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Suricata before 4.0.4 is prone to an HTTP detection bypass vulnerability in detect.c and stream-tcp.c. If a malicious server breaks a normal TCP flow...
CVE-2018-6794
First seen on SecPulse
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2018-6794 suricata Fixed in: 1:4.0.4-1
Original description The description as published by the source.
Suricata before 4.0.4 is prone to an HTTP detection bypass vulnerability in detect.c and stream-tcp.c. If a malicious server breaks a normal TCP flow and sends data before the 3-way handshake is complete, then the data sent by the malicious server will be accepted by web clients such as a web browser or Linux CLI utilities, but ignored by Suricata IDS signatures. This mostly affects IDS signatures for the HTTP protocol and TCP stream content; signatures for TCP packets will inspect such network traffic as usual.
References
- advisory lists.debian.org
- advisory redmine.openinfosecfoundation.org
- advisory suricata-ids.org
- patch github.com
- report exploit-db.com