Oracle Linux 7 : authconfig (ELSA-2017-2285)

This script is Copyright (C) 2017 Tenable Network Security, Inc.


Synopsis :

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

Description :

From Red Hat Security Advisory 2017:2285 :

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.

See also :

https://oss.oracle.com/pipermail/el-errata/2017-August/007094.html

Solution :

Update the affected authconfig packages.

Risk factor :

Medium / CVSS Base Score : 4.0
(CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:N)
CVSS Temporal Score : 3.3
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: Oracle Linux Local Security Checks

Nessus Plugin ID: 102302 ()

Bugtraq ID:

CVE ID: CVE-2017-7488

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