Collected research
Trailing Danger: exploring HTTP Trailer parsing discrepancies
Audits around 70 HTTP implementations for how they handle chunked trailer fields and shows that merging trailers into the header section, or validating them loosely, lets an attacker inject headers the front-end never inspected. That bypasses proxy access rules and vhost checks, and where the framing headers can be overridden it splits one request into two.
Record
- Researcher
- Sebastiano Sartor, Sebastiano Sartor - sebsrt and @s3bsrt
- Published by
- sebsrt - Sebastiano Sartor
- Date
- Topic
- HTTP
In the archive
Related sources
- cpp-httplib advisory Advisory
- http4s advisory Advisory
- Eventlet advisory Advisory
- Libevent advisory Advisory
- Riphttp testing tool
- Riphttplib testing library
- Trailer-Merge vulnerable lab
- TrailingDanger challenge
Tags
This page is the archive's own catalogue record. The research is the work of Sebastiano Sartor, Sebastiano Sartor - sebsrt and @s3bsrt, first published at the original source. Preserved copies are kept so the citation survives its host; this one was last captured on .