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…
mitre·CWE-693·Published 2018-02-07
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 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. Esto afecta a la mayoría de firmas IDS para el contenido del flujo TCP y los protocolos HTTP. Las firmas para los paquetes TCP inspeccionarán ese tráfico de red como de costumbre.
| Version | Type | Source | Base | Exp | Impact | Vector |
|---|---|---|---|---|---|---|
| 2.0 | Primary | NVD | 5.0 | 10.0 | 2.9 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
| 3.0 | Primary | NVD | 5.3 | 3.9 | 1.4 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |