CVE-2016-2114

Severity

43%

Complexity

86%

Confidentiality

48%

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.

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 3.0 Base Score 5.9. CVSS Attack Vector: network. CVSS Attack Complexity: high. CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N).

CVSS 2.0 Base Score 4.3. CVSS Attack Vector: network. CVSS Attack Complexity: medium. CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N).

Overview

First reported 8 years ago

2016-04-25 00:59:00

Last updated 8 years ago

2016-12-31 02:59:00

Affected Software

Samba 4.0.0

4.0.0

Samba 4.0.1

4.0.1

Samba 4.0.2

4.0.2

Samba 4.0.3

4.0.3

Samba 4.0.4

4.0.4

Samba 4.0.5

4.0.5

Samba 4.0.6

4.0.6

Samba 4.0.7

4.0.7

Samba 4.0.8

4.0.8

Samba 4.0.9

4.0.9

Samba 4.0.10

4.0.10

Samba 4.0.11

4.0.11

Samba 4.0.12

4.0.12

Samba 4.0.13

4.0.13

Samba 4.0.14

4.0.14

Samba 4.0.15

4.0.15

Samba 4.0.16

4.0.16

Samba 4.0.17

4.0.17

Samba 4.0.18

4.0.18

Samba 4.0.19

4.0.19

Samba 4.0.20

4.0.20

Samba 4.0.21

4.0.21

Samba 4.0.22

4.0.22

Samba 4.0.23

4.0.23

Samba 4.0.24

4.0.24

Samba 4.0.25

4.0.25

Samba 4.0.26

4.0.26

Samba 4.1.0

4.1.0

Samba 4.1.1

4.1.1

Samba 4.1.2

4.1.2

Samba 4.1.3

4.1.3

Samba 4.1.4

4.1.4

Samba 4.1.5

4.1.5

Samba 4.1.6

4.1.6

Samba 4.1.7

4.1.7

Samba 4.1.8

4.1.8

Samba 4.1.9

4.1.9

Samba 4.1.10

4.1.10

Samba 4.1.11

4.1.11

Samba 4.1.12

4.1.12

Samba 4.1.13

4.1.13

Samba 4.1.14

4.1.14

Samba 4.1.15

4.1.15

Samba 4.1.16

4.1.16

Samba 4.1.17

4.1.17

Samba 4.1.18

4.1.18

Samba 4.1.19

4.1.19

Samba 4.1.20

4.1.20

Samba 4.1.21

4.1.21

Samba 4.1.22

4.1.22

Samba 4.1.23

4.1.23

Samba 4.2.0 release candidate 1

4.2.0

Samba 4.2.0 release candidate 2

4.2.0

Samba 4.2.0 release candidate 3

4.2.0

Samba 4.2.0 release candidate 4

4.2.0

Samba 4.2.1

4.2.1

Samba 4.2.2

4.2.2

Samba 4.2.3

4.2.3

Samba 4.2.4

4.2.4

Samba 4.2.5

4.2.5

Samba 4.2.6

4.2.6

Samba 4.2.7

4.2.7

Samba 4.2.8

4.2.8

Samba 4.2.9

4.2.9

Samba 4.3.0

4.3.0

Samba 4.3.1

4.3.1

Samba 4.3.2

4.3.2

Samba 4.3.3

4.3.3

Samba 4.3.4

4.3.4

Samba 4.3.5

4.3.5

Samba 4.3.6

4.3.6

Samba 4.4.0

4.4.0

Canonical Ubuntu Linux 14.04 LTS (Long-Term Support)

14.04

Canonical Ubuntu Linux 15.10

15.10

Canonical Ubuntu Linux 16.04 LTS (Long-Term Support)

16.04

References

http://badlock.org/

FEDORA-2016-be53260726

FEDORA-2016-48b3761baa

FEDORA-2016-383fce04e2

openSUSE-SU-2016:1106

openSUSE-SU-2016:1107

RHSA-2016:0612

RHSA-2016:0614

RHSA-2016:0618

RHSA-2016:0620

DSA-3548

http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html

86011

1035533

SSA:2016-106-02

USN-2950-1

USN-2950-2

USN-2950-3

USN-2950-4

USN-2950-5

https://bto.bluecoat.com/security-advisory/sa122

GLSA-201612-47

https://www.samba.org/samba/history/samba-4.2.10.html

https://www.samba.org/samba/latest_news.html#4.4.2

https://www.samba.org/samba/security/CVE-2016-2114.html

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