CVE-2022-24766

mitmproxy is an interactive, SSL/TLS-capable intercepting proxy. In mitmproxy 7.0.4 and below, a malicious client or server is able to perform HTTP request smuggling attacks through mitmproxy. This means that a malicious client/server could smuggle a request/response through mitmproxy as part of...

CVE-2021-39214

mitmproxy is an interactive, SSL/TLS-capable intercepting proxy. In mitmproxy 7.0.2 and below, a malicious client or server is able to perform HTTP request smuggling attacks through mitmproxy. This means that a malicious client/server could smuggle a request/response through mitmproxy as part of...

varnish: remote clients may cause Varnish to assert and restart which could result in DoS

An issue was discovered in Varnish Cache before 6.0.6 LTS, 6.1.x and 6.2.x before 6.2.3, and 6.3.x before 6.3.2. It occurs when communication with a TLS termination proxy uses PROXY version 2. There can be an assertion failure and daemon restart, which causes a performance loss...

Varnish Cache Input Validation Error Vulnerability

Varnish Cache is a set of reverse web caching servers. An input validation error vulnerability exists in Varnish Cache that stems from communication with a TLS proxy using the PROXY v2 version of the protocol. An attacker can exploit this vulnerability to cause assertion failures and daemon...

Inspecting TLS Web Traffic - Part 1

In this series of blogs I'm going to talk about how the continued move towards all web traffic being encrypted has impacted enterprise security. In this blog I'm going to focus on the basics - what is encrypted web traffic and how can you proactively control this. TLS encryption is the de-facto...

Transparent Man-in-the-Middle TLS Proxy: ratched

ratched is a Man-in-the-Middle MitM proxy that specifically intercepts TLS connections. It is intended to be used in conjunction with the Linux iptables REDIRECT target; all connections that should be intercepted can be redirected to the local ratched port. Through the SOORIGINALDST sockopt,...