Samba SMB Client Spoofing Vulnerability (CVE-2016-2115)

Samba SMB Client Spoofing Vulnerability (CVE-2016-2115)
Samba SMB Client Spoofing Vulnerability (CVE-2016-2115)

Release date:
Updated on:

Affected Systems:

Samba Samba 4.x-4.2.11
Samba Samba 4.4.x-4.4.2
Samba Samba 4.3.x-4.3.8
Samba Samba 3.x

Description:

CVE (CAN) ID: CVE-2016-2115

Samba is a free software that implements the SMB protocol on Linux and UNIX systems. It consists of servers and client programs.

Samba 3.x, 4. x-4.2.11, 4.3.x-4.3.8, 4.4.x-4.4.2 versions do not require SMB signatures to be used in DCERPC sessions on ncacn_np. By modifying the data streams from the client to the server, man-in-the-middle attackers can fool the SMB client.

<* Source: Stefan Metzmacher
　

Link: https://www.samba.org/samba/security/CVE-2016-2115.html
*>

Suggestion:

Vendor patch:

Samba
-----
Samba has released a Security Bulletin (CVE-2016-2115) and patches for this:
CVE-2016-2115: SMB client connections for IPC traffic are not integrity protected
Link: https://www.samba.org/samba/security/CVE-2016-2115.html

Patch download: https://www.samba.org/samba/security/

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