CVE-2021-26708
"Linux Kernel AF_VSOCK Privilege Escalation Vulnerability"
Description
A local privilege escalation was discovered in the Linux kernel before 5.10.13. Multiple race conditions in the AF_VSOCK implementation are caused by wrong locking in net/vmw_vsock/af_vsock.c. The race conditions were implicitly introduced in the commits that added VSOCK multi-transport support.
INFO
Published Date :
Feb. 5, 2021, 2:15 p.m.
Last Modified :
Nov. 9, 2023, 1:57 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.0
Public PoC/Exploit Available at Github
CVE-2021-26708 has a 18 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-2021-26708
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-2021-26708
.
URL | Resource |
---|---|
http://www.openwall.com/lists/oss-security/2021/02/05/6 | Mailing List Patch Third Party Advisory |
http://www.openwall.com/lists/oss-security/2021/04/09/2 | Mailing List |
http://www.openwall.com/lists/oss-security/2022/01/25/14 | Mailing List |
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.13 | Release Notes Vendor Advisory |
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c518adafa39f37858697ac9309c6cf1805581446 | Patch Vendor Advisory |
https://security.netapp.com/advisory/ntap-20210312-0008/ | Patch Third Party Advisory |
https://www.openwall.com/lists/oss-security/2021/02/04/5 | Mailing List Patch 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).
All CVE - PoC in GitHub
poc proofofconcept tester allcve cvegithub cvenew cvepoc cveupdate
None
渗透测试有关的POC、EXP、脚本、提权、小工具等---About penetration-testing python-script poc getshell csrf xss cms php-getshell domainmod-xss csrf-webshell cobub-razor cve rce sql sql-poc poc-exp bypass oa-getshell cve-cms
Assembly Python Shell PHP C++ C Go Ruby HTML Java
None
None
None
None
None
Assembly Python Shell PHP C++ C Go Ruby HTML Java
None
Project Vault Range PoC: Know your enemy and yourself to build better defense-in-depth solution!
C
None
C
None
Investigating the bug behind CVE-2021-26708
Makefile C
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-2021-26708
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-26708
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 -
CWE Remap by [email protected]
Jun. 28, 2022
Action Type Old Value New Value Changed CWE CWE-269 CWE-667 -
Modified Analysis by [email protected]
Feb. 25, 2022
Action Type Old Value New Value Changed Reference Type http://www.openwall.com/lists/oss-security/2021/04/09/2 No Types Assigned http://www.openwall.com/lists/oss-security/2021/04/09/2 Mailing List Changed Reference Type http://www.openwall.com/lists/oss-security/2022/01/25/14 No Types Assigned http://www.openwall.com/lists/oss-security/2022/01/25/14 Mailing List Changed Reference Type https://security.netapp.com/advisory/ntap-20210312-0008/ No Types Assigned https://security.netapp.com/advisory/ntap-20210312-0008/ Patch, Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:netapp:aff_baseboard_management_controller:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:fas_baseboard_management_controller:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:solidfire_baseboard_management_controller:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:baseboard_management_controller_500f_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 15.3 OR cpe:2.3:h:netapp:baseboard_management_controller_500f:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:baseboard_management_controller_a250_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 15.3 OR cpe:2.3:h:netapp:baseboard_management_controller_a250:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:hci_h410c_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:hci_h410c:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jan. 26, 2022
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2022/01/25/14 [No Types Assigned] -
CVE Modified by [email protected]
Apr. 09, 2021
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2021/04/09/2 [No Types Assigned] -
CVE Modified by [email protected]
Mar. 12, 2021
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20210312-0008/ [No Types Assigned] -
Reanalysis by [email protected]
Mar. 09, 2021
Action Type Old Value New Value Changed Reference Type https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.13 Patch, Release Notes, Vendor Advisory https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.13 Release Notes, Vendor Advisory Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.10.13 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.13 -
Initial Analysis by [email protected]
Feb. 11, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:M/Au:N/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type http://www.openwall.com/lists/oss-security/2021/02/05/6 No Types Assigned http://www.openwall.com/lists/oss-security/2021/02/05/6 Mailing List, Patch, Third Party Advisory Changed Reference Type https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.13 No Types Assigned https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.13 Patch, Release Notes, Vendor Advisory Changed Reference Type https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c518adafa39f37858697ac9309c6cf1805581446 No Types Assigned https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c518adafa39f37858697ac9309c6cf1805581446 Patch, Vendor Advisory Changed Reference Type https://www.openwall.com/lists/oss-security/2021/02/04/5 No Types Assigned https://www.openwall.com/lists/oss-security/2021/02/04/5 Mailing List, Patch, Third Party Advisory Added CWE NIST CWE-269 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.10.13 -
CVE Modified by [email protected]
Feb. 05, 2021
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2021/02/05/6 [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-2021-26708
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-2021-26708
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.05669
percentile