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CVSS: 5.3EPSS: 59%CPEs: 2EXPL: 1

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. Suricata en versiones anteriores a la 4.0.4 es propenso a una vulnerabilidad de omisión de detección HTTP en detect.c y stream-tcp.c. Si un servidor malicioso interrumpe un flujo TCP normal y envía datos antes de que se complete el handshake tridireccional, los datos enviados por el servidor malicioso se aceptarán por parte de clientes web como el navegador web o herramientas de interfaz de línea de comandos de Linux, pero las firmas IDS de Suricata los ignorarán. • https://www.exploit-db.com/exploits/44247 https://github.com/OISF/suricata/pull/3202/commits/e1ef57c848bbe4e567d5d4b66d346a742e3f77a1 https://lists.debian.org/debian-lts-announce/2018/12/msg00000.html https://redmine.openinfosecfoundation.org/issues/2427 https://suricata-ids.org/2018/02/14/suricata-4-0-4-available • CWE-693: Protection Mechanism Failure •