7.5
HIGH CVSS 3.1
CVE-2019-18625
Suricata TCP Timestamp Bypass
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.

INFO

Published Date :

Jan. 6, 2020, 9:15 p.m.

Last Modified :

Nov. 21, 2024, 4:33 a.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2019-18625 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
1 Debian debian_linux
1 Suricata-ids suricata
1 Microsoft windows
1 Oisf suricata
: Total Affected Vendor : 5 | Products : 5
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.1 HIGH [email protected]
Solution
Follow the instructions below to mitigate the CVE-2019-18625 vulnerability.
Upgrade the affected suricata package.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2019-18625.

URL 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 Mailing List Third Party Advisory
https://redmine.openinfosecfoundation.org/issues/3286 Third Party Advisory
https://redmine.openinfosecfoundation.org/issues/3395 Third Party Advisory
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 Mailing List Third Party Advisory
https://redmine.openinfosecfoundation.org/issues/3286 Third Party Advisory
https://redmine.openinfosecfoundation.org/issues/3395 Third Party Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-18625 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2019-18625 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2019-18625 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2019-18625 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://github.com/OISF/suricata/commit/9f0294fadca3dcc18c919424242a41e01f3e8318
    Added Reference https://github.com/OISF/suricata/commit/ea0659de7640cf6a51de5bbd1dbbb0414e4623a0
    Added Reference https://lists.debian.org/debian-lts-announce/2020/01/msg00032.html
    Added Reference https://redmine.openinfosecfoundation.org/issues/3286
    Added Reference https://redmine.openinfosecfoundation.org/issues/3395
  • CPE Deprecation Remap by [email protected]

    Oct. 22, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:suricata-ids:suricata:5.0.0:-:*:*:*:*:*:* OR *cpe:2.3:a:oisf:suricata:5.0.0:-:*:*:*:*:*:*
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Feb. 01, 2023

    Action Type Old Value New Value
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/01/msg00032.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/01/msg00032.html Mailing List, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
  • CWE Remap by [email protected]

    Aug. 24, 2020

    Action Type Old Value New Value
    Changed CWE CWE-74 NVD-CWE-noinfo
  • CVE Modified by [email protected]

    Jan. 30, 2020

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2020/01/msg00032.html [No Types Assigned]
  • Initial Analysis by [email protected]

    Jan. 15, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:P/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
    Changed Reference Type https://github.com/OISF/suricata/commit/9f0294fadca3dcc18c919424242a41e01f3e8318 No Types Assigned https://github.com/OISF/suricata/commit/9f0294fadca3dcc18c919424242a41e01f3e8318 Patch, Third Party Advisory
    Changed Reference Type https://github.com/OISF/suricata/commit/ea0659de7640cf6a51de5bbd1dbbb0414e4623a0 No Types Assigned https://github.com/OISF/suricata/commit/ea0659de7640cf6a51de5bbd1dbbb0414e4623a0 Patch, Third Party Advisory
    Changed Reference Type https://redmine.openinfosecfoundation.org/issues/3286 No Types Assigned https://redmine.openinfosecfoundation.org/issues/3286 Third Party Advisory
    Changed Reference Type https://redmine.openinfosecfoundation.org/issues/3395 No Types Assigned https://redmine.openinfosecfoundation.org/issues/3395 Third Party Advisory
    Added CWE NIST CWE-74
    Added CPE Configuration AND OR *cpe:2.3:a:suricata-ids:suricata:5.0.0:-:*:*:*:*:*:* OR cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 7.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 5
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.34 }} 0.06%

score

0.56189

percentile