Rancher 2.0.x < 2.0.15 / 2.1.x < 2.1.10 / 2.2.x < 2.2.4 Command Injection

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(128057);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/08/19");

  script_cve_id("CVE-2019-12303");

  script_name(english:"Rancher 2.0.x < 2.0.15 / 2.1.x < 2.1.10 / 2.2.x < 2.2.4 Command Injection");

  script_set_attribute(attribute:"synopsis", value:
"A Docker container of Rancher installed on the remote host is missing a security patch.");
  script_set_attribute(attribute:"description", value:
"In Rancher 2 through 2.2.3, Project owners can inject additional fluentd configuration to read files or execute 
arbitrary commands inside the fluentd container.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version 
number.");
  # https://forums.rancher.com/t/rancher-release-v2-2-4-addresses-rancher-cve-2019-12274-and-cve-2019-12303/14466
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?76c65d4b");
  # https://github.com/rancher/rancher/releases/tag/v2.2.4
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?972b6c60");
  # https://github.com/rancher/rancher/releases/tag/v2.1.10
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?48cf906b");
  # https://github.com/rancher/rancher/releases/tag/v2.0.15
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3693a71b");
  script_set_attribute(attribute:"solution", value:
"Upgrade to version 2.0.15 / 2.1.10 / 2.2.4 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/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:N/AC:L/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-2019-12303");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/06/05");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/06/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/08/22");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"x-cpe:/a:rancher_labs:rancher");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("rancher_local_detection.nbin", "rancher_web_ui_detect.nbin");
  script_require_keys("installed_sw/Rancher", "Settings/ParanoidReport");

  exit(0);
}

include('vcf.inc');
include('vcf_extras.inc');

app = 'Rancher';

get_install_count(app_name:app, exit_if_zero:TRUE);
app_info = vcf::combined_get_app_info(app:app);

if (report_paranoia < 2) audit(AUDIT_PARANOID);

constraints = [
  {'min_version'   : '2.0.0',  'fixed_version' : '2.0.15'},
  {'min_version'   : '2.1.0',  'fixed_version' : '2.1.10'},
  {'min_version'   : '2.2.0',  'fixed_version' : '2.2.4'}
];

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING);