🔒 Fix MITM vulnerability by enforcing strict TLS verification - #8
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Removes the `verify_ssl` configuration option and explicitly sets secure defaults using `ssl.create_default_context()`. This prevents the proxy from being vulnerable to Man-In-The-Middle (MITM) attacks by explicitly disabling insecure overrides such as `ssl.CERT_NONE` and `check_hostname = False`. Modifications extend across `domain_fronter`, `h2_transport`, and `proxy_server`. Co-authored-by: maattyi <228237318+maattyi@users.noreply.github.com>
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🎯 What: The vulnerability fixed was the ability to bypass SSL certificate validation and hostname checking by setting
⚠️ Risk: When
verify_ssl=Falsein the configuration.verify_ssl=Falsewas set, the application would disable hostname checking (check_hostname = False) and set the verification mode tossl.CERT_NONE. This completely bypasses TLS security checks, leaving the proxy and its downstream connections open to Man-in-the-Middle (MITM) attacks. Any attacker on the network could present a fraudulent certificate, intercepting, modifying, or reading the sensitive data meant for the actual servers.🛡️ Solution: The
verify_sslconfiguration option and all its related parameters have been completely removed across all related components (DomainFronter,H2Transport,ProxyServer). The application now exclusively relies onssl.create_default_context()without any insecure overrides, which strictly enforces certificate validation (ssl.CERT_REQUIRED) and robust hostname verification, effectively closing the MITM vulnerability.PR created automatically by Jules for task 15229617384818167353 started by @maattyi