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CVE-2016-2118

Good to know:

Date: April 12, 2016

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."

Language: C

Severity Score

7.5

Related Resources (50)

Url: http://www.debian.org/security/2016/dsa-3548

Url: http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182272.html

Url: https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05162399

Url: http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00042.html

Url: http://www.ubuntu.com/usn/USN-2950-5

Url: http://www.ubuntu.com/usn/USN-2950-4

Url: http://www.ubuntu.com/usn/USN-2950-3

Url: https://access.redhat.com/security/vulnerabilities/badlock

Url: http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00020.html

Url: http://www.ubuntu.com/usn/USN-2950-2

Url: http://www.ubuntu.com/usn/USN-2950-1

Url: http://badlock.org/

Url: http://rhn.redhat.com/errata/RHSA-2016-0623.html

Url: http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.html

Url: https://nvd.nist.gov/vuln/detail/CVE-2016-2118

Url: http://rhn.redhat.com/errata/RHSA-2016-0619.html

Url: http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182288.html

Url: https://access.redhat.com/security/cve/CVE-2016-2118

Url: http://rhn.redhat.com/errata/RHSA-2016-0624.html

Url: http://rhn.redhat.com/errata/RHSA-2016-0621.html

Url: http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.html

Url: https://kb.netapp.com/support/s/article/ka51A0000008SXzQAM/smb-vulnerabilities-in-multiple-netapp-products

Url: http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.458012

Url: https://www.samba.org/samba/security/CVE-2016-2118.html

Url: http://rhn.redhat.com/errata/RHSA-2016-0613.html

Url: http://rhn.redhat.com/errata/RHSA-2016-0612.html

Url: http://rhn.redhat.com/errata/RHSA-2016-0620.html

Url: https://help.ecostruxureit.com/display/public/UADCO8x/StruxureWare+Data+Center+Operation+Software+Vulnerability+Fixes

Url: http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00023.html

Url: https://www.samba.org/samba/latest_news.html#4.4.2

Url: http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00022.html

Url: http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html

Url: https://www.samba.org/samba/history/samba-4.2.10.html

Url: https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05166182

Url: http://rhn.redhat.com/errata/RHSA-2016-0618.html

Url: http://www.securityfocus.com/bid/86002

Url: http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00021.html

Url: http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182185.html

Url: http://rhn.redhat.com/errata/RHSA-2016-0611.html

Url: http://rhn.redhat.com/errata/RHSA-2016-0625.html

Url: https://security-tracker.debian.org/tracker/CVE-2016-2118

Url: http://rhn.redhat.com/errata/RHSA-2016-0614.html

Url: https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40196

Url: https://bto.bluecoat.com/security-advisory/sa122

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2016-2118

Url: http://www.securitytracker.com/id/1035533

Url: https://www.kb.cert.org/vuls/id/813296

Url: https://security.gentoo.org/glsa/201612-47

Url: http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00024.html

Url: https://www.mend.io/vulnerability-database/CVE-2016-2118

Severity Score

7.5

Weakness Type (CWE)

Security Features

CWE-254

Top Fix

Upgrade Version

Upgrade to version 4.2.11,4.3.8,4.4.2

CVSS v3.1

Base Score:	7.5
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	HIGH
Privileges Required (PR):	NONE
User Interaction (UI):	REQUIRED
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	HIGH
Availability (A):	HIGH

CVSS v2

Base Score:	6.8
Access Vector (AV):	NETWORK
Access Complexity (AC):	MEDIUM
Authentication (AU):	NONE
Confidentiality (C):	PARTIAL
Integrity (I):	PARTIAL
Availability (A):	PARTIAL
Additional information:

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