Detections
Analytics
RHEL 6 : samba4 (RHSA-2017:2791)
high Nessus Plugin ID 103408
Language:
Synopsis
The remote Red Hat host is missing one or more security updates for samba4.Description
The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2017:2791 advisory.Samba is an open-source implementation of the Server Message Block (SMB) or Common Internet File System (CIFS) protocol, which allows PC-compatible machines to share files, printers, and other information.
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)
* 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)
Red Hat would like to thank the Samba project for reporting CVE-2017-12150 and Yihan Lian and Zhibin Hu (Qihoo 360 GearTeam), Stefan Metzmacher (SerNet), and Jeremy Allison (Google) for reporting CVE-2017-12163. Upstream acknowledges Stefan Metzmacher (SerNet) as the original reporter of CVE-2017-12150.
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the RHEL samba4 package based on the guidance in RHSA-2017:2791.See Also
http://www.nessus.org/u?11b078e7
https://access.redhat.com/errata/RHSA-2017:2791
https://access.redhat.com/security/updates/classification/#moderate
Plugin Details
Severity: High
ID: 103408
File Name: redhat-RHSA-2017-2791.nasl
Version: 3.13
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 9/22/2017
Updated: 4/15/2025
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.2
Vendor
Vendor Severity: Moderate
CVSS v2
Risk Factor: Medium
Base Score: 5.8
Temporal Score: 4.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N
CVSS Score Source: CVE-2017-12150
CVSS v3
Risk Factor: High
Base Score: 7.4
Temporal Score: 6.4
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:samba4-dc-libs, p-cpe:/a:redhat:enterprise_linux:samba4-python, p-cpe:/a:redhat:enterprise_linux:samba4, p-cpe:/a:redhat:enterprise_linux:samba4-winbind-clients, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:redhat:enterprise_linux:samba4-winbind-krb5-locator, p-cpe:/a:redhat:enterprise_linux:samba4-devel, p-cpe:/a:redhat:enterprise_linux:samba4-dc, p-cpe:/a:redhat:enterprise_linux:samba4-client, p-cpe:/a:redhat:enterprise_linux:samba4-libs, p-cpe:/a:redhat:enterprise_linux:samba4-pidl, p-cpe:/a:redhat:enterprise_linux:samba4-winbind, p-cpe:/a:redhat:enterprise_linux:samba4-test, p-cpe:/a:redhat:enterprise_linux:samba4-common
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Ease: No known exploits are available
Patch Publication Date: 9/21/2017
Vulnerability Publication Date: 7/26/2018
Reference Information
CVE: CVE-2017-12150, CVE-2017-12163