Home/CVE/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-midd
CVE

CVE-2016-2119

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-midd

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.

HIGH · CVSS 7.5 EPSS 0.01142
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-94Improper Control of Generation of Code ('Code Injection')
▤

Affected Products & Versions

3
samba>= 4.0.0 and < 4.2.14
samba>= 4.3.0 and < 4.3.11
samba>= 4.4.0 and < 4.4.5
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD07 Jul 2016 · 03:59 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

7
suse-csafopenSUSE-SU-2024:10069-1
suse-csafSUSE-SU-2016:2570-1
usnUSN-3092-1
suse-csafSUSE-SU-2016:2306-1
rhsaRHSA-2016:1486Moderate
🔗

References & Sources

9
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-updates/2016-07/msg00060.htmlMailing ListThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-1486.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-1487.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-1494.htmlThird Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.htmlThird Party Advisory
http://www.securityfocus.com/bid/91700Third Party AdvisoryVDB Entry
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