CentOS 7 : freeradius (CESA-2017:1581)

2017-06-30T00:00:00
ID CENTOS_RHSA-2017-1581.NASL
Type nessus
Reporter Tenable
Modified 2018-07-02T00:00:00

Description

An update for freeradius is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. 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.

FreeRADIUS is a high-performance and highly configurable free Remote Authentication Dial In User Service (RADIUS) server, designed to allow centralized authentication and authorization for a network.

Security Fix(es) :

  • An authentication bypass flaw was found in the way the EAP module in FreeRADIUS handled TLS session resumption. A remote unauthenticated attacker could potentially use this flaw to bypass the inner authentication check in FreeRADIUS by resuming an older unauthenticated TLS session. (CVE-2017-9148)

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2017:1581 and 
# CentOS Errata and Security Advisory 2017:1581 respectively.
#

include("compat.inc");

if (description)
{
  script_id(101119);
  script_version("3.5");
  script_cvs_date("Date: 2018/07/02 18:48:54");

  script_cve_id("CVE-2017-9148");
  script_xref(name:"RHSA", value:"2017:1581");

  script_name(english:"CentOS 7 : freeradius (CESA-2017:1581)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote CentOS host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An update for freeradius is now available for Red Hat Enterprise Linux
7.

Red Hat Product Security has rated this update as having a security
impact of Important. 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.

FreeRADIUS is a high-performance and highly configurable free Remote
Authentication Dial In User Service (RADIUS) server, designed to allow
centralized authentication and authorization for a network.

Security Fix(es) :

* An authentication bypass flaw was found in the way the EAP module in
FreeRADIUS handled TLS session resumption. A remote unauthenticated
attacker could potentially use this flaw to bypass the inner
authentication check in FreeRADIUS by resuming an older
unauthenticated TLS session. (CVE-2017-9148)"
  );
  # http://lists.centos.org/pipermail/centos-announce/2017-June/022487.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?c6ab45c8"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected freeradius packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:freeradius");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:freeradius-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:freeradius-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:freeradius-krb5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:freeradius-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:freeradius-mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:freeradius-perl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:freeradius-postgresql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:freeradius-python");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:freeradius-sqlite");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:freeradius-unixODBC");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:freeradius-utils");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:7");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/06/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/06/30");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2018 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"CentOS Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/CentOS/release")) audit(AUDIT_OS_NOT, "CentOS");
if (!get_kb_item("Host/CentOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "CentOS", cpu);


flag = 0;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"freeradius-3.0.4-8.el7_3")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"freeradius-devel-3.0.4-8.el7_3")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"freeradius-doc-3.0.4-8.el7_3")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"freeradius-krb5-3.0.4-8.el7_3")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"freeradius-ldap-3.0.4-8.el7_3")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"freeradius-mysql-3.0.4-8.el7_3")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"freeradius-perl-3.0.4-8.el7_3")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"freeradius-postgresql-3.0.4-8.el7_3")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"freeradius-python-3.0.4-8.el7_3")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"freeradius-sqlite-3.0.4-8.el7_3")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"freeradius-unixODBC-3.0.4-8.el7_3")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"freeradius-utils-3.0.4-8.el7_3")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");