Host Header Injection Vulnerability Scanner
Identify and Address Host Header Injection Vulnerabilities
Short Info
Level
Medium
Single Scan
Single Scan
Can be used by
Asset Owner
Estimated Time
10 seconds
Time Interval
3 days
Scan only one
URL
Toolbox
-
The Host Header is a component of HTTP requests used to specify which domain is being accessed. It is commonly used in web servers, reverse proxies, and other network infrastructure to route traffic based on the domain name. Organizations use Host Headers for hosting multiple domains on a single server and enhancing security configurations.
Host Header Injection occurs when an attacker manipulates the Host Header to inject malicious payloads, leading to potential security vulnerabilities. This attack can bypass security mechanisms, inject malicious data, and redirect users to malicious sites.
Technically, this vulnerability arises when user-supplied Host Headers are not validated properly by the server. For instance, HTTP headers like "Host" or "X-Forwarded-Host" can be tampered with to inject a crafted domain, potentially leading to server misbehavior.
If exploited, Host Header Injection can result in cache poisoning, phishing attacks, data exfiltration, and unauthorized access to sensitive areas of the application. It can also enable Man-in-the-Middle (MitM) attacks in some configurations.
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