CVE-2018-16860

A flaw was found in samba's Heimdal KDC implementation, versions 4.8.x up to, excluding 4.8.12, 4.9.x up to, excluding 4.9.8 and 4.10.x up to, excluding 4.10.3, when used in AD DC mode. A man in the middle attacker could use this flaw to intercept the request to the KDC and replace the user name (principal) in the request with any desired user name (principal) that exists in the KDC effectively obtaining a ticket for that principal.

• CWE-358
• CWE-358

• http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00026.html
• http://seclists.org/fulldisclosure/2019/Aug/11
• http://seclists.org/fulldisclosure/2019/Aug/13
• http://seclists.org/fulldisclosure/2019/Aug/14
• http://seclists.org/fulldisclosure/2019/Aug/15
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16860Issue Tracking, Third Party Advisory
• https://seclists.org/bugtraq/2019/Aug/21
• https://seclists.org/bugtraq/2019/Aug/22
• https://seclists.org/bugtraq/2019/Aug/23
• https://seclists.org/bugtraq/2019/Aug/25
• https://security.gentoo.org/glsa/202003-52
• https://support.apple.com/HT210346
• https://support.apple.com/HT210348
• https://support.apple.com/HT210351
• https://support.apple.com/HT210353
• https://www.samba.org/samba/security/CVE-2018-16860.htmlMitigation, Vendor Advisory
• https://www.synology.com/security/advisory/Synology_SA_19_23
• http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00026.html
• http://seclists.org/fulldisclosure/2019/Aug/11
• http://seclists.org/fulldisclosure/2019/Aug/13
• http://seclists.org/fulldisclosure/2019/Aug/14
• http://seclists.org/fulldisclosure/2019/Aug/15
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16860Issue Tracking, Third Party Advisory
• https://seclists.org/bugtraq/2019/Aug/21
• https://seclists.org/bugtraq/2019/Aug/22
• https://seclists.org/bugtraq/2019/Aug/23
• https://seclists.org/bugtraq/2019/Aug/25
• https://security.gentoo.org/glsa/202003-52
• https://support.apple.com/HT210346
• https://support.apple.com/HT210348
• https://support.apple.com/HT210351
• https://support.apple.com/HT210353
• https://www.samba.org/samba/security/CVE-2018-16860.htmlMitigation, Vendor Advisory
• https://www.synology.com/security/advisory/Synology_SA_19_23

Published

Jul 31, 2019

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2018-16855An issue has been found in PowerDNS Recursor before version …7.5
• CVE-2018-16856In a default Red Hat Openstack Platform Director installatio…5.5
• CVE-2018-16857Samba from version 4.9.0 and before version 4.9.3 that have …7.4
• CVE-2018-16858It was found that libreoffice before versions 6.0.7 and 6.1.…7.8
• CVE-2018-16859Execution of Ansible playbooks on Windows platforms with Pow…4.2
• CVE-2018-1686IBM Maximo Asset Management 7.6 through 7.6.3 is vulnerable …5.4
• CVE-2018-16861A cross-site scripting (XSS) flaw was found in the foreman c…7.6
• CVE-2018-16862A security flaw was found in the Linux kernel in a way that …5.3
• CVE-2018-16863It was found that RHSA-2018:2918 did not fully fix CVE-2018-…7.3
• CVE-2018-16864An allocation of memory without limits, that could result in…7.8
• CVE-2018-16865An allocation of memory without limits, that could result in…7.8
• CVE-2018-16866An out of bounds read was discovered in systemd-journald in …3.3