National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-18625 Detail

Current 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.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 7.5 HIGH
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/OISF/suricata/commit/9f0294fadca3dcc18c919424242a41e01f3e8318 Patch Third Party Advisory
https://github.com/OISF/suricata/commit/ea0659de7640cf6a51de5bbd1dbbb0414e4623a0 Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/01/msg00032.html
https://redmine.openinfosecfoundation.org/issues/3286 Third Party Advisory
https://redmine.openinfosecfoundation.org/issues/3395 Third Party Advisory

Weakness Enumeration

CWE-ID CWE Name Source
CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:suricata-ids:suricata:5.0.0:-:*:*:*:*:*:*
     Show Matching CPE(s)
Running on/with
 cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-18625
NVD Published Date:
01/06/2020
NVD Last Modified:
01/30/2020