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CentOS 7 : authconfig (CESA-2017:2285)

medium Nessus Plugin ID 102758

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Synopsis

The remote CentOS host is missing one or more security updates.

Description

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.

Solution

Update the affected authconfig packages.

See Also

http://www.nessus.org/u?3f545fe4

Plugin Details

Severity: Medium

ID: 102758

File Name: centos_RHSA-2017-2285.nasl

Version: 3.8

Type: local

Agent: unix

Published: 8/25/2017

Updated: 1/4/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.4

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

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

CVSS Score Source: CVE-2017-7488

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.8

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:centos:centos:7, p-cpe:/a:centos:centos:authconfig, p-cpe:/a:centos:centos:authconfig-gtk

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/23/2017

Vulnerability Publication Date: 5/16/2017

Reference Information

CVE: CVE-2017-7488

RHSA: 2017:2285