RHEL 8 : OpenShift Container Platform 4.2.22 runc (RHSA-2020:0688) - Nessus

High Plugin ID: 134391

This page contains detailed information about the RHEL 8 : OpenShift Container Platform 4.2.22 runc (RHSA-2020:0688) Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.

Table Of Contents

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Plugin Overview
Vulnerability Information

Synopsis
Description
Solution

Public Exploits
Risk Information
Plugin Source
How to Run
References
Version

Plugin Overview

ID: 134391
Name: RHEL 8 : OpenShift Container Platform 4.2.22 runc (RHSA-2020:0688)
Filename: redhat-RHSA-2020-0688.nasl
Vulnerability Published: 2020-01-30
This Plugin Published: 2020-03-11
Last Modification Time: 2021-10-13
Plugin Version: 1.4
Plugin Type: local
Plugin Family: Red Hat Local Security Checks
Dependencies: redhat_repos.nasl, ssh_get_info.nasl
Required KB Items [?]: Host/cpu, Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list

Vulnerability Information

Severity: High
Vulnerability Published: 2020-01-30
Patch Published: 2020-03-10
CVE [?]: CVE-2019-19921
CPE [?]: cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:runc

Synopsis

The remote Red Hat host is missing a security update.

Description

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2020:0688 advisory.

- runc: volume mount race condition with shared mounts leads to information leak/integrity manipulation (CVE-2019-19921)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected runc package.

Public Exploits

Target Network Port(s): N/A
Target Asset(s): N/A
Exploit Available: True (GitHub)
Exploit Ease: Exploits (PoCs) are available

Here's the list of publicly known exploits and PoCs for verifying the RHEL 8 : OpenShift Container Platform 4.2.22 runc (RHSA-2020:0688) vulnerability:

GitHub: https://github.com/Metarget/awesome-cloud-native-security
[CVE-2019-19921]

Before running any exploit against any system, make sure you are authorized by the owner of the target system(s) to perform such activity. In any other case, this would be considered as an illegal activity.

WARNING: Beware of using unverified exploits from sources such as GitHub or Exploit-DB. These exploits and PoCs could contain malware. For more information, see how to use exploits safely.

Risk Information

CVSS Score Source [?]: CVE-2019-19921
CVSS V2 Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P/E:U/RL:OF/RC:C

CVSS Base Score:	4.4 (Medium)
Impact Subscore:	6.4
Exploitability Subscore:	3.4
CVSS Temporal Score:	3.3 (Low)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	3.3 (Low)

CVSS V3 Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

CVSS Base Score:	7.0 (High)
Impact Subscore:	5.9
Exploitability Subscore:	1.0
CVSS Temporal Score:	6.1 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	6.1 (Medium)

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Plugin Source

##
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2020:0688. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(134391);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/10/13");

  script_cve_id("CVE-2019-19921");
  script_xref(name:"RHSA", value:"2020:0688");

  script_name(english:"RHEL 8 : OpenShift Container Platform 4.2.22 runc (RHSA-2020:0688)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in
the RHSA-2020:0688 advisory.

  - runc: volume mount race condition with shared mounts leads to information leak/integrity manipulation
    (CVE-2019-19921)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://cwe.mitre.org/data/definitions/41.html");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2019-19921");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2020:0688");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/1796107");
  script_set_attribute(attribute:"solution", value:
"Update the affected runc package.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/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:"cvss_score_source", value:"CVE-2019-19921");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(41);

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/01/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/03/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/03/11");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:runc");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2020-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl", "redhat_repos.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');
include('rhel.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var release = get_kb_item('Host/RedHat/release');
if (isnull(release) || 'Red Hat' >!< release) audit(AUDIT_OS_NOT, 'Red Hat');
var 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');
var os_ver = os_ver[1];
if (!rhel_check_release(operator: 'ge', os_version: os_ver, rhel_version: '8')) audit(AUDIT_OS_NOT, 'Red Hat 8.x', 'Red Hat ' + os_ver);

if (!get_kb_item('Host/RedHat/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Red Hat', cpu);

var repositories = {
    'openshift_4_2_el8': [
      'rhocp-4.2-for-rhel-8-s390x-debug-rpms',
      'rhocp-4.2-for-rhel-8-s390x-rpms',
      'rhocp-4.2-for-rhel-8-s390x-source-rpms',
      'rhocp-4.2-for-rhel-8-x86_64-debug-rpms',
      'rhocp-4.2-for-rhel-8-x86_64-rpms',
      'rhocp-4.2-for-rhel-8-x86_64-source-rpms'
    ]
};

var repo_sets = rhel_get_valid_repo_sets(repositories:repositories);
if(repo_sets == RHEL_REPOS_NO_OVERLAP_MESSAGE) audit(AUDIT_PACKAGE_LIST_MISSING, RHEL_REPO_AUDIT_PACKAGE_LIST_DETAILS);

