CVE-2018-5730

LOW

MIT krb5 1.6+ - Privilege Escalation

Title source: llm

Description

MIT krb5 1.6 or later allows an authenticated kadmin with permission to add principals to an LDAP Kerberos database to circumvent a DN containership check by supplying both a "linkdn" and "containerdn" database argument, or by supplying a DN string which is a left extension of a container DN string but is not hierarchically within the container DN.

References (10)

[Broken Link, Third Party Advisory, VDB Entry] http://www.securitytracker.com/id/1042071

[Third Party Advisory] https://access.redhat.com/errata/RHBA-2019:0327

[Third Party Advisory] https://access.redhat.com/errata/RHSA-2018:3071

[Third Party Advisory] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=891869

[Issue Tracking, Patch, Third Party Advisory] https://bugzilla.redhat.com/show_bug.cgi?id=1551082

[Patch, Third Party Advisory] https://github.com/krb5/krb5/commit/e1caf6fb74981da62039846931ebdffed71309d1

View Patch ZIP pw:eip

[Mailing List, Third Party Advisory] https://lists.debian.org/debian-lts-announce/2019/01/msg00020.html

[Mailing List, Third Party Advisory] https://lists.debian.org/debian-lts-announce/2021/09/msg00019.html

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GK5T6JPMBHBPKS7HNGHYUUF4KKRMNSNU/

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OIFUL3CPM4S5TOXTTOCQ3CUZN6XCXUTR/

Scores

CVSS v3 3.8

EPSS 0.0043

EPSS Percentile 61.8%

Attack Vector NETWORK

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

Classification

CWE

CWE-90

Status published

Affected Products (8)

mit/kerberos_5 < 5-1.21.2

fedoraproject/fedora

fedoraproject/fedora

debian/debian_linux

debian/debian_linux

redhat/enterprise_linux_desktop

redhat/enterprise_linux_server

redhat/enterprise_linux_workstation

Timeline

Published Mar 06, 2018

Tracked Since Feb 18, 2026