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Status published
High
CVE-2016-2118
The MS-SAMR and MS-LSAD protocol implementations in Samba 3.x and...
Vulnerability Description
The MS-SAMR and MS-LSAD protocol implementations in Samba 3.x and 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 mishandle DCERPC connections, which allows man-in-the-middle attackers to perform protocol-downgrade attacks and impersonate users by modifying the client-server data stream, aka "BADLOCK."
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.458012
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00020.html
- http://rhn.redhat.com/errata/RHSA-2016-0612.html
- http://www.ubuntu.com/usn/USN-2950-1
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05166182
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00024.html
- http://rhn.redhat.com/errata/RHSA-2016-0613.html
- http://badlock.org/
- http://rhn.redhat.com/errata/RHSA-2016-0621.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00042.html
- http://www.ubuntu.com/usn/USN-2950-5
- https://www.samba.org/samba/history/samba-4.2.10.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182185.html
- http://rhn.redhat.com/errata/RHSA-2016-0624.html
- http://rhn.redhat.com/errata/RHSA-2016-0618.html
- http://www.securityfocus.com/bid/86002
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00022.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00021.html
- https://www.samba.org/samba/security/CVE-2016-2118.html
- https://www.samba.org/samba/latest_news.html#4.4.2
- http://www.securitytracker.com/id/1035533
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182272.html
- https://www.kb.cert.org/vuls/id/813296
- http://rhn.redhat.com/errata/RHSA-2016-0614.html
- https://help.ecostruxureit.com/display/public/UADCO8x/StruxureWare+Data+Center+Operation+Software+Vulnerability+Fixes
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00023.html
- http://rhn.redhat.com/errata/RHSA-2016-0620.html
- http://rhn.redhat.com/errata/RHSA-2016-0611.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.html
- https://bto.bluecoat.com/security-advisory/sa122
- http://www.ubuntu.com/usn/USN-2950-3
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182288.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.html
- http://rhn.redhat.com/errata/RHSA-2016-0619.html
- https://security.gentoo.org/glsa/201612-47
- http://www.debian.org/security/2016/dsa-3548
- http://rhn.redhat.com/errata/RHSA-2016-0623.html
- http://www.ubuntu.com/usn/USN-2950-2
- https://access.redhat.com/security/vulnerabilities/badlock
- http://rhn.redhat.com/errata/RHSA-2016-0625.html
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05162399
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40196
- http://www.ubuntu.com/usn/USN-2950-4
- https://kb.netapp.com/support/s/article/ka51A0000008SXzQAM/smb-vulnerabilities-in-multiple-netapp-products
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Affected Vendor
samba
View all reports →Affected Software
samba, ubuntu linux, debian linux
Vulnerable Versions:
3.6.0, 4.3.0, 4.4.0, 12.04, 14.04, 15.10, 16.04, 7.0, 8.0
Timeline
Official Publish:
April 12th, 2016
Last Modified:
August 5th, 2024
Added to House:
July 20th, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.