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Red Hat: CVE-2020-25719: CVE-2020-25719 samba: Samba AD DC did not always rely on the SID and PAC in Kerberos tickets (Multiple Advisories)

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Red Hat: CVE-2020-25719: CVE-2020-25719 samba: Samba AD DC did not always rely on the SID and PAC in Kerberos tickets (Multiple Advisories)

Severity
9
CVSS
(AV:N/AC:L/Au:S/C:C/I:C/A:C)
Published
12/15/2021
Created
12/17/2021
Added
12/16/2021
Modified
12/15/2023

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.

Solution(s)

  • redhat-upgrade-bind-dyndb-ldap
  • redhat-upgrade-bind-dyndb-ldap-debuginfo
  • redhat-upgrade-bind-dyndb-ldap-debugsource
  • redhat-upgrade-custodia
  • redhat-upgrade-ipa-client
  • redhat-upgrade-ipa-client-common
  • redhat-upgrade-ipa-client-debuginfo
  • redhat-upgrade-ipa-client-epn
  • redhat-upgrade-ipa-client-samba
  • redhat-upgrade-ipa-common
  • redhat-upgrade-ipa-debuginfo
  • redhat-upgrade-ipa-debugsource
  • redhat-upgrade-ipa-healthcheck
  • redhat-upgrade-ipa-healthcheck-core
  • redhat-upgrade-ipa-idoverride-memberof-plugin
  • redhat-upgrade-ipa-python-compat
  • redhat-upgrade-ipa-selinux
  • redhat-upgrade-ipa-server
  • redhat-upgrade-ipa-server-common
  • redhat-upgrade-ipa-server-debuginfo
  • redhat-upgrade-ipa-server-dns
  • redhat-upgrade-ipa-server-trust-ad
  • redhat-upgrade-ipa-server-trust-ad-debuginfo
  • redhat-upgrade-opendnssec
  • redhat-upgrade-opendnssec-debuginfo
  • redhat-upgrade-opendnssec-debugsource
  • redhat-upgrade-python2-ipaclient
  • redhat-upgrade-python2-ipalib
  • redhat-upgrade-python2-ipaserver
  • redhat-upgrade-python3-custodia
  • redhat-upgrade-python3-ipaclient
  • redhat-upgrade-python3-ipalib
  • redhat-upgrade-python3-ipaserver
  • redhat-upgrade-python3-ipatests
  • redhat-upgrade-python3-jwcrypto
  • redhat-upgrade-python3-kdcproxy
  • redhat-upgrade-python3-pyusb
  • redhat-upgrade-python3-qrcode
  • redhat-upgrade-python3-qrcode-core
  • redhat-upgrade-python3-yubico
  • redhat-upgrade-slapi-nis
  • redhat-upgrade-slapi-nis-debuginfo
  • redhat-upgrade-slapi-nis-debugsource
  • redhat-upgrade-softhsm
  • redhat-upgrade-softhsm-debuginfo
  • redhat-upgrade-softhsm-debugsource
  • redhat-upgrade-softhsm-devel

References

  • CVE-2020-25719
  • RHSA-2021:5142
  • RHSA-2021:5195
  • RHSA-2022:0007
  • RHSA-2022:0076

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