CVE-2021-4037
Linux XFS Group Permission Escalation Vulnerability
Description
A vulnerability was found in the fs/inode.c:inode_init_owner() function logic of the LInux kernel that allows local users to create files for the XFS file-system with an unintended group ownership and with group execution and SGID permission bits set, in a scenario where a directory is SGID and belongs to a certain group and is writable by a user who is not a member of this group. This can lead to excessive permissions granted in case when they should not. This vulnerability is similar to the previous CVE-2018-13405 and adds the missed fix for the XFS.
INFO
Published Date :
Aug. 24, 2022, 4:15 p.m.
Last Modified :
Dec. 8, 2022, 3:40 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
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-2021-4037.
| URL | Resource |
|---|---|
| https://access.redhat.com/security/cve/CVE-2021-4037 | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2004810 | Issue Tracking Permissions Required Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2027239 | Issue Tracking Third Party Advisory |
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=01ea173e103e | Mailing List Patch Vendor Advisory |
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0fa3ecd87848 | Mailing List Patch Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html | Mailing List Third Party Advisory |
| https://www.debian.org/security/2022/dsa-5257 | 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-4037 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-4037 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. 08, 2022
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html No Types Assigned https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html Mailing List, Third Party Advisory Changed CPE Configuration OR *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 01, 2022
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html [No Types Assigned] -
Modified Analysis by [email protected]
Oct. 28, 2022
Action Type Old Value New Value Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2004810 Permissions Required, Third Party Advisory https://bugzilla.redhat.com/show_bug.cgi?id=2004810 Issue Tracking, Permissions Required, Third Party Advisory Changed Reference Type https://www.debian.org/security/2022/dsa-5257 No Types Assigned https://www.debian.org/security/2022/dsa-5257 Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Oct. 19, 2022
Action Type Old Value New Value Added Reference https://www.debian.org/security/2022/dsa-5257 [No Types Assigned] -
Initial Analysis by [email protected]
Aug. 29, 2022
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://access.redhat.com/security/cve/CVE-2021-4037 No Types Assigned https://access.redhat.com/security/cve/CVE-2021-4037 Third Party Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2004810 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2004810 Permissions Required, Third Party Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2027239 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2027239 Issue Tracking, Third Party Advisory Changed Reference Type https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=01ea173e103e No Types Assigned https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=01ea173e103e Mailing List, Patch, Vendor Advisory Changed Reference Type https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0fa3ecd87848 No Types Assigned https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0fa3ecd87848 Mailing List, Patch, Vendor Advisory Added CWE NIST NVD-CWE-Other Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.11
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-4037 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-2021-4037
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} 0.00%
score
0.15441
percentile