var pkgs = [
    {'reference':'runc-1.0.0-63.rc10.rhaos4.2.gitdc9208a.el8', 'cpu':'s390x', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'atomic-openshift-', 'repo_list':['openshift_4_2_el8']},
    {'reference':'runc-1.0.0-63.rc10.rhaos4.2.gitdc9208a.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'atomic-openshift-', 'repo_list':['openshift_4_2_el8']}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var reference = NULL;
  var release = NULL;
  var sp = NULL;
  var cpu = NULL;
  var el_string = NULL;
  var rpm_spec_vers_cmp = NULL;
  var epoch = NULL;
  var allowmaj = NULL;
  var exists_check = NULL;
  var repo_list = NULL;
  if (!empty_or_null(package_array['repo_list'])) repo_list = package_array['repo_list'];
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) release = 'RHEL' + package_array['release'];
  if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
  if (!empty_or_null(package_array['cpu'])) cpu = package_array['cpu'];
  if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
  if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
  if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
  if (reference &&
      release &&
      (rhel_decide_repo_check(repo_list:repo_list, repo_sets:repo_sets) || (!exists_check || rpm_exists(release:release, rpm:exists_check))) &&
      rpm_check(release:release, sp:sp, cpu:cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
}

if (flag)
{
  var extra = NULL;
  if (empty_or_null(repo_sets)) extra = rpm_report_get() + redhat_report_repo_caveat();
  else extra = rpm_report_get() + redhat_report_package_caveat();
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : extra
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'runc');
}

The latest version of this script can be found in these locations depending on your platform:

Linux / Unix:
/opt/nessus/lib/nessus/plugins/redhat-RHSA-2020-0688.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\redhat-RHSA-2020-0688.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/redhat-RHSA-2020-0688.nasl

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How to Run

Here is how to run the RHEL 8 : OpenShift Container Platform 4.2.22 runc (RHSA-2020:0688) as a standalone plugin via the Nessus web user interface (https://localhost:8834/):

Click to start a New Scan.
Select Advanced Scan.
Navigate to the Plugins tab.
On the top right corner click to Disable All plugins.
On the left side table select Red Hat Local Security Checks plugin family.
On the right side table select RHEL 8 : OpenShift Container Platform 4.2.22 runc (RHSA-2020:0688) plugin ID 134391.
Specify the target on the Settings tab and click to Save the scan.
Run the scan.

Here are a few examples of how to run the plugin in the command line. Note that the examples below demonstrate the usage on the Linux / Unix platform.

Basic usage:

/opt/nessus/bin/nasl redhat-RHSA-2020-0688.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a redhat-RHSA-2020-0688.nasl -t <IP/HOST>

Run the plugin with trace script execution written to the console (useful for debugging):

/opt/nessus/bin/nasl -T - redhat-RHSA-2020-0688.nasl -t <IP/HOST>

Run the plugin with using a state file for the target and updating it (useful for running multiple plugins on the target):

/opt/nessus/bin/nasl -K /tmp/state redhat-RHSA-2020-0688.nasl -t <IP/HOST>

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References

RHSA | Red Hat Security Advisory:

2020:0688

CWE | Common Weakness Enumeration:

CWE-41 (Weakness) Improper Resolution of Path Equivalence

See also:

Similar and related Nessus plugins:

135934 - Amazon Linux AMI : runc (ALAS-2020-1358)
145798 - CentOS 8 : container-tools:rhel8 (CESA-2020:1650)
160134 - EulerOS 2.0 SP5 : docker-engine (EulerOS-SA-2022-1550)
160173 - EulerOS 2.0 SP8 : docker-engine (EulerOS-SA-2022-1585)
133569 - Fedora 31 : 2:runc (2020-46ecc60897)
133581 - Fedora 30 : 2:runc (2020-b2c1f6cc75)
134598 - GLSA-202003-21 : runC: Multiple vulnerabilities
133714 - openSUSE Security Update : docker-runc (openSUSE-2020-219)
139863 - Photon OS 2.0: Runc PHSA-2020-2.0-0275
137201 - Photon OS 3.0: Runc PHSA-2020-3.0-0102
134557 - RHEL 8 : OpenShift Container Platform 4.1.38 (RHSA-2020:0695)
134836 - RHEL 7 : runc (RHSA-2020:0942)
135769 - RHEL 7 : OpenShift Container Platform 4.3.13 runc (RHSA-2020:1485)
136053 - RHEL 8 : container-tools:rhel8 (RHSA-2020:1650)
133602 - SUSE SLED15 / SLES15 Security Update : docker-runc (SUSE-SU-2020:0375-1)
135281 - SUSE SLES15 Security Update : runc (SUSE-SU-2020:0944-1)
134367 - Ubuntu 18.04 LTS / 19.10 : runc vulnerabilities (USN-4297-1)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file redhat-RHSA-2020-0688.nasl version 1.4. For more plugins, visit the Nessus Plugin Library.

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RHEL 8 : OpenShift Container Platform 4.2.22 runc (RHSA-2020:0688) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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