CVE-2021-3859
Undertow HTTP2 Denial of Service Vulnerability
Description
A flaw was found in Undertow that tripped the client-side invocation timeout with certain calls made over HTTP2. This flaw allows an attacker to carry out denial of service attacks.
INFO
Published Date :
Aug. 26, 2022, 4:15 p.m.
Last Modified :
Dec. 13, 2022, 2:25 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2021-3859 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2021-3859
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.
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-2021-3859.
| URL | Resource |
|---|---|
| https://access.redhat.com/security/cve/CVE-2021-3859 | Vendor Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2010378 | Issue Tracking Vendor Advisory |
| https://github.com/undertow-io/undertow/commit/e43f0ada3f4da6e8579e0020cec3cb1a81e487c2 | Patch Third Party Advisory |
| https://github.com/undertow-io/undertow/pull/1296 | Third Party Advisory |
| https://issues.redhat.com/browse/UNDERTOW-1979 | Issue Tracking Patch Vendor Advisory |
| https://security.netapp.com/advisory/ntap-20221201-0004/ | Third Party Advisory |
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).
None
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-3859 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-3859 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 [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Dec. 13, 2022
Action Type Old Value New Value Changed Reference Type https://security.netapp.com/advisory/ntap-20221201-0004/ No Types Assigned https://security.netapp.com/advisory/ntap-20221201-0004/ Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:netapp:cloud_secure_agent:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Dec. 02, 2022
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20221201-0004/ [No Types Assigned] -
Initial Analysis by [email protected]
Sep. 01, 2022
Action Type Old Value New Value 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://access.redhat.com/security/cve/CVE-2021-3859 No Types Assigned https://access.redhat.com/security/cve/CVE-2021-3859 Vendor Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2010378 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2010378 Issue Tracking, Vendor Advisory Changed Reference Type https://github.com/undertow-io/undertow/commit/e43f0ada3f4da6e8579e0020cec3cb1a81e487c2 No Types Assigned https://github.com/undertow-io/undertow/commit/e43f0ada3f4da6e8579e0020cec3cb1a81e487c2 Patch, Third Party Advisory Changed Reference Type https://github.com/undertow-io/undertow/pull/1296 No Types Assigned https://github.com/undertow-io/undertow/pull/1296 Third Party Advisory Changed Reference Type https://issues.redhat.com/browse/UNDERTOW-1979 No Types Assigned https://issues.redhat.com/browse/UNDERTOW-1979 Issue Tracking, Patch, Vendor Advisory Added CWE NIST CWE-668 Added CPE Configuration OR *cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.3:*:*:*:*:*:*:* *cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.4:*:*:*:*:*:*:* *cpe:2.3:a:redhat:single_sign-on:7.4.10:*:*:*:*:*:*:* *cpe:2.3:a:redhat:single_sign-on:7.5.1:*:*:*:*:*:*:* *cpe:2.3:a:redhat:undertow:*:*:*:*:*:*:*:* versions up to (excluding) 2.2.15
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-3859 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-2021-3859
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.59 }} 0.09%
score
0.77998
percentile