CVE-2016-2119

high

Description

libcli/smb/smbXcli_base.c in Samba 4.x before 4.2.14, 4.3.x before 4.3.11, and 4.4.x before 4.4.5 allows man-in-the-middle attackers to bypass a client-signing protection mechanism, and consequently spoof SMB2 and SMB3 servers, via the (1) SMB2_SESSION_FLAG_IS_GUEST or (2) SMB2_SESSION_FLAG_IS_NULL flag.

References

http://lists.opensuse.org/opensuse-updates/2016-07/msg00060.html

http://rhn.redhat.com/errata/RHSA-2016-1486.html

http://rhn.redhat.com/errata/RHSA-2016-1487.html

http://rhn.redhat.com/errata/RHSA-2016-1494.html

http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html

http://www.securityfocus.com/bid/91700

http://www.securitytracker.com/id/1036244

https://security.gentoo.org/glsa/201805-07

https://www.samba.org/samba/security/CVE-2016-2119.html

Details

Source: MITRE

Published: 2016-07-07

Updated: 2018-10-21

Type: CWE-284

Risk Information

CVSS v2

Base Score: 6.8

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 1.6

Severity: HIGH