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RedhatCVE-2020-25719

HistoryFeb 18, 2022 - 6:15 p.m.

CVE-2020-25719

2022-02-1818:15:08

CWE-287

CWE-362

redhat

web.nvd.nist.gov

1334

samba

active directory

kerberos

authentication

domain compromise

cve-2020-25719

nvd

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:S/C:C/I:C/A:C

CVSS3

7.2

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

AI Score

7.5

Confidence

High

EPSS

0.001

Percentile

47.0%

JSON

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.

Affected configurations

Nvd

Vulners

Node

sambasambaRange4.0.0–4.13.14

sambasambaRange4.14.0–4.14.10

sambasambaRange4.15.0–4.15.2

Node

debiandebian_linuxMatch9.0

debiandebian_linuxMatch10.0

Node

fedoraprojectfedoraMatch33

fedoraprojectfedoraMatch34

fedoraprojectfedoraMatch35

Node

canonicalubuntu_linuxMatch20.04lts

canonicalubuntu_linuxMatch21.04

canonicalubuntu_linuxMatch21.10

Node

redhatenterprise_linuxMatch7.0

redhatenterprise_linuxMatch8.0

redhatenterprise_linux_desktopMatch7.0

redhatenterprise_linux_eusMatch8.2

redhatenterprise_linux_eusMatch8.4

redhatenterprise_linux_for_ibm_z_systemsMatch7.0

redhatenterprise_linux_for_ibm_z_systemsMatch8.0

redhatenterprise_linux_for_ibm_z_systems_eusMatch8.2

redhatenterprise_linux_for_ibm_z_systems_eusMatch8.4

redhatenterprise_linux_for_power_big_endianMatch7.0

redhatenterprise_linux_for_power_little_endianMatch7.0

redhatenterprise_linux_for_power_little_endianMatch8.0

redhatenterprise_linux_for_power_little_endian_eusMatch8.2

redhatenterprise_linux_for_power_little_endian_eusMatch8.4

redhatenterprise_linux_for_scientific_computingMatch7.0

redhatenterprise_linux_server_ausMatch8.2

redhatenterprise_linux_server_ausMatch8.4

redhatenterprise_linux_server_tusMatch8.2

redhatenterprise_linux_server_tusMatch8.4

redhatenterprise_linux_server_update_services_for_sap_solutionsMatch8.2

redhatenterprise_linux_server_update_services_for_sap_solutionsMatch8.4

redhatenterprise_linux_workstationMatch7.0

VendorProductVersionCPE
sambasamba*cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
debiandebian_linux9.0cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
debiandebian_linux10.0cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
fedoraprojectfedora33cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
fedoraprojectfedora34cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
fedoraprojectfedora35cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
canonicalubuntu_linux20.04cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
canonicalubuntu_linux21.04cpe:2.3:o:canonical:ubuntu_linux:21.04:*:*:*:*:*:*:*
canonicalubuntu_linux21.10cpe:2.3:o:canonical:ubuntu_linux:21.10:*:*:*:*:*:*:*
redhatenterprise_linux7.0cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
samba	samba	*	cpe:2.3:a:samba:samba::::::::
debian	debian_linux	9.0	cpe:2.3:o:debian:debian_linux:9.0:::::::*
debian	debian_linux	10.0	cpe:2.3:o:debian:debian_linux:10.0:::::::*
fedoraproject	fedora	33	cpe:2.3:o:fedoraproject:fedora:33:::::::*
fedoraproject	fedora	34	cpe:2.3:o:fedoraproject:fedora:34:::::::*
fedoraproject	fedora	35	cpe:2.3:o:fedoraproject:fedora:35:::::::*
canonical	ubuntu_linux	20.04	cpe:2.3:o:canonical:ubuntu_linux:20.04::::lts:::
canonical	ubuntu_linux	21.04	cpe:2.3:o:canonical:ubuntu_linux:21.04:::::::*
canonical	ubuntu_linux	21.10	cpe:2.3:o:canonical:ubuntu_linux:21.10:::::::*
redhat	enterprise_linux	7.0	cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*

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CNA Affected

[
  {
    "vendor": "n/a",
    "product": "samba",
    "versions": [
      {
        "version": "samba 4.15.2, samba 4.14.10, samba 4.13.14",
        "status": "affected"
      }
    ]
  }
]