vulnerability
Red Hat: CVE-2020-17049: delegation constrain bypass in S4U2Proxy (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 9 | (AV:N/AC:L/Au:S/C:C/I:C/A:C) | Nov 11, 2020 | May 15, 2023 | Mar 21, 2025 |
Severity
9
CVSS
(AV:N/AC:L/Au:S/C:C/I:C/A:C)
Published
Nov 11, 2020
Added
May 15, 2023
Modified
Mar 21, 2025
Description
A security feature bypass vulnerability exists in the way Key Distribution Center (KDC) determines if a service ticket can be used for delegation via Kerberos Constrained Delegation (KCD).
To exploit the vulnerability, a compromised service that is configured to use KCD could tamper with a service ticket that is not valid for delegation to force the KDC to accept it.
The update addresses this vulnerability by changing how the KDC validates service tickets used with KCD.
Solution(s)
redhat-upgrade-bind-dyndb-ldapredhat-upgrade-bind-dyndb-ldap-debuginforedhat-upgrade-bind-dyndb-ldap-debugsourceredhat-upgrade-custodiaredhat-upgrade-ipa-clientredhat-upgrade-ipa-client-commonredhat-upgrade-ipa-client-debuginforedhat-upgrade-ipa-client-epnredhat-upgrade-ipa-client-sambaredhat-upgrade-ipa-commonredhat-upgrade-ipa-debuginforedhat-upgrade-ipa-debugsourceredhat-upgrade-ipa-healthcheckredhat-upgrade-ipa-healthcheck-coreredhat-upgrade-ipa-python-compatredhat-upgrade-ipa-selinuxredhat-upgrade-ipa-serverredhat-upgrade-ipa-server-commonredhat-upgrade-ipa-server-debuginforedhat-upgrade-ipa-server-dnsredhat-upgrade-ipa-server-trust-adredhat-upgrade-ipa-server-trust-ad-debuginforedhat-upgrade-krb5-debuginforedhat-upgrade-krb5-debugsourceredhat-upgrade-krb5-develredhat-upgrade-krb5-devel-debuginforedhat-upgrade-krb5-libsredhat-upgrade-krb5-libs-debuginforedhat-upgrade-krb5-pkinitredhat-upgrade-krb5-pkinit-debuginforedhat-upgrade-krb5-serverredhat-upgrade-krb5-server-debuginforedhat-upgrade-krb5-server-ldapredhat-upgrade-krb5-server-ldap-debuginforedhat-upgrade-krb5-workstationredhat-upgrade-krb5-workstation-debuginforedhat-upgrade-libkadm5redhat-upgrade-libkadm5-debuginforedhat-upgrade-opendnssecredhat-upgrade-opendnssec-debuginforedhat-upgrade-opendnssec-debugsourceredhat-upgrade-python3-custodiaredhat-upgrade-python3-ipaclientredhat-upgrade-python3-ipalibredhat-upgrade-python3-ipaserverredhat-upgrade-python3-ipatestsredhat-upgrade-python3-jwcryptoredhat-upgrade-python3-kdcproxyredhat-upgrade-python3-pyusbredhat-upgrade-python3-qrcoderedhat-upgrade-python3-qrcode-coreredhat-upgrade-python3-yubicoredhat-upgrade-slapi-nisredhat-upgrade-slapi-nis-debuginforedhat-upgrade-slapi-nis-debugsourceredhat-upgrade-softhsmredhat-upgrade-softhsm-debuginforedhat-upgrade-softhsm-debugsourceredhat-upgrade-softhsm-devel
NEW
Explore Exposure Command
Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.