RHEL 7 : kubernetes (RHSA-2015:1945)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2015:1945. The text 
# itself is copyright (C) Red Hat, Inc.
#

include('compat.inc');

if (description)
{
  script_id(119364);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/07/17");

  script_cve_id("CVE-2015-5305");
  script_xref(name:"RHSA", value:"2015:1945");

  script_name(english:"RHEL 7 : kubernetes (RHSA-2015:1945)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"Updated kubernetes packages that fix one security issue are now
available for Red Hat OpenShift Enterprise 3.0.

Red Hat Product Security has rated this update as having Moderate
security impact. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available from the
CVE link in the references section.

Kubernetes allows orchestration and control of Docker containers as
used in OpenShift Enterprise 3.

Kubernetes fails to validate object name types before passing the data
to etcd. As the etcd service generates keys based on the object name
type this can lead to a directory path traversal. (CVE-2015-5305)

Red Hat would like to thank Jordan Liggitt for discovering and
reporting this issue.");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2015:1945");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/cve-2015-5305");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2015-5305");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/11/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/10/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/12/04");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift");
  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-master");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-node");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-sdn-ovs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:tuned-profiles-openshift-node");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Red Hat Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2018-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  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([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 7.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-2015:1945";
  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_exists(rpm:"openshift-3.0", release:"RHEL7") && rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-3.0.2.0-0.git.20.656dc3e.el7ose")) flag++;
  if (rpm_exists(rpm:"openshift-clients-3.0", release:"RHEL7") && rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-clients-3.0.2.0-0.git.20.656dc3e.el7ose")) flag++;
  if (rpm_exists(rpm:"openshift-master-3.0", release:"RHEL7") && rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-master-3.0.2.0-0.git.20.656dc3e.el7ose")) flag++;
  if (rpm_exists(rpm:"openshift-node-3.0", release:"RHEL7") && rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-node-3.0.2.0-0.git.20.656dc3e.el7ose")) flag++;
  if (rpm_exists(rpm:"openshift-sdn-ovs-3.0", release:"RHEL7") && rpm_check(release:"RHEL7", cpu:"x86_64", reference:"openshift-sdn-ovs-3.0.2.0-0.git.20.656dc3e.el7ose")) flag++;
  if (rpm_exists(rpm:"tuned-profiles-openshift-node-3.0", release:"RHEL7") && rpm_check(release:"RHEL7", cpu:"x86_64", reference:"tuned-profiles-openshift-node-3.0.2.0-0.git.20.656dc3e.el7ose")) 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 / openshift-clients / openshift-master / openshift-node / etc");
  }
}