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TI-2020-15733 Aliases CVE-2020-25719GHSA-882h-52g4-fpjv

Improper authentication in samba

Priority LOW 35CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-287.

Summary

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.

Why it matters now

EPSS 0.01687 77th percentileScored 2026-11-07
Fix Fixed Red Hat: 4 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—sambasamba 4.15.2, samba 4.14.10, samba 4.13.14—No fix listedCNA
  • samba Vendor— Affected samba 4.15.2, samba 4.14.10, samba 4.13.14 Fixed in — No fix listed CNA

CPE configurations NVD · 31

CPEVersionsRoleVendor
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*4.0.0 to before 4.13.14; 4.14.0 to before 4.14.10; 4.15.0 to before 4.15.2VulnerableSamba
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*10.0VulnerableDebian
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*33VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*34VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*35VulnerableFedoraproject
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*20.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:21.04:*:*:*:*:*:*:*21.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:21.10:*:*:*:*:*:*:*21.10VulnerableCanonical
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
  • cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* Versions 4.0.0 to before 4.13.14; 4.14.0 to before 4.14.10; 4.15.0 to before 4.15.2 Vulnerable ·Samba
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
  • cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* Versions 33 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Versions 34 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* Versions 35 Vulnerable ·Fedoraproject
  • cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* Versions 20.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:21.04:*:*:*:*:*:*:* Versions 21.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:21.10:*:*:*:*:*:*:* Versions 21.10 Vulnerable ·Canonical
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
Show 21 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*8.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:*8.2VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:*8.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:*:*:*:*:*:*:*8.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.2:*:*:*:*:*:*:*8.2VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.4:*:*:*:*:*:*:*8.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:*:*:*:*:*:*:*8.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.2:*:*:*:*:*:*:*8.2VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.4:*:*:*:*:*:*:*8.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_for_scientific_computing:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:*8.2VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:*8.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:*8.2VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:*8.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:8.2:*:*:*:*:*:*:*8.2VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:8.4:*:*:*:*:*:*:*8.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:* Versions 8.2 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:* Versions 8.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.2:*:*:*:*:*:*:* Versions 8.2 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.4:*:*:*:*:*:*:* Versions 8.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.2:*:*:*:*:*:*:* Versions 8.2 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.4:*:*:*:*:*:*:* Versions 8.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_for_scientific_computing:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:* Versions 8.2 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:* Versions 8.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:* Versions 8.2 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:* Versions 8.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:8.2:*:*:*:*:*:*:* Versions 8.2 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:8.4:*:*:*:*:*:*:* Versions 8.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat

Remediation

Red Hat 4 advisories

  • RHSA-2022:0076 Released 2022-01-11 · Red Hat rating Moderate
    idm:DL1 security update
    • Red Hat Enterprise Linux AppStream EUS (v. 8.2) bind-dyndb-ldap-11.2-3.module+el8.2.0+4921+923e30d5.aarch64::idm:DL1, bind-dyndb-ldap-11.2-3.module+el8.2.0+4921+923e30d5.ppc64le::idm:DL1, bind-dyndb-ldap-11.2-3.module+el8.2.0+4921+923e30d5.s390x::idm:DL1 +47
  • RHSA-2022:0007 Released 2022-01-04 · Red Hat rating Moderate
    idm:DL1 security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.4) bind-dyndb-ldap-11.6-2.module+el8.4.0+9328+4ec4e316.aarch64::idm:DL1, bind-dyndb-ldap-11.6-2.module+el8.4.0+9328+4ec4e316.ppc64le::idm:DL1, bind-dyndb-ldap-11.6-2.module+el8.4.0+9328+4ec4e316.s390x::idm:DL1 +47
  • RHSA-2021:5195 Released 2021-12-16 · Red Hat rating Moderate
    ipa security and bug fix update
    • Red Hat Enterprise Linux Client (v. 7) ipa-4.6.8-5.el7_9.10, ipa-client-4.6.8-5.el7_9.10, ipa-client-common-4.6.8-5.el7_9.10 +4
    • Red Hat Enterprise Linux Client Optional (v. 7) ipa-server-4.6.8-5.el7_9.10, ipa-server-common-4.6.8-5.el7_9.10, ipa-server-dns-4.6.8-5.el7_9.10 +2
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) ipa-server-4.6.8-5.el7_9.10, ipa-server-common-4.6.8-5.el7_9.10, ipa-server-dns-4.6.8-5.el7_9.10 +2
    • Red Hat Enterprise Linux Server (v. 7) ipa-4.6.8-5.el7_9.10, ipa-client-4.6.8-5.el7_9.10, ipa-client-common-4.6.8-5.el7_9.10 +9
    • Red Hat Enterprise Linux Workstation (v. 7) ipa-4.6.8-5.el7_9.10, ipa-client-4.6.8-5.el7_9.10, ipa-client-common-4.6.8-5.el7_9.10 +9
Show 1 more Red Hat advisories
  • RHSA-2021:5142 Released 2021-12-15 · Red Hat rating Moderate
    idm:DL1 security update
    • Red Hat Enterprise Linux AppStream (v. 8) bind-dyndb-ldap-11.6-2.module+el8.4.0+9328+4ec4e316.aarch64::idm:DL1, bind-dyndb-ldap-11.6-2.module+el8.4.0+9328+4ec4e316.ppc64le::idm:DL1, bind-dyndb-ldap-11.6-2.module+el8.4.0+9328+4ec4e316.s390x::idm:DL1 +47

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2021:5142
Red Hat Enterprise Linux AppStream EUS (v. 8.2)Fixed RHSA-2022:0076
Red Hat Enterprise Linux AppStream EUS (v.8.4)Fixed RHSA-2022:0007
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2021:5195
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2021:5195
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2021:5195
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2021:5195
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2021:5195
Not affected: 5 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9
  • Red Hat Storage 3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-25719
  2. 2026-10-03 Alias added: GHSA-882h-52g4-fpjv

References

Patch 1

Advisory 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences