CVE-2021-43267
"Linux TIPC MSG_CRYPTO Validation Vulnerability"
Description
An issue was discovered in net/tipc/crypto.c in the Linux kernel before 5.14.16. The Transparent Inter-Process Communication (TIPC) functionality allows remote attackers to exploit insufficient validation of user-supplied sizes for the MSG_CRYPTO message type.
INFO
Published Date :
Nov. 2, 2021, 11:15 p.m.
Last Modified :
Nov. 7, 2023, 3:39 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2021-43267 has a 16 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-2021-43267
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-2021-43267.
| URL | Resource |
|---|---|
| http://www.openwall.com/lists/oss-security/2022/02/10/1 | Exploit Mailing List Third Party Advisory |
| https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.16 | Mailing List Release Notes Vendor Advisory |
| https://github.com/torvalds/linux/commit/fa40d9734a57bcbfa79a280189799f76c88f7bb0 | Patch Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CVWL7HZV5T5OEKJPO2D67RMFMKBBXGGB/ | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RDDEW4APTYKJK365HC2JZIVXYUV7ZRN7/ | |
| https://security.netapp.com/advisory/ntap-20211125-0002/ | 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
C Shell Python Assembly Ruby Makefile Meson
None
Go Shell Makefile C Batchfile
Auto Root / Privilege Escalation Exploit
autoroot privilege privilege-escalation root
Shell
Challenge Problem #1 - Linux Kernel (NOTE: This code does not reflect the active state of what will be used at competition time, please refer to resources inside of the competition environment)
Dockerfile Shell Python
Linux privilege escalation exploits collection.
C Shell Python Assembly Ruby Makefile Meson
None
None
Vault Exploit Defense
Makefile Shell C
None
C
Local PoC exploit for CVE-2021-43267 (Linux TIPC)
Python
trusty poc Provide it to legitimate people
Linux Eelvation(持续更新)
cve-2021-3156 cve-2019-7304 cve-2019-13272 cve-2018-18955 cve-2018-1000001 cve-2018-17182 cve-2017-1000367 cve-2017-1000112 cve-2017-16995 cve-2017-16939 linux-kernel elevation cve-2021-4034 cve-2022-0847
C Shell Python Ruby Makefile HTML
Linux kernel CVE exploit analysis report and relative debug environment. You don't need to compile Linux kernel and configure your environment anymore.
C Shell Makefile Meson
Kernel Address Space Layout Derandomization (KASLD) - A collection of various techniques to infer the Linux kernel base virtual address as an unprivileged local user, for the purpose of bypassing Kernel Address Space Layout Randomization (KASLR).
kaslr linux linux-kernel linux-kaslr kernel-exploit kernel
C Shell Makefile
Anything about kernel security. CTF kernel pwn, kernel exploit, kernel fuzz and kernel defense paper, kernel debugging technique, kernel CVE debug.
C Shell Makefile
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-43267 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-43267 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 -
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/RDDEW4APTYKJK365HC2JZIVXYUV7ZRN7/ [No types assigned] Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CVWL7HZV5T5OEKJPO2D67RMFMKBBXGGB/ [No types assigned] Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/RDDEW4APTYKJK365HC2JZIVXYUV7ZRN7/ Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/CVWL7HZV5T5OEKJPO2D67RMFMKBBXGGB/ -
CWE Remap by [email protected]
Aug. 08, 2023
Action Type Old Value New Value Changed CWE CWE-20 CWE-1284 -
Reanalysis by [email protected]
Nov. 03, 2022
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.10 up to (excluding) 5.14.16 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.10 up to (excluding) 5.10.77 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.14.16 -
Modified Analysis by [email protected]
Feb. 28, 2022
Action Type Old Value New Value Changed Reference Type http://www.openwall.com/lists/oss-security/2022/02/10/1 No Types Assigned http://www.openwall.com/lists/oss-security/2022/02/10/1 Exploit, Mailing List, Third Party Advisory -
CVE Modified by [email protected]
Feb. 10, 2022
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2022/02/10/1 [No Types Assigned] -
Modified Analysis by [email protected]
Nov. 29, 2021
Action Type Old Value New Value Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/CVWL7HZV5T5OEKJPO2D67RMFMKBBXGGB/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/CVWL7HZV5T5OEKJPO2D67RMFMKBBXGGB/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/RDDEW4APTYKJK365HC2JZIVXYUV7ZRN7/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/RDDEW4APTYKJK365HC2JZIVXYUV7ZRN7/ Mailing List, Third Party Advisory Changed Reference Type https://security.netapp.com/advisory/ntap-20211125-0002/ No Types Assigned https://security.netapp.com/advisory/ntap-20211125-0002/ Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 25, 2021
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20211125-0002/ [No Types Assigned] -
CVE Modified by [email protected]
Nov. 06, 2021
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/CVWL7HZV5T5OEKJPO2D67RMFMKBBXGGB/ [No Types Assigned] -
CVE Modified by [email protected]
Nov. 06, 2021
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/RDDEW4APTYKJK365HC2JZIVXYUV7ZRN7/ [No Types Assigned] -
Reanalysis by [email protected]
Nov. 05, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.14.16 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.10 up to (excluding) 5.14.16 -
Initial Analysis by [email protected]
Nov. 04, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.16 No Types Assigned https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.16 Mailing List, Release Notes, Vendor Advisory Changed Reference Type https://github.com/torvalds/linux/commit/fa40d9734a57bcbfa79a280189799f76c88f7bb0 No Types Assigned https://github.com/torvalds/linux/commit/fa40d9734a57bcbfa79a280189799f76c88f7bb0 Patch, Third Party Advisory Added CWE NIST CWE-20 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.14.16
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-43267 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-2021-43267
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
4.76 }} 0.42%
score
0.92783
percentile