Protection Mechanism Failure Affecting suricata package, versions *


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
23.48% (97th percentile)

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  • Snyk IDSNYK-DEBIAN9-SURICATA-281673
  • published7 Feb 2018
  • disclosed7 Feb 2018

Introduced: 7 Feb 2018

CVE-2018-6794  (opens in a new tab)
CWE-693  (opens in a new tab)

How to fix?

There is no fixed version for Debian:9 suricata.

NVD Description

Note: Versions mentioned in the description apply only to the upstream suricata package and not the suricata package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

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.