Improper Privilege Management Affecting libsss_nss_idmap package, versions <0:1.16.4-21.el7
Threat Intelligence
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Start learning- Snyk IDSNYK-RHEL7-LIBSSSNSSIDMAP-4945524
- published26 Jul 2021
- disclosed4 Feb 2019
Introduced: 4 Feb 2019
CVE-2018-16838 (opens in a new tab)How to fix?
Upgrade RHEL:7 libsss_nss_idmap to version 0:1.16.4-21.el7 or higher.
This issue was patched in RHSA-2019:2177.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libsss_nss_idmap package and not the libsss_nss_idmap package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
A flaw was found in sssd Group Policy Objects implementation. When the GPO is not readable by SSSD due to a too strict permission settings on the server side, SSSD will allow all authenticated users to login instead of denying access.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16838
- https://access.redhat.com/security/cve/CVE-2018-16838
- https://access.redhat.com/errata/RHSA-2019:2177
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00042.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00051.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1640820
- https://lists.debian.org/debian-lts-announce/2023/05/msg00028.html