Medium severity · published Apr 25, 2016
CVE-2016-2114
The SMB1 protocol implementation in Samba 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 does not recognize the "server signing = mandatory" setting, which allows…
5.9
CVSS
2.7%
EPSS
No
On KEV
Description
The SMB1 protocol implementation in Samba 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 does not recognize the "server signing = mandatory" setting, which allows man-in-the-middle attackers to spoof SMB servers by modifying the client-server data stream.
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.7% · higher than 86% 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; 4.0.1; 4.0.2; 4.0.3; 4.0.4; 4.0.5; +34 more · source: NVD
UL
Ubuntu Linux · Canonical
14.04; 15.10; 16.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-2114
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-2114
badlock.org
http://badlock.org/
lists.fedoraproject.org
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182185.html
lists.fedoraproject.org
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182272.html
lists.fedoraproject.org
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182288.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.html
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