Cyber Incident Victim: Citroën Automobiles S.A.
Date:
Aug 2013
Location:
Germany
Summary
A German website operated by Citroën was compromised through an Adobe ColdFusion vulnerability, resulting in a backdoor installation that provided attackers with full server access, including potential theft of customer data such as financial details and shopping information. The breach, attributed to a known hacker group targeting multiple organizations, occurred via a third-party managed fan site used for merchandise sales. While the company reset all affected credentials and advised customers to monitor bank accounts, the incident underscored risks associated with outsourced web services and inadequate vendor security controls. The attackers exploited unpatched software vulnerabilities, though updates were later applied to mitigate the issue.
| CIA Posture | Motives | Tactics, Techniques & Procedures |
|---|---|---|
| Available to members | 1 motive | 1 technique |
| Threat Actor | Type | Location |
|---|---|---|
| 1 actor | Available to members | Available to members |
Description
In August 2013, attackers exploited vulnerabilities in Adobe’s ColdFusion web application platform to compromise shop.citroen.de, a German fan-operated Citroën merchandise website operated by third-party contractor anyMotion. The hackers installed a backdoor file on the server, granting them unrestricted command-line access and SQL database privileges equivalent to the web service user, potentially exposing all data stored on the server. This backdoor remained active for at least seven months until its discovery in March 2014 by Alex Holden of Hold Security and subsequent disclosure by The Guardian. Forensic analysis linked the intrusion to a known hacking group responsible for prior breaches at Adobe, PR Newswire, and the National White Collar Crime Center, which had systematically scanned the internet for unpatched ColdFusion instances. Citroën Germany confirmed the breach as a criminal act involving unauthorized customer data access, though the exact number of affected individuals remained unspecified. The compromised server stored customer shopping baskets, shipping addresses, and potentially financial information, prompting Citroën to notify impacted customers and advise them to monitor bank accounts for suspicious transactions.
Following the breach disclosure, anyMotion disabled the backdoor and implemented containment measures including resetting all user and administrative passwords. The company temporarily suspended e-commerce functionality on the fan site as a precautionary measure. Citroën engaged law enforcement to investigate the incident while emphasizing that direct operational control of the compromised site resided with the third-party vendor. The incident underscored systemic risks associated with third-party supply chains, as vulnerabilities in anyMotion’s security posture provided attackers indirect access to Citroën’s digital assets. Protiviti’s Rocco Grillo observed that organizations retain ultimate accountability for outsourced functions, highlighting inadequate vendor security controls as critical threat vectors. Adobe had issued patches for the exploited ColdFusion vulnerabilities prior to the Citroën breach disclosure, emphasizing the necessity of timely software updates to mitigate known attack surfaces.