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CVE-2020-25719

Published: Feb 18, 2022Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-287
NVD MITRE
7.2CVSSHIGH
EPSS Score
1.7%
Top 26.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A flaw was found in the way Samba, as an Active Directory Domain Controller, implemented Kerberos name-based authentication. The Samba AD DC, could become confused about the user a ticket represents if it did not strictly require a Kerberos PAC and always use the SIDs found within. The result could include total domain compromise.

CVSS Vector Breakdown

AV:NAC:LPR:HUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-287CWE-362

Affected Products

samban/a
sambasamba
LibraryLibrary
Operating Systems / unix-bsd
debian linuxdebian
On-premOS
Operating Systems / linux-distro
fedorafedoraproject
On-premOS
Operating Systems / linux-distro
ubuntu linuxcanonical
On-premOS
Operating Systems / linux-distro
sambaoss-projectDEOperating Systems
debianoss-projectGBOperating Systemsaka debian gnu/linux
fedoraprojectoss-projectUSOperating Systemsaka fedora project
canonicalcommercialGBOperating Systemsaka canonical ltd.
and 19 more affected products View all →

Exploitability

Official Patch Available
Workaround Available
No detection template yetWe can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

MITRE ATT&CK

3 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://bugzilla.redhat.com/show_bug.cgi?id=2019732
bugzilla.redhat.com
https://www.samba.org/samba/security/CVE-2020-25719.html
samba.org
https://security.gentoo.org/glsa/202309-06
security.gentoo.org
and 14 more references View all →

Timeline

Published
Feb 18, 2022
Last Updated
Nov 21, 2024

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