CVE-2020-24394
NFS kernel incorrect permission vulnerability
Description
In the Linux kernel before 5.7.8, fs/nfsd/vfs.c (in the NFS server) can set incorrect permissions on new filesystem objects when the filesystem lacks ACL support, aka CID-22cf8419f131. This occurs because the current umask is not considered.
INFO
Published Date :
Aug. 19, 2020, 1:15 p.m.
Last Modified :
Oct. 25, 2022, 5:03 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.2
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2020-24394 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-2020-24394
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-2020-24394.
| URL | Resource |
|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00007.html | Third Party Advisory |
| https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=962254 | Issue Tracking Third Party Advisory |
| https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.8 | Release Notes Vendor Advisory |
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=22cf8419f1319ff87ec759d0ebdff4cbafaee832 | Patch Vendor Advisory |
| https://security.netapp.com/advisory/ntap-20200904-0003/ | Third Party Advisory |
| https://usn.ubuntu.com/4465-1/ | Third Party Advisory |
| https://usn.ubuntu.com/4483-1/ | Third Party Advisory |
| https://usn.ubuntu.com/4485-1/ | Third Party Advisory |
| https://www.oracle.com/security-alerts/cpuApr2021.html | Patch Third Party Advisory |
| https://www.starwindsoftware.com/security/sw-20210325-0004/ | 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).
Map Vulnerabilities into Different Layers of the Container Image
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-24394 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-24394 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 -
Reanalysis by [email protected]
Oct. 25, 2022
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:starwindsoftware:starwind_virtual_san:-:*:*:*:*:vsphere:*:* OR *cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build12533:*:*:*:vsphere:*:* *cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build12658:*:*:*:vsphere:*:* *cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build12859:*:*:*:vsphere:*:* *cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build13170:*:*:*:vsphere:*:* *cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build13586:*:*:*:vsphere:*:* *cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8:build13861:*:*:*:vsphere:*:* -
Modified Analysis by [email protected]
Oct. 14, 2022
Action Type Old Value New Value Changed Reference Type https://usn.ubuntu.com/4483-1/ No Types Assigned https://usn.ubuntu.com/4483-1/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/4485-1/ No Types Assigned https://usn.ubuntu.com/4485-1/ Third Party Advisory Changed Reference Type https://www.oracle.com/security-alerts/cpuApr2021.html No Types Assigned https://www.oracle.com/security-alerts/cpuApr2021.html Patch, Third Party Advisory Changed Reference Type https://www.starwindsoftware.com/security/sw-20210325-0004/ No Types Assigned https://www.starwindsoftware.com/security/sw-20210325-0004/ Third Party Advisory Changed CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* OR *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* Added CPE Configuration OR *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:a:oracle:sd-wan_edge:8.2:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:a:starwindsoftware:starwind_virtual_san:-:*:*:*:*:vsphere:*:* -
CVE Modified by [email protected]
Oct. 11, 2022
Action Type Old Value New Value Added Reference https://www.starwindsoftware.com/security/sw-20210325-0004/ [No Types Assigned] -
CVE Modified by [email protected]
Jun. 14, 2021
Action Type Old Value New Value Added Reference https://www.oracle.com/security-alerts/cpuApr2021.html [No Types Assigned] -
CVE Modified by [email protected]
Sep. 15, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4485-1/ [No Types Assigned] -
CVE Modified by [email protected]
Sep. 15, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4483-1/ [No Types Assigned] -
Modified Analysis by [email protected]
Sep. 04, 2020
Action Type Old Value New Value Removed CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:P/A:N) Removed CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00007.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00007.html Third Party Advisory Changed Reference Type https://security.netapp.com/advisory/ntap-20200904-0003/ No Types Assigned https://security.netapp.com/advisory/ntap-20200904-0003/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/4465-1/ No Types Assigned https://usn.ubuntu.com/4465-1/ Third Party Advisory Removed CWE NIST CWE-276 Added CWE NIST CWE-732 Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Sep. 04, 2020
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20200904-0003/ [No Types Assigned] -
CVE Modified by [email protected]
Sep. 02, 2020
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00007.html [No Types Assigned] -
CVE Modified by [email protected]
Aug. 27, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4465-1/ [No Types Assigned] -
Initial Analysis by [email protected]
Aug. 26, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:P/A:P) 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://bugs.debian.org/cgi-bin/bugreport.cgi?bug=962254 No Types Assigned https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=962254 Issue Tracking, Third Party Advisory Changed Reference Type https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.8 No Types Assigned https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.8 Release Notes, Vendor Advisory Changed Reference Type https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=22cf8419f1319ff87ec759d0ebdff4cbafaee832 No Types Assigned https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=22cf8419f1319ff87ec759d0ebdff4cbafaee832 Patch, Vendor Advisory Added CWE NIST CWE-276 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.7.8
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-24394 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-2020-24394
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
0.16405
percentile