Clever Cloud Takeover Detection Scanner

Clever Cloud is a Platform as a Service (PaaS) that automates application deployment and scaling for developers, enabling them to focus on coding without managing infrastructure. It is predominantly used by software development teams requiring a reliable cloud hosting solution. The platform supports a wide range of programming languages and databases, with automatic scaling to handle traffic fluctuations. Companies leverage Clever Cloud to quickly deploy, scale, and manage applications globally. With security features and infrastructure management handled by the platform, developers benefit from reduced operational complexity. Clever Cloud is favored by enterprises looking for efficient cloud solutions that facilitate rapid development and application delivery.

Subdomain takeover is a security vulnerability that occurs when a subdomain of a site is pointing to a service that is not configured or is configured incorrectly. Attackers can exploit this to host their content at the subdomain originally owned by a different organization. Vulnerable domains may lead to a variety of security risks, such as phishing, data theft, and loss of control over brand assets. This vulnerability can affect any online assets that make use of third-party hosting or interconnected services. Detecting and resolving subdomain takeovers is critical for maintaining a secure online presence. Security teams globally focus on identifying such vulnerabilities to safeguard brand reputation.

The Clever Cloud subdomain takeover vulnerability involves subdomains that have misconfigured DNS entries, creating opportunities for unauthorized users to claim and control them. The detection process involves inspecting DNS records and verifying if the subdomain is configured to an active Clever Cloud service. If the domain points to a defunct or improperly set up service, this template would identify it through specific error messages displayed. The error messages include specific text such as "The application you're trying to access doesn't seem to exist" which signal the presence of this vulnerability. Besides DNS verification, it includes keyword checking within HTTP responses to ascertain vulnerability status. By automating the detection, it helps prevent potential malicious exploits.

Exploitation of the Clever Cloud takeover vulnerability can result in severe consequences. It enables unauthorized users to project fraudulent content through a legitimate subdomain, compromising the credibility and trust of the brand. Phishing attacks can be conducted using the hijacked subdomain to gather sensitive user data. The vulnerability might lead to the spread of malware, as attackers could host harmful scripts. Loss of control over a subdomain impacts a company's online visibility and search engine rankings. Additionally, financial penalties or reputational damage may arise due to these unaddressed security gaps. Mitigating this risk involves diligent monitoring and remediation of vulnerable subdomains.

REFERENCES

• https://supras.io/new-subdomain-takeover-case-clever-cloud/