Issue: Unable to map the network drive via SDWAN from Windows 10 Clients

Symptoms: – Below Errors might be seen when Client at Branch office tries to map the Network Drives from Win 10 machines. Errors: – SMB3 acceleration is disabled/unsupported on the partner unit – Signed Session. Reason: Secure Connection to the peer unit does not exist. To configure secure partne...

February 13, 2018—KB4074597 (Security-only update)

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Microsoft Windows SMB2 and SMB3 Dialects Supported (remote check)

Nessus was able to obtain the set of SMB2 and SMB3 dialects running on the remote host by sending an authentication request to port 139 or 445. C Tenable Network Security, Inc. include"compat.inc"; if description scriptid106716; scriptversion"1.6";...

SUSE-SU-2017:2971-1 Security update for samba

This update for samba fixes several issues. These security issues were fixed: - CVE-2017-12163: Prevent client short SMB1 write from writing server memory to file, leaking information from the server to the client bsc1058624. - CVE-2017-12150: Always enforce smb signing when it is configured...

SUSE-SU-2017:2726-1 Security update for samba

This update for samba fixes several issues. These security issues were fixed: - CVE-2017-12163: Prevent client short SMB1 write from writing server memory to file, leaking information from the server to the client bsc1058624. - CVE-2017-12150: Always enforce smb signing when it is configured...

Amazon Linux AMI : samba (ALAS-2017-909)

Server memory information leak over SMB1 : An information leak flaw was found in the way SMB1 protocol was implemented by Samba. A malicious client could use this flaw to dump server memory contents to a file on the samba share or to a shared printer, though the exact area of server memory cannot...

openSUSE Security Update : samba (openSUSE-2017-1147)

This update for samba fixes several issues. These security issues were fixed : - CVE-2017-12163: Prevent client short SMB1 write from writing server memory to file, leaking information from the server to the client bsc1058624 - CVE-2017-12150: Always enforce smb signing when it is configured...

EulerOS 2.0 SP2 : samba (EulerOS-SA-2017-1234)

According to the versions of the samba packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - It was found that samba did not enforce 'SMB signing' when certain configuration options were enabled. A remote attacker could launch a...

SUSE-SU-2017:2650-1 Security update for samba

This update for samba fixes several issues. These security issues were fixed: - CVE-2017-12163: Prevent client short SMB1 write from writing server memory to file, leaking information from the server to the client bsc1058624. - CVE-2017-12150: Always enforce smb signing when it is configured...

Samba Server 'SMB3' MitM Vulnerability (CVE-2017-12151)

Samba is prone to a MitM vulnerability. SPDX-FileCopyrightText: 2017 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE = "cpe:/a:samba:samba"; ifdescription...

Moderate: Red Hat Security Advisory: samba security update

An update for samba is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

CVE-2017-12151

A flaw was found in the way samba client used encryption with the max protocol set as SMB3. The connection could lose the requirement for signing and encrypting to any DFS redirects, allowing an attacker to read or alter the contents of the connection via a man-in-the-middle attack. Mitigation Ke...

Security fix for the ALT Linux 8 package samba-DC version 4.6.8-alt1

Sept. 20, 2017 Evgeny Sinelnikov 4.6.8-alt1 - Update for autumn security release: + CVE-2017-12150 SMB1/2/3 connections may not require signing where they should + CVE-2017-12151 SMB3 connections don't keep encryption across DFS redirects + CVE-2017-12163 Server memory information leak over SMB1...

CVE-2017-12151

A flaw was found in the way samba client before samba 4.4.16, samba 4.5.14 and samba 4.6.8 used encryption with the max protocol set as SMB3. The connection could lose the requirement for signing and encrypting to any DFS redirects, allowing an attacker to read or alter the contents of the...

SMB3 connections don't keep encryption across DFS redirects

Description Client command line tools like 'smbclient' as well as applications using 'libsmbclient' library have support for requiring encryption. This is activated by the '-e|--encrypt' command line option or the smbcsetOptionSmbEncryptionLevel library call. By default, only SMB1 is used in orde...

Security fix for the ALT Linux 10 package samba version 4.6.8-alt1.S1

Sept. 20, 2017 Evgeny Sinelnikov 4.6.8-alt1.S1 - Update for autumn security release: + CVE-2017-12150 SMB1/2/3 connections may not require signing where they should + CVE-2017-12151 SMB3 connections don't keep encryption across DFS redirects + CVE-2017-12163 Server memory information leak over SM...

UPDATE: Nmap 7.60 Now Available!

PenTestIT RSS Feed About a month and half ago, Nmap 7.50 was released. Today, a few minutes ago - Nmap 7.60 was made available with SSH support, improved SMB2/SMB3 support by Paulino Calderon @calderpwn, addition of 14 NSE scripts and a new Npcap version. Nmap is now the default tool to discover...

Introducing RubySMB: The Protocol Library Nobody Else Wanted To Write

The Server Message Block SMB protocol family is arguably one of the most important network protocols to be conversant in as a security professional. It carries the capability for File and Print Sharing, remote process execution, and an entire system of Named Pipes that serve as access points to a...

Samba 'libcli/smb/smbXcli_base.c' Man In The Middle (MIMA) Vulnerability

Samba is prone to a man-in-the-middle MITM vulnerability. SPDX-FileCopyrightText: 2016 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE = "cpe:/a:samba:samba";...

Design/Logic Flaw

libcli/smb/smbXclibase.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 SMB2SESSIONFLAGISGUEST or 2 SMB2SESSIONFLAGISNULL flag...