CVE-2016-2114
MEDIUM severity · CVSS 5.9 · CWE-254
5.9CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactHigh
Availability impactNone
Exploit probability (EPSS)3%
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://badlock.org/
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182185.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182272.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182288.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.html
- http://rhn.redhat.com/errata/RHSA-2016-0612.html
- http://rhn.redhat.com/errata/RHSA-2016-0614.html