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High severity · published Jul 7, 2016
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-middle attackers to bypass a client-signing protection…
7.5
CVSS
3.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.1% · higher than 88% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SA
Samba · Samba
4.0.0 before 4.2.14; 4.3.0 before 4.3.11; 4.4.0 before 4.4.5 · source: NVD
Affected product
SA
Samba
Samba
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-2119
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-2119
Mailing List
http://lists.opensuse.org/opensuse-updates/2016-07/msg00060.html
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-1486.html
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-1487.html
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-1494.html
Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
Third Party Advisory
http://www.securityfocus.com/bid/91700
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