CVE-2018-5730 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...
LowCVSS 3.8
EPSS 2.2%
- Published
- Updated
- Exploit status
- No public exploit known
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.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| debian/krb5(Debian:12) | < 1.16.1-1 | 1.16.1-1 |
| debian/krb5(Debian:13) | < 1.16.1-1 | 1.16.1-1 |
| debian/krb5(Debian:14) | < 1.16.1-1 | 1.16.1-1 |
| mit kerberos 5 | >= 5-1.6, < 5-1.21.2 | 5-1.21.2 |
| fedoraproject fedora | = 26 | No fix listed |
| fedoraproject fedora | = 27 | No fix listed |
| debian linux | = 8.0 | No fix listed |
| debian linux | = 9.0 | No fix listed |
| redhat enterprise linux desktop | = 7.0 | No fix listed |
| redhat enterprise linux server | = 7.0 | No fix listed |
| redhat enterprise linux workstation | = 7.0 | No fix listed |
References
- Debian Security Tracker CVE-2018-5730 vendor-advisory
- 1042071 broken-link third-party-advisory vdb-entry
- RHBA-2019:0327 third-party-advisory vendor-advisory
- RHSA-2018:3071 third-party-advisory vendor-advisory
- bugs.debian.org third-party-advisory
- bugzilla.redhat.com issue-tracking patch third-party-advisory
- github.com patch third-party-advisory
- [debian-lts-announce] 20190125 [SECURITY] [DLA 1643-1] krb5 security update mailing-list third-party-advisory
- [debian-lts-announce] 20210930 [SECURITY] [DLA 2771-1] krb5 security update mailing-list third-party-advisory
- FEDORA-2018-391a1f3e61 mailing-list third-party-advisory vendor-advisory
- FEDORA-2018-f97cb1c9b0 mailing-list third-party-advisory vendor-advisory
- bugs.debian.org issue-tracking