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nessusThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.REDHAT-RHSA-2019-3132.NASL
HistoryOct 17, 2019 - 12:00 a.m.

RHEL 7 / 8 : OpenShift Container Platform 4.1.20 openshift (RHSA-2019:3132)

2019-10-1700:00:00
This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
15

An update for openshift is now available for Red Hat OpenShift Container Platform 4.1.

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.

Red Hat OpenShift Container Platform is Red Hatโ€™s cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments.

This advisory contains the openshift RPM package for Red Hat OpenShift Container Platform 4.1.20.

Security Fix(es) :

  • kubernetes: YAML parsing vulnerable to โ€˜Billion Laughsโ€™ attack, allowing for remote denial of service (CVE-2019-11253)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, 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-2019:3132. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(129996);
  script_version("1.5");
  script_cvs_date("Date: 2019/12/19");

  script_cve_id("CVE-2019-11253");
  script_xref(name:"RHSA", value:"2019:3132");

  script_name(english:"RHEL 7 / 8 : OpenShift Container Platform 4.1.20 openshift (RHSA-2019:3132)");
  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 openshift is now available for Red Hat OpenShift
Container Platform 4.1.

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.

Red Hat OpenShift Container Platform is Red Hat's cloud computing
Kubernetes application platform solution designed for on-premise or
private cloud deployments.

This advisory contains the openshift RPM package for Red Hat OpenShift
Container Platform 4.1.20.

Security Fix(es) :

* kubernetes: YAML parsing vulnerable to 'Billion Laughs' attack,
allowing for remote denial of service (CVE-2019-11253)

For more details about the security issue(s), including the impact, a
CVSS score, acknowledgments, 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-2019:3132"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2019-11253"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Update the affected openshift-clients,
openshift-clients-redistributable and / or openshift-hyperkube
packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/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:N/I:N/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:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-clients");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-clients-redistributable");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-hyperkube");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:8");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/10/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/10/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/10/17");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 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:"^(7|8)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 7.x / 8.x", "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);
if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2019:3132";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      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:"RHEL7", cpu:"x86_64", reference:"openshift-clients-4.1.20-201910101746.git.0.a80aad5.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-clients-redistributable-4.1.20-201910101746.git.0.a80aad5.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-hyperkube-4.1.20-201910101746.git.0.a80aad5.el7")) flag++;

  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"openshift-clients-4.1.20-201910101746.git.0.a80aad5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"openshift-clients-redistributable-4.1.20-201910101746.git.0.a80aad5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"openshift-hyperkube-4.1.20-201910101746.git.0.a80aad5.el8")) flag++;

  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      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, "openshift-clients / openshift-clients-redistributable / etc");
  }
}