CVE-2019-19886
Trustwave ModSecurity Denial of Service Vulnerability
Description
Trustwave ModSecurity 3.0.0 through 3.0.3 allows an attacker to send crafted requests that may, when sent quickly in large volumes, lead to the server becoming slow or unresponsive (Denial of Service) because of a flaw in Transaction::addRequestHeader in transaction.cc.
INFO
Published Date :
Jan. 21, 2020, 10:15 p.m.
Last Modified :
July 3, 2025, 8:59 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2019-19886
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.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update the libmodsecurity package.
- Reboot the system if required.
Public PoC/Exploit Available at Github
CVE-2019-19886 has a 5 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2019-19886.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-19886 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-2019-19886
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).
中间件的exp
None
Python Shell C# Java PHP
安全类各家文库大乱斗
HTML CSS JavaScript Go Python Shell C
None
Python Shell C# Java PHP
None
Python Shell C# Java
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-19886 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-19886 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.
-
CPE Deprecation Remap by [email protected]
Jul. 03, 2025
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:trustwave:modsecurity:*:*:*:*:*:*:*:* versions from (including) 3.0.0 from (including) 3.0.3 OR *cpe:2.3:a:owasp:modsecurity:*:*:*:*:*:*:*:* versions from (including) 3.0.0 from (including) 3.0.3 -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GWVUC54OPU7ICFYIXXVGQ5DOTMR4Z6ZY/ Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JI3MNFRNUZD6RAJ5CPQZSUXQXDZ2K7IL/ Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M7IIUNYIEZOWHRWWRVT3FR45MLE6HGDY/ Added Reference https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/modsecurity-denial-of-service-details-cve-2019-19886/ -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M7IIUNYIEZOWHRWWRVT3FR45MLE6HGDY/ [No types assigned] Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GWVUC54OPU7ICFYIXXVGQ5DOTMR4Z6ZY/ [No types assigned] Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JI3MNFRNUZD6RAJ5CPQZSUXQXDZ2K7IL/ [No types assigned] Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/M7IIUNYIEZOWHRWWRVT3FR45MLE6HGDY/ Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/GWVUC54OPU7ICFYIXXVGQ5DOTMR4Z6ZY/ Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/JI3MNFRNUZD6RAJ5CPQZSUXQXDZ2K7IL/ -
Modified Analysis by [email protected]
Feb. 01, 2023
Action Type Old Value New Value Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/GWVUC54OPU7ICFYIXXVGQ5DOTMR4Z6ZY/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/GWVUC54OPU7ICFYIXXVGQ5DOTMR4Z6ZY/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/JI3MNFRNUZD6RAJ5CPQZSUXQXDZ2K7IL/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/JI3MNFRNUZD6RAJ5CPQZSUXQXDZ2K7IL/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/M7IIUNYIEZOWHRWWRVT3FR45MLE6HGDY/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/M7IIUNYIEZOWHRWWRVT3FR45MLE6HGDY/ Mailing List, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Mar. 30, 2020
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/JI3MNFRNUZD6RAJ5CPQZSUXQXDZ2K7IL/ [No Types Assigned] -
CVE Modified by [email protected]
Mar. 30, 2020
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/GWVUC54OPU7ICFYIXXVGQ5DOTMR4Z6ZY/ [No Types Assigned] -
CVE Modified by [email protected]
Mar. 30, 2020
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/M7IIUNYIEZOWHRWWRVT3FR45MLE6HGDY/ [No Types Assigned] -
Initial Analysis by [email protected]
Jan. 28, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/modsecurity-denial-of-service-details-cve-2019-19886/ No Types Assigned https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/modsecurity-denial-of-service-details-cve-2019-19886/ Vendor Advisory Added CWE NIST CWE-404 Added CPE Configuration OR *cpe:2.3:a:trustwave:modsecurity:*:*:*:*:*:*:*:* versions from (including) 3.0.0 up to (including) 3.0.3
Vulnerability Scoring Details
Base CVSS Score: 7.5
Base CVSS Score: 5
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
4.01 }} 2.30%
score
0.88021
percentile