Published: 23/07/2018 Updated: 03/10/2019

CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10

CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9

VMScore: 445

Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N

Suricata prior to 4.0.5 stops TCP stream inspection upon a TCP RST from a server. This allows detection bypass because Windows TCP clients proceed with normal processing of TCP data that arrives shortly after an RST (i.e., they act as if the RST had not yet been received).

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suricata-ids suricata

IDS Bypass tricks

Disclaimer These programs is for Educational purpose ONLY Do not use it without permission inject_server: Proof-Of-Concept for CVE-2018-6794 If as a server side you break a normal TCP 3 way handshake packets order and inject some response data before 3whs is complete then data still will be received by the client but some IDS engines may skip content checks on that Client

NVD-CWE-noinfo https://suricata-ids.org/2018/07/18/suricata-4-0-5-available/https://redmine.openinfosecfoundation.org/issues/2501 https://github.com/OISF/suricata/pull/3428/commits/843d0b7a10bb45627f94764a6c5d468a24143345 https://github.com/kirillwow/ids_bypass https://nvd.nist.gov https://github.com/kirillwow/ids_bypass

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CVE-2018-14568

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