Vulnerabilities > CVE-2019-14819 - Unspecified vulnerability in Redhat Openshift Container Platform 3.10/3.11

047910
CVSS 8.8 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
LOW
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
network
low complexity
redhat
nessus

Summary

A flaw was found during the upgrade of an existing OpenShift Container Platform 3.x cluster. Using CRI-O, the dockergc service account is assigned to the current namespace of the user performing the upgrade. This flaw can allow an unprivileged user to escalate their privileges to those allowed by the privileged Security Context Constraints.

Vulnerable Configurations

Part Description Count
Application
Redhat
2

Nessus

NASL familyRed Hat Local Security Checks
NASL idREDHAT-RHSA-2019-2818.NASL
descriptionAn update for openshift-ansible is now available for Red Hat OpenShift Container Platform 3.11. 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
last seen2020-06-01
modified2020-06-02
plugin id129266
published2019-09-24
reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/129266
titleRHEL 7 : OpenShift Container Platform 3.11 (RHSA-2019:2818)
code
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2019:2818. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(129266);
  script_version("1.4");
  script_cvs_date("Date: 2019/12/24");

  script_cve_id("CVE-2019-14819");
  script_xref(name:"RHSA", value:"2019:2818");

  script_name(english:"RHEL 7 : OpenShift Container Platform 3.11 (RHSA-2019:2818)");
  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-ansible is now available for Red Hat OpenShift
Container Platform 3.11.

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.

Security Fix(es) :

* openshift-ansible: dockergc service account incorrectly associated
with namespace during upgrade (CVE-2019-14819)

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.

All OpenShift Container Platform 3.11 users are advised to upgrade to
these updated packages and images."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2019:2818"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2019-14819"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:S/C:C/I:C/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:H/PR:L/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:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-ansible");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-ansible-docs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-ansible-playbooks");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openshift-ansible-roles");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");

  script_set_attribute(attribute:"patch_publication_date", value:"2019/09/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/09/24");
  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([^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);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2019:2818";
  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_exists(rpm:"openshift-ansible-3.11", release:"RHEL7") && rpm_check(release:"RHEL7", reference:"openshift-ansible-3.11.146-1.git.0.fcedb45.el7")) flag++;
  if (rpm_exists(rpm:"openshift-ansible-docs-3.11", release:"RHEL7") && rpm_check(release:"RHEL7", reference:"openshift-ansible-docs-3.11.146-1.git.0.fcedb45.el7")) flag++;
  if (rpm_exists(rpm:"openshift-ansible-playbooks-3.11", release:"RHEL7") && rpm_check(release:"RHEL7", reference:"openshift-ansible-playbooks-3.11.146-1.git.0.fcedb45.el7")) flag++;
  if (rpm_exists(rpm:"openshift-ansible-roles-3.11", release:"RHEL7") && rpm_check(release:"RHEL7", reference:"openshift-ansible-roles-3.11.146-1.git.0.fcedb45.el7")) 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, "openshift-ansible / openshift-ansible-docs / etc");
  }
}

Redhat

rpms
  • openshift-ansible-0:3.11.146-1.git.0.fcedb45.el7
  • openshift-ansible-docs-0:3.11.146-1.git.0.fcedb45.el7
  • openshift-ansible-playbooks-0:3.11.146-1.git.0.fcedb45.el7
  • openshift-ansible-roles-0:3.11.146-1.git.0.fcedb45.el7
  • openshift-ansible-test-0:3.11.146-1.git.0.fcedb45.el7