BIT-ENVOY-2024-45807 oghttp2 crash on OnBeginHeadersForStream in envoy

Envoy is a cloud-native high-performance edge/middle/service proxy. Envoy's 1.31 is using oghttp as the default HTTP/2 codec, and there are potential bugs around stream management in the codec. To resolve this Envoy will switch off the oghttp2 by default. The impact of this issue is that envoy wi...

BIT-ENVOY-2024-23327 Crash in proxy protocol when command type of LOCAL in Envoy

Envoy is a high-performance edge/middle/service proxy. When PPv2 is enabled both on a listener and subsequent cluster, the Envoy instance will segfault when attempting to craft the upstream PPv2 header. This occurs when the downstream request has a command type of LOCAL and does not have the...

How to Analyze Malware's Network Traffic in A Sandbox

Malware analysis encompasses a broad range of activities, including examining the malware's network traffic. To be effective at it, it's crucial to understand the common challenges and how to overcome them. Here are three prevalent issues you may encounter and the tools you'll need to address the...

CVE-2022-32210

Undici.ProxyAgent never verifies the remote server's certificate, and always exposes all request & response data to the proxy. This unexpectedly means that proxies can MitM all HTTPS traffic, and if the proxy's URL is HTTP then it also means that nominally HTTPS requests are actually sent via...

CVE-2022-29227 Use after free in Envoy

Envoy is a cloud-native high-performance edge/middle/service proxy. In versions prior to 1.22.1 if Envoy attempts to send an internal redirect of an HTTP request consisting of more than HTTP headers, there’s a lifetime bug which can be triggered. If while replaying the request Envoy sends a local...

RDPY - Remote Desktop Protocol in Twisted Python

RDPY is a pure Python implementation of the Microsoft RDP Remote Desktop Protocol protocol client and server side. RDPY is built over the event driven network engine Twisted. RDPY support standard RDP security layer, RDP over SSL and NLA authentication through ntlmv2 authentication protocol. RDPY...