ElasticBeanstalk Scanner
This scanner detects the ElasticBeanstalk Subdomain Takeover in digital assets. It helps identify potential security risks associated with subdomain takeover vulnerabilities, ensuring the protection of your online assets.
Short Info
Level
High
Single Scan
Single Scan
Can be used by
Asset Owner
Estimated Time
10 seconds
Time Interval
22 days 3 hours
Scan only one
Domain, IPv4, Subdomain
Toolbox
-
ElasticBeanstalk is a managed service provided by Amazon Web Services (AWS) that allows developers to deploy and manage applications in the cloud without worrying about the underlying infrastructure. It is widely used by businesses and developers who need scalable and simplified deployment solutions for web applications and services. ElasticBeanstalk is popular among startups, large enterprises, and development teams that require a robust platform for their applications. Its main purpose is to provide an easy-to-use service for deploying, managing, and scaling applications. AWS ElasticBeanstalk offers an environment that automatedly handles deployment, from capacity provisioning, load balancing, and auto-scaling to application health monitoring.
A subdomain takeover vulnerability occurs when an attacker can claim and control a subdomain that is still listed in the DNS of a domain but no longer has active content or is misconfigured. This vulnerability poses significant security risks as it allows malicious actors to host undesirable content, phish for users' credentials, or inject malware under the legitimate domain's facade. It's prevalent when subdomains with CNAME entries lose their association with a hosted service and are not removed from the domain's DNS records. Detecting such vulnerabilities is crucial for maintaining domain integrity and preventing unauthorized use of legitimate subdomains. Regular scanning for subdomain takeovers helps ensure any deprecated links are adequately secured or decommissioned.
From a technical standpoint, the vulnerability is detected when there exists a CNAME DNS record pointing to an AWS ElasticBeanstalk subdomain that is no longer actively maintained or used. If the AWS account owner doesn't claim the CNAME, malicious actors can exploit this configuration to take over the subdomain. The core technical vulnerability lies in unclaimed CNAME entries for specific regions that can be commandeered. Potentially, any unclaimed DNS entries pointing to 'elasticbeanstalk.com' that result in an 'NXDOMAIN' are vulnerable to takeover. Such DNS misconfigurations underscore the importance of vigilant DNS record management to guard against these exploits.
When exploited, subdomain takeovers allow attackers to hijack web traffic, serve malicious content, and potentially gain access to sensitive information. Users visiting the compromised subdomain might unknowingly divulge personal or corporate credentials or download harmful software. This also damages the owner's reputation since malicious actors can exploit trust in the brand name to conduct nefarious activities. Furthermore, it can lead to SEO penalties due to the presence of dangerous content on what would appear to be legitimate subdomains, impacting the primary domain's search engine ranking and visibility. Responding to such confrontations can be costly in terms of both financial resources and brand credibility.
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