CVE-2021-43980
Apache Tomcat HTTP Request Smuggling Vulnerability
Description
The simplified implementation of blocking reads and writes introduced in Tomcat 10 and back-ported to Tomcat 9.0.47 onwards exposed a long standing (but extremely hard to trigger) concurrency bug in Apache Tomcat 10.1.0 to 10.1.0-M12, 10.0.0-M1 to 10.0.18, 9.0.0-M1 to 9.0.60 and 8.5.0 to 8.5.77 that could cause client connections to share an Http11Processor instance resulting in responses, or part responses, to be received by the wrong client.
INFO
Published Date :
Sept. 28, 2022, 2:15 p.m.
Last Modified :
Nov. 21, 2024, 6:30 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
1.4
Exploitability Score :
2.2
Public PoC/Exploit Available at Github
CVE-2021-43980 has a 3 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-2021-43980.
| URL | Resource |
|---|---|
| http://www.openwall.com/lists/oss-security/2022/09/28/1 | Mailing List Third Party Advisory |
| https://lists.apache.org/thread/3jjqbsp6j88b198x5rmg99b1qr8ht3g3 | Mailing List Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2022/10/msg00029.html | Mailing List Third Party Advisory |
| https://www.debian.org/security/2022/dsa-5265 | Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2022/09/28/1 | Mailing List Third Party Advisory |
| https://lists.apache.org/thread/3jjqbsp6j88b198x5rmg99b1qr8ht3g3 | Mailing List Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2022/10/msg00029.html | Mailing List Third Party Advisory |
| https://www.debian.org/security/2022/dsa-5265 | 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
Java
None
Kotlin
Tips & tricks for using the Versio.io Product Lifecycle and Security API
api lifecycle lifecycle-data security-audit security-tools security-vulnerability product hardware lts maintenance release software support version longtermsupport
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-43980 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-43980 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 http://www.openwall.com/lists/oss-security/2022/09/28/1 Added Reference https://lists.apache.org/thread/3jjqbsp6j88b198x5rmg99b1qr8ht3g3 Added Reference https://lists.debian.org/debian-lts-announce/2022/10/msg00029.html Added Reference https://www.debian.org/security/2022/dsa-5265 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Nov. 10, 2022
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/10/msg00029.html No Types Assigned https://lists.debian.org/debian-lts-announce/2022/10/msg00029.html Mailing List, Third Party Advisory Changed Reference Type https://www.debian.org/security/2022/dsa-5265 No Types Assigned https://www.debian.org/security/2022/dsa-5265 Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Oct. 30, 2022
Action Type Old Value New Value Added Reference https://www.debian.org/security/2022/dsa-5265 [No Types Assigned] -
CVE Modified by [email protected]
Oct. 26, 2022
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2022/10/msg00029.html [No Types Assigned] -
Reanalysis by [email protected]
Oct. 05, 2022
Action Type Old Value New Value Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N Changed CPE Configuration OR *cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* versions from (including) 8.5.0 up to (including) 8.5.77 *cpe:2.3:a:apache:tomcat:9.0.0:milestone1:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:9.0.0:milestone2:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:9.0.0:milestone3:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:9.0.0:milestone4:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:9.0.0:milestone5:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:9.0.0:milestone6:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:9.0.0:milestone7:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:9.0.0:milestone8:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:9.0.0:milestone9:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* versions from (including) 9.0.1 up to (including) 9.0.60 *cpe:2.3:a:apache:tomcat:10.0.0:milestone1:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.0.0:milestone10:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.0.0:milestone2:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.0.0:milestone3:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.0.0:milestone4:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.0.0:milestone5:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.0.0:milestone6:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.0.0:milestone7:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.0.0:milestone8:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.0.0:milestone9:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* versions from (including) 10.0.1 up to (including) 10.1.0 OR *cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* versions from (including) 8.5.0 up to (including) 8.5.77 *cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* versions from (including) 9.0.0 up to (including) 9.0.60 *cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* versions from (including) 10.0.0 up to (including) 10.0.18 *cpe:2.3:a:apache:tomcat:10.1.0:milestone1:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.1.0:milestone10:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.1.0:milestone11:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.1.0:milestone12:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.1.0:milestone2:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.1.0:milestone3:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.1.0:milestone4:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.1.0:milestone5:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.1.0:milestone6:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.1.0:milestone7:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.1.0:milestone8:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.1.0:milestone9:*:*:*:*:*:* -
Initial Analysis by [email protected]
Sep. 30, 2022
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Changed Reference Type http://www.openwall.com/lists/oss-security/2022/09/28/1 No Types Assigned http://www.openwall.com/lists/oss-security/2022/09/28/1 Mailing List, Third Party Advisory Changed Reference Type https://lists.apache.org/thread/3jjqbsp6j88b198x5rmg99b1qr8ht3g3 No Types Assigned https://lists.apache.org/thread/3jjqbsp6j88b198x5rmg99b1qr8ht3g3 Mailing List, Vendor Advisory Added CWE NIST CWE-362 Added CPE Configuration OR *cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* versions from (including) 8.5.0 up to (including) 8.5.77 *cpe:2.3:a:apache:tomcat:9.0.0:milestone1:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:9.0.0:milestone2:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:9.0.0:milestone3:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:9.0.0:milestone4:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:9.0.0:milestone5:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:9.0.0:milestone6:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:9.0.0:milestone7:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:9.0.0:milestone8:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:9.0.0:milestone9:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* versions from (including) 9.0.1 up to (including) 9.0.60 *cpe:2.3:a:apache:tomcat:10.0.0:milestone1:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.0.0:milestone10:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.0.0:milestone2:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.0.0:milestone3:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.0.0:milestone4:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.0.0:milestone5:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.0.0:milestone6:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.0.0:milestone7:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.0.0:milestone8:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:10.0.0:milestone9:*:*:*:*:*:* *cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* versions from (including) 10.0.1 up to (including) 10.1.0 -
CVE Modified by [email protected]
Sep. 28, 2022
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2022/09/28/1 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-43980 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-2021-43980
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.15 }} -0.05%
score
0.51334
percentile