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CVE-2018-6794 (GCVE-0-2018-6794)

Vulnerability from cvelistv5 – Published: 2018-02-07 05:00 – Updated: 2024-08-05 06:10
VLAI
Summary
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.
Severity
5.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CWE
  • n/a
Assigner
References
Date Public
2018-02-06 00:00
Show details on NVD website
To clipboard 

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    "redhat_vex": {
      "current_release_date": "2026-01-13T21:25:17+00:00",
      "cve": "CVE-2018-6794",
      "id": "CVE-2018-6794",
      "initial_release_date": "2018-02-07T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "suricata: HTTP detection bypass in detect.c and stream-tcp.c",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-6794.json",
      "version": "3"
    }
  }
}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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