized by reports from OECD and World Economic Forum.

Category:Computer security