CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
98.2%
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 out-of-bounds write flaw was found in the way FreeRADIUS server handled certain attributes in request packets. A remote attacker could use this flaw to crash the FreeRADIUS server or to execute arbitrary code in the context of the FreeRADIUS server process by sending a specially crafted request packet. (CVE-2017-10984)
An out-of-bounds read and write flaw was found in the way FreeRADIUS server handled RADIUS packets. A remote attacker could use this flaw to crash the FreeRADIUS server by sending a specially crafted RADIUS packet. (CVE-2017-10978)
An out-of-bounds read flaw was found in the way FreeRADIUS server handled decoding of DHCP packets. A remote attacker could use this flaw to crash the FreeRADIUS server by sending a specially crafted DHCP request. (CVE-2017-10983)
A denial of service flaw was found in the way FreeRADIUS server handled certain attributes in request packets. A remote attacker could use this flaw to cause the FreeRADIUS server to enter an infinite loop, consume increasing amounts of memory resources, and ultimately crash by sending a specially crafted request packet. (CVE-2017-10985)
Multiple out-of-bounds read flaws were found in the way FreeRADIUS server handled decoding of DHCP packets. A remote attacker could use these flaws to crash the FreeRADIUS server by sending a specially crafted DHCP request. (CVE-2017-10986, CVE-2017-10987)
Red Hat would like to thank the FreeRADIUS project for reporting these issues. Upstream acknowledges Guido Vranken as the original reporter of these issues.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2017:2389 and
# CentOS Errata and Security Advisory 2017:2389 respectively.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(102762);
script_version("3.7");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");
script_cve_id("CVE-2017-10978", "CVE-2017-10983", "CVE-2017-10984", "CVE-2017-10985", "CVE-2017-10986", "CVE-2017-10987");
script_xref(name:"RHSA", value:"2017:2389");
script_name(english:"CentOS 7 : freeradius (CESA-2017:2389)");
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 out-of-bounds write flaw was found in the way FreeRADIUS server
handled certain attributes in request packets. A remote attacker could
use this flaw to crash the FreeRADIUS server or to execute arbitrary
code in the context of the FreeRADIUS server process by sending a
specially crafted request packet. (CVE-2017-10984)
* An out-of-bounds read and write flaw was found in the way FreeRADIUS
server handled RADIUS packets. A remote attacker could use this flaw
to crash the FreeRADIUS server by sending a specially crafted RADIUS
packet. (CVE-2017-10978)
* An out-of-bounds read flaw was found in the way FreeRADIUS server
handled decoding of DHCP packets. A remote attacker could use this
flaw to crash the FreeRADIUS server by sending a specially crafted
DHCP request. (CVE-2017-10983)
* A denial of service flaw was found in the way FreeRADIUS server
handled certain attributes in request packets. A remote attacker could
use this flaw to cause the FreeRADIUS server to enter an infinite
loop, consume increasing amounts of memory resources, and ultimately
crash by sending a specially crafted request packet. (CVE-2017-10985)
* Multiple out-of-bounds read flaws were found in the way FreeRADIUS
server handled decoding of DHCP packets. A remote attacker could use
these flaws to crash the FreeRADIUS server by sending a specially
crafted DHCP request. (CVE-2017-10986, CVE-2017-10987)
Red Hat would like to thank the FreeRADIUS project for reporting these
issues. Upstream acknowledges Guido Vranken as the original reporter
of these issues."
);
# https://lists.centos.org/pipermail/centos-cr-announce/2017-August/004658.html
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?cf7485be"
);
script_set_attribute(
attribute:"solution",
value:"Update the affected freeradius packages."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
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:"cvss_score_source", value:"CVE-2017-10985");
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:"vuln_publication_date", value:"2017/07/17");
script_set_attribute(attribute:"patch_publication_date", value:"2017/08/24");
script_set_attribute(attribute:"plugin_publication_date", value:"2017/08/25");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2017-2021 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);
release = get_kb_item("Host/CentOS/release");
if (isnull(release) || "CentOS" >!< release) audit(AUDIT_OS_NOT, "CentOS");
os_ver = pregmatch(pattern: "CentOS(?: Linux)? release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "CentOS");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 7.x", "CentOS " + os_ver);
if (!get_kb_item("Host/CentOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "CentOS", cpu);
flag = 0;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"freeradius-3.0.13-8.el7_4")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"freeradius-devel-3.0.13-8.el7_4")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"freeradius-doc-3.0.13-8.el7_4")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"freeradius-krb5-3.0.13-8.el7_4")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"freeradius-ldap-3.0.13-8.el7_4")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"freeradius-mysql-3.0.13-8.el7_4")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"freeradius-perl-3.0.13-8.el7_4")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"freeradius-postgresql-3.0.13-8.el7_4")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"freeradius-python-3.0.13-8.el7_4")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"freeradius-sqlite-3.0.13-8.el7_4")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"freeradius-unixODBC-3.0.13-8.el7_4")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"freeradius-utils-3.0.13-8.el7_4")) flag++;
if (flag)
{
cr_plugin_caveat = '\n' +
'NOTE: The security advisory associated with this vulnerability has a\n' +
'fixed package version that may only be available in the continuous\n' +
'release (CR) repository for CentOS, until it is present in the next\n' +
'point release of CentOS.\n\n' +
'If an equal or higher package level does not exist in the baseline\n' +
'repository for your major version of CentOS, then updates from the CR\n' +
'repository will need to be applied in order to address the\n' +
'vulnerability.\n';
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : rpm_report_get() + cr_plugin_caveat
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "freeradius / freeradius-devel / freeradius-doc / freeradius-krb5 / etc");
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10978
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10983
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10984
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10985
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10986
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-10987
www.nessus.org/u?cf7485be
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
98.2%