Scientific Linux Security Update : samba on SL7.x x86_64 (20170921)

high Nessus Plugin ID 103411

Synopsis

The remote Scientific Linux host is missing one or more security updates.

Description

Security Fix(es) :

- It was found that samba did not enforce 'SMB signing' when certain configuration options were enabled. A remote attacker could launch a man- in-the-middle attack and retrieve information in plain-text. (CVE-2017-12150)

- 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. (CVE-2017-12151)

- 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 be controlled by the attacker. (CVE-2017-12163)

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?4de020a5

Plugin Details

Severity: High

ID: 103411

File Name: sl_20170921_samba_on_SL7_x.nasl

Version: 3.7

Type: local

Agent: unix

Published: 9/22/2017

Updated: 1/14/2021

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N

CVSS v3

Risk Factor: High

Base Score: 7.4

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Vulnerability Information

CPE: p-cpe:/a:fermilab:scientific_linux:libsmbclient, p-cpe:/a:fermilab:scientific_linux:libsmbclient-devel, p-cpe:/a:fermilab:scientific_linux:libwbclient, p-cpe:/a:fermilab:scientific_linux:libwbclient-devel, p-cpe:/a:fermilab:scientific_linux:samba, p-cpe:/a:fermilab:scientific_linux:samba-client, p-cpe:/a:fermilab:scientific_linux:samba-client-libs, p-cpe:/a:fermilab:scientific_linux:samba-common, p-cpe:/a:fermilab:scientific_linux:samba-common-libs, p-cpe:/a:fermilab:scientific_linux:samba-common-tools, p-cpe:/a:fermilab:scientific_linux:samba-dc, p-cpe:/a:fermilab:scientific_linux:samba-dc-libs, p-cpe:/a:fermilab:scientific_linux:samba-debuginfo, p-cpe:/a:fermilab:scientific_linux:samba-devel, p-cpe:/a:fermilab:scientific_linux:samba-krb5-printing, p-cpe:/a:fermilab:scientific_linux:samba-libs, p-cpe:/a:fermilab:scientific_linux:samba-pidl, p-cpe:/a:fermilab:scientific_linux:samba-python, p-cpe:/a:fermilab:scientific_linux:samba-test, p-cpe:/a:fermilab:scientific_linux:samba-test-libs, p-cpe:/a:fermilab:scientific_linux:samba-vfs-glusterfs, p-cpe:/a:fermilab:scientific_linux:samba-winbind, p-cpe:/a:fermilab:scientific_linux:samba-winbind-clients, p-cpe:/a:fermilab:scientific_linux:samba-winbind-krb5-locator, p-cpe:/a:fermilab:scientific_linux:samba-winbind-modules, x-cpe:/o:fermilab:scientific_linux

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Patch Publication Date: 9/21/2017

Vulnerability Publication Date: 7/26/2018

Reference Information

CVE: CVE-2017-12150, CVE-2017-12151, CVE-2017-12163