CVE-2021-20251
Samba Authentication Bypass Vulnerability
Description
A flaw was found in samba. A race condition in the password lockout code may lead to the risk of brute force attacks being successful if special conditions are met.
INFO
Published Date :
March 6, 2023, 11:15 p.m.
Last Modified :
Nov. 21, 2024, 5:46 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.2
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-2021-20251.
| URL | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1929800 | Issue Tracking Third Party Advisory |
| https://bugzilla.samba.org/show_bug.cgi?id=14611 | Exploit Issue Tracking Third Party Advisory |
| https://security.gentoo.org/glsa/202309-06 | |
| https://security.netapp.com/advisory/ntap-20230331-0005/ | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1929800 | Issue Tracking Third Party Advisory |
| https://bugzilla.samba.org/show_bug.cgi?id=14611 | Exploit Issue Tracking Third Party Advisory |
| https://security.gentoo.org/glsa/202309-06 | |
| https://security.netapp.com/advisory/ntap-20230331-0005/ | 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-2021-20251 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-20251 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 https://bugzilla.redhat.com/show_bug.cgi?id=1929800 Added Reference https://bugzilla.samba.org/show_bug.cgi?id=14611 Added Reference https://security.gentoo.org/glsa/202309-06 Added Reference https://security.netapp.com/advisory/ntap-20230331-0005/ -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Sep. 17, 2023
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202309-06 [No Types Assigned] -
Modified Analysis by [email protected]
Aug. 18, 2023
Action Type Old Value New Value Changed Reference Type https://security.netapp.com/advisory/ntap-20230331-0005/ No Types Assigned https://security.netapp.com/advisory/ntap-20230331-0005/ Third Party Advisory Changed CPE Configuration OR *cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.1.0 up to (excluding) 4.12.2 OR *cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.1.0 up to (excluding) 4.16.8 *cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.17.0 up to (excluding) 4.17.4 -
CVE Modified by [email protected]
Mar. 31, 2023
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20230331-0005/ [No Types Assigned] -
Initial Analysis by [email protected]
Mar. 11, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1929800 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1929800 Issue Tracking, Third Party Advisory Changed Reference Type https://bugzilla.samba.org/show_bug.cgi?id=14611 No Types Assigned https://bugzilla.samba.org/show_bug.cgi?id=14611 Exploit, Issue Tracking, Third Party Advisory Added CWE NIST CWE-362 Added CPE Configuration OR *cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.1.0 up to (excluding) 4.12.2 Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-20251 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-2021-20251
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.24 }} 0.04%
score
0.61513
percentile