An update for ntp is now available for Red Hat Enterprise Linux 6.7 Extended Update Support.
Red Hat Product Security has rated this update as having a security impact of Low. 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 Network Time Protocol (NTP) is used to synchronize a computer’s time with another referenced time source. These packages include the ntpd service which continuously adjusts system time and utilities used to query and configure the ntpd service.
Security Fix(es) :
For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2018:3853. The text
# itself is copyright (C) Red Hat, Inc.
#
include("compat.inc");
if (description)
{
script_id(119802);
script_version("1.5");
script_cvs_date("Date: 2019/10/24 15:35:46");
script_cve_id("CVE-2018-12327");
script_xref(name:"RHSA", value:"2018:3853");
script_name(english:"RHEL 6 : ntp (RHSA-2018:3853)");
script_summary(english:"Checks the rpm output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:"The remote Red Hat host is missing one or more security updates."
);
script_set_attribute(
attribute:"description",
value:
"An update for ntp is now available for Red Hat Enterprise Linux 6.7
Extended Update Support.
Red Hat Product Security has rated this update as having a security
impact of Low. 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 Network Time Protocol (NTP) is used to synchronize a computer's
time with another referenced time source. These packages include the
ntpd service which continuously adjusts system time and utilities used
to query and configure the ntpd service.
Security Fix(es) :
* ntp: Stack-based buffer overflow in ntpq and ntpdc allows denial of
service or code execution (CVE-2018-12327)
For more details about the security issue(s), including the impact, a
CVSS score, and other related information, refer to the CVE page(s)
listed in the References section."
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/errata/RHSA-2018:3853"
);
script_set_attribute(
attribute:"see_also",
value:"https://access.redhat.com/security/cve/cve-2018-12327"
);
script_set_attribute(attribute:"solution", value:"Update the affected 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:POC/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:P/RL:O/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ntp");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ntp-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ntp-doc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ntp-perl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ntpdate");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6.7");
script_set_attribute(attribute:"vuln_publication_date", value:"2018/06/20");
script_set_attribute(attribute:"patch_publication_date", value:"2018/12/19");
script_set_attribute(attribute:"plugin_publication_date", value:"2018/12/20");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Red Hat Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^6\.7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 6.7", "Red Hat " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);
yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo))
{
rhsa = "RHSA-2018:3853";
yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
if (!empty_or_null(yum_report))
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : yum_report
);
exit(0);
}
else
{
audit_message = "affected by Red Hat security advisory " + rhsa;
audit(AUDIT_OS_NOT, audit_message);
}
}
else
{
flag = 0;
if (rpm_check(release:"RHEL6", sp:"7", cpu:"i686", reference:"ntp-4.2.6p5-5.el6_7.6")) flag++;
if (rpm_check(release:"RHEL6", sp:"7", cpu:"s390x", reference:"ntp-4.2.6p5-5.el6_7.6")) flag++;
if (rpm_check(release:"RHEL6", sp:"7", cpu:"x86_64", reference:"ntp-4.2.6p5-5.el6_7.6")) flag++;
if (rpm_check(release:"RHEL6", sp:"7", cpu:"i686", reference:"ntp-debuginfo-4.2.6p5-5.el6_7.6")) flag++;
if (rpm_check(release:"RHEL6", sp:"7", cpu:"s390x", reference:"ntp-debuginfo-4.2.6p5-5.el6_7.6")) flag++;
if (rpm_check(release:"RHEL6", sp:"7", cpu:"x86_64", reference:"ntp-debuginfo-4.2.6p5-5.el6_7.6")) flag++;
if (rpm_check(release:"RHEL6", sp:"7", reference:"ntp-doc-4.2.6p5-5.el6_7.6")) flag++;
if (rpm_check(release:"RHEL6", sp:"7", cpu:"i686", reference:"ntp-perl-4.2.6p5-5.el6_7.6")) flag++;
if (rpm_check(release:"RHEL6", sp:"7", cpu:"s390x", reference:"ntp-perl-4.2.6p5-5.el6_7.6")) flag++;
if (rpm_check(release:"RHEL6", sp:"7", cpu:"x86_64", reference:"ntp-perl-4.2.6p5-5.el6_7.6")) flag++;
if (rpm_check(release:"RHEL6", sp:"7", cpu:"i686", reference:"ntpdate-4.2.6p5-5.el6_7.6")) flag++;
if (rpm_check(release:"RHEL6", sp:"7", cpu:"s390x", reference:"ntpdate-4.2.6p5-5.el6_7.6")) flag++;
if (rpm_check(release:"RHEL6", sp:"7", cpu:"x86_64", reference:"ntpdate-4.2.6p5-5.el6_7.6")) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : rpm_report_get() + redhat_report_package_caveat()
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "ntp / ntp-debuginfo / ntp-doc / ntp-perl / ntpdate");
}
}
Vendor | Product | Version | CPE |
---|---|---|---|
redhat | enterprise_linux | ntp | p-cpe:/a:redhat:enterprise_linux:ntp |
redhat | enterprise_linux | ntp-debuginfo | p-cpe:/a:redhat:enterprise_linux:ntp-debuginfo |
redhat | enterprise_linux | ntp-doc | p-cpe:/a:redhat:enterprise_linux:ntp-doc |
redhat | enterprise_linux | ntp-perl | p-cpe:/a:redhat:enterprise_linux:ntp-perl |
redhat | enterprise_linux | ntpdate | p-cpe:/a:redhat:enterprise_linux:ntpdate |
redhat | enterprise_linux | 6.7 | cpe:/o:redhat:enterprise_linux:6.7 |