RHEL 7 : authconfig (RHSA-2017:2285)

Medium Nessus Plugin ID 102154


The remote Red Hat host is missing one or more security updates.


An update for authconfig 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 link(s) in the References section.

The authconfig packages contain a command-line utility and a GUI application that can configure a workstation to be a client for certain network user information, authentication schemes, and other user information and authentication-related options.

Security Fix(es) :

* A flaw was found where authconfig could configure sssd in a way that treats existing and non-existing logins differently, leaking information on existence of a user. An attacker with physical or network access to the machine could enumerate users via a timing attack. (CVE-2017-7488)

This issue was discovered by Tomas Mraz (Red Hat) and Thorsten Scherf (Red Hat).

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.4 Release Notes linked from the References section.


Update the affected authconfig, authconfig-debuginfo and / or authconfig-gtk packages.

See Also




Plugin Details

Severity: Medium

ID: 102154

File Name: redhat-RHSA-2017-2285.nasl

Version: $Revision: 3.3 $

Type: local

Agent: unix

Published: 2017/08/03

Modified: 2018/01/25

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 4

Temporal Score: 3.3

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

Temporal Vector: CVSS2#E:F/RL:OF/RC:ND


Base Score: 4.3

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:authconfig, p-cpe:/a:redhat:enterprise_linux:authconfig-debuginfo, p-cpe:/a:redhat:enterprise_linux:authconfig-gtk, cpe:/o:redhat:enterprise_linux:7

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2017/08/01

Reference Information

CVE: CVE-2017-7488

OSVDB: 157313

RHSA: 2017:2285