Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
High
Attack Vector
Network
0

CVE-2020-25719

Disclosure Date: February 18, 2022
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

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.

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CVSS V3 Severity and Metrics
Base Score:
7.2 High
Impact Score:
5.9
Exploitability Score:
1.2
Vector:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
High
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High

General Information

Vendors

  • canonical,
  • debian,
  • fedoraproject,
  • redhat,
  • samba

Products

  • debian linux 10.0,
  • debian linux 9.0,
  • enterprise linux 7.0,
  • enterprise linux 8.0,
  • enterprise linux desktop 7.0,
  • enterprise linux eus 8.2,
  • enterprise linux eus 8.4,
  • enterprise linux for ibm z systems 7.0,
  • enterprise linux for ibm z systems 8.0,
  • enterprise linux for ibm z systems eus 8.2,
  • enterprise linux for ibm z systems eus 8.4,
  • enterprise linux for power big endian 7.0,
  • enterprise linux for power little endian 7.0,
  • enterprise linux for power little endian 8.0,
  • enterprise linux for power little endian eus 8.2,
  • enterprise linux for power little endian eus 8.4,
  • enterprise linux for scientific computing 7.0,
  • enterprise linux server aus 8.2,
  • enterprise linux server aus 8.4,
  • enterprise linux server tus 8.2,
  • enterprise linux server tus 8.4,
  • enterprise linux server update services for sap solutions 8.2,
  • enterprise linux server update services for sap solutions 8.4,
  • enterprise linux workstation 7.0,
  • fedora 33,
  • fedora 34,
  • fedora 35,
  • samba,
  • ubuntu linux 20.04,
  • ubuntu linux 21.04,
  • ubuntu linux 21.10

Additional Info

Technical Analysis