CVE-2018-16860
First published: Tue May 14 2019(Updated: )
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.
Credit: Isaac Boukris Andrew Bartlett the Samba TeamCatalyst Isaac Boukris Andrew Bartlett the Samba TeamCatalyst Isaac Boukris Andrew Bartlett the Samba TeamCatalyst Isaac Boukris Andrew Bartlett the Samba TeamCatalyst secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/heimdal | <=7.1.0+dfsg-13<=7.1.0+dfsg-13+deb9u2<=7.5.0+dfsg-2.1 | 7.5.0+dfsg-3 7.1.0+dfsg-13+deb9u3 |
| Samba Samba | >=4.8.0<4.8.12 | |
| Samba Samba | >=4.9.0<4.9.8 | |
| Samba Samba | >=4.10.0<4.10.3 | |
| Heimdal Project Heimdal | >=0.8<=7.5.0 | |
| Apple watchOS | <5.3 | 5.3 |
| Apple macOS Mojave | <10.14.6 | 10.14.6 |
| Apple High Sierra | ||
| Apple Sierra | ||
| Apple tvOS | <12.4 | 12.4 |
| Apple iOS | <12.4 | 12.4 |
| ubuntu/heimdal | <7.5.0+dfsg-1ubuntu0.1 | 7.5.0+dfsg-1ubuntu0.1 |
| ubuntu/heimdal | <1.6~ | 1.6~ |
| ubuntu/heimdal | <7.6<7.5.0+dfsg-3<7.1.0+dfsg-13+ | 7.6 7.5.0+dfsg-3 7.1.0+dfsg-13+ |
| ubuntu/heimdal | <1.7~ | 1.7~ |
| ubuntu/samba | <2:4.7.6+dfsg~ubuntu-0ubuntu2.10 | 2:4.7.6+dfsg~ubuntu-0ubuntu2.10 |
| ubuntu/samba | <2:4.8.4+dfsg-2ubuntu2.4 | 2:4.8.4+dfsg-2ubuntu2.4 |
| ubuntu/samba | <2:4.10.0+dfsg-0ubuntu2.1 | 2:4.10.0+dfsg-0ubuntu2.1 |
| ubuntu/samba | <2:4.10.0+dfsg-0ubuntu2.1 | 2:4.10.0+dfsg-0ubuntu2.1 |
| ubuntu/samba | <2:4.10.0+dfsg-0ubuntu2.1 | 2:4.10.0+dfsg-0ubuntu2.1 |
| ubuntu/samba | <2:4.10.0+dfsg-0ubuntu2.1 | 2:4.10.0+dfsg-0ubuntu2.1 |
| ubuntu/samba | <2:4.3.11+dfsg-0ubuntu0.14.04.20+ | 2:4.3.11+dfsg-0ubuntu0.14.04.20+ |
| ubuntu/samba | <2:4.3.11+dfsg-0ubuntu0.16.04.20 | 2:4.3.11+dfsg-0ubuntu0.16.04.20 |
| debian/heimdal | 7.5.0+dfsg-3 7.5.0+dfsg-3+deb10u2 7.7.0+dfsg-2+deb11u3 7.8.git20221117.28daf24+dfsg-2 7.8.git20221117.28daf24+dfsg-5 | |
| debian/samba | 2:4.9.5+dfsg-5+deb10u3 2:4.9.5+dfsg-5+deb10u5 2:4.13.13+dfsg-1~deb11u5 2:4.13.13+dfsg-1~deb11u6 2:4.17.12+dfsg-0+deb12u1 2:4.20.1+dfsg-1 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://security-tracker.debian.org/tracker/CVE-2018-16860
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16860
- https://github.com/heimdal/heimdal/commit/c6257cc2c842c0faaeb4ef34e33890ee88c4cbba
- https://github.com/heimdal/heimdal/issues
- https://www.samba.org/samba/security/CVE-2018-16860.html
- https://security-tracker.debian.org/tracker/CVE-2019-12098
- https://github.com/heimdal/heimdal/pull/555
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=928966
- 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-2018-16860
- 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.synology.com/security/advisory/Synology_SA_19_23
- https://launchpad.net/bugs/cve/CVE-2018-16860
- https://support.apple.com/en-us/HT210353 (Advisory)
- https://support.apple.com/en-us/HT210348 (Advisory)
- https://support.apple.com/en-us/HT210351 (Advisory)
- https://support.apple.com/en-us/HT210346 (Advisory)
- https://ubuntu.com/security/notices/USN-3976-1
- https://ubuntu.com/security/notices/USN-3976-2
- https://ubuntu.com/security/notices/USN-5675-1
- https://www.cve.org/CVERecord?id=CVE-2018-16860
