CVE-2021-20220
Undertow HTTP Request Smuggling Vulnerability
Description
A flaw was found in Undertow. A regression in the fix for CVE-2020-10687 was found. HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS attack, or obtain sensitive information from request other than their own. The highest threat from this vulnerability is to data confidentiality and integrity.
INFO
Published Date :
Feb. 23, 2021, 6:15 p.m.
Last Modified :
Feb. 22, 2022, 2:53 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
2.5
Exploitability Score :
2.2
Public PoC/Exploit Available at Github
CVE-2021-20220 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-2021-20220
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-2021-20220.
| URL | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1923133 | Issue Tracking Vendor Advisory |
| https://security.netapp.com/advisory/ntap-20220210-0013/ | 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).
v8 learning stuff
JavaScript
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-20220 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-20220 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]
Feb. 22, 2022
Action Type Old Value New Value Changed Reference Type https://security.netapp.com/advisory/ntap-20220210-0013/ No Types Assigned https://security.netapp.com/advisory/ntap-20220210-0013/ Third Party Advisory Added CWE NIST CWE-444 Added CPE Configuration OR *cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:linux:*:* *cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:* *cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:windows:*:* *cpe:2.3:a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Feb. 10, 2022
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20220210-0013/ [No Types Assigned] -
Initial Analysis by [email protected]
Mar. 01, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1923133 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1923133 Issue Tracking, Vendor Advisory Added CPE Configuration OR *cpe:2.3:a:redhat:undertow:*:*:*:*:*:*:*:* versions up to (excluding) 2.0.34 *cpe:2.3:a:redhat:undertow:*:*:*:*:*:*:*:* versions from (including) 2.1.0 up to (excluding) 2.1.6
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-20220 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-2021-20220
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.09 }} 0.01%
score
0.38031
percentile