Rapid7 Vulnerability & Exploit Database

Debian: CVE-2019-18625: suricata -- security update

Back to Search

Debian: CVE-2019-18625: suricata -- security update

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:P/A:N)
Published
01/06/2020
Created
02/04/2020
Added
02/03/2020
Modified
02/10/2020

Description

An issue was discovered in Suricata 5.0.0. It was possible to bypass/evade any tcp based signature by faking a closed TCP session using an evil server. After the TCP SYN packet, it is possible to inject a RST ACK and a FIN ACK packet with a bad TCP Timestamp option. The client will ignore the RST ACK and the FIN ACK packets because of the bad TCP Timestamp option. Both linux and windows client are ignoring the injected packets.

Solution(s)

  • debian-upgrade-suricata

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;