- https://nvd.nist.gov/vuln/detail/CVE-2018-16860
- https://ubuntu.com/security/CVE-2018-16860
Parent vulnerabilities
(Appears in the following advisories)
Peer vulnerabilities
(Found alongside the following vulnerabilities)
- CVE-2019-9506
- CVE-2020-10135
- CVE-2019-8646
- CVE-2019-8647
- CVE-2019-8660
- CVE-2019-8624
- CVE-2019-8648
- CVE-2018-16860
- CVE-2019-8668
- CVE-2019-8633
- CVE-2019-13118
- CVE-2019-8659
- CVE-2019-8665
- CVE-2019-8662
- CVE-2019-8657
- CVE-2019-8682
- CVE-2019-8658
- CVE-2019-8669
- CVE-2019-8672
- CVE-2019-8676
- CVE-2019-8683
- CVE-2019-8684
- CVE-2019-8685
- CVE-2019-8688
- CVE-2019-8689
- CVE-2019-8693
- CVE-2019-8656
- CVE-2018-19860
- CVE-2019-8661
- CVE-2019-8675
- CVE-2019-8696
- CVE-2019-8539
- CVE-2019-8697
- CVE-2019-8663
- CVE-2019-8702
- CVE-2019-8695
- CVE-2019-8691
- CVE-2019-8692
- CVE-2019-8694
- CVE-2019-8670
- CVE-2019-8701
- CVE-2019-8667
- CVE-2019-8690
- CVE-2019-8649
- CVE-2019-8644
- CVE-2019-8666
- CVE-2019-8671
- CVE-2019-8673
- CVE-2019-8677
- CVE-2019-8678
- CVE-2019-8679
- CVE-2019-8680
- CVE-2019-8681
- CVE-2019-8686
- CVE-2019-8687
- CVE-2019-8698
- CVE-2019-8699
Frequently Asked Questions
What is the severity of CVE-2018-16860?
The severity of CVE-2018-16860 is high.
What is the affected software for CVE-2018-16860?
The affected software for CVE-2018-16860 is 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.
How does CVE-2018-16860 affect the system?
CVE-2018-16860 allows a man-in-the-middle attacker to intercept requests to the KDC and replace the user name.
How can I fix CVE-2018-16860?
To fix CVE-2018-16860, update to version 4.8.12 or later for 4.8.x, update to version 4.9.8 or later for 4.9.x, and update to version 4.10.3 or later for 4.10.x.
Where can I find more information about CVE-2018-16860?
More information about CVE-2018-16860 can be found at the following references: [CVE-2018-16860](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16860), [Samba Security](https://www.samba.org/samba/security/CVE-2018-16860.html), [Ubuntu Security Notices](https://ubuntu.com/security/notices/USN-3976-1).
- collector/debian-bugs
- alias/CVE-2018-16860
- collector/nvd-index
- agent/type
- agent/last-modified-date
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- collector/apple-support
- agent/software-canonical-lookup-request
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- agent/event
- agent/author
- agent/weakness
- agent/remedy
- agent/references
- agent/severity
- agent/tags
- agent/description
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- collector/usn-cve
- source/Ubuntu
- package-manager/debian
- vendor/samba
- canonical/samba samba
- version/samba samba/4.8.0
- version/samba samba/4.9.0
- version/samba samba/4.10.0
- vendor/heimdal project
- canonical/heimdal project heimdal
- version/heimdal project heimdal/0.8
- version/heimdal project heimdal/7.5.0
- vendor/apple
- canonical/apple watchos
- canonical/apple macos mojave
- canonical/apple high sierra
- canonical/apple sierra
- canonical/apple tvos
- canonical/apple ios
- package-manager/ubuntu