IBM MQ 8.0.0.x < 8.0.0.15 / 9.1.0.x < 9.1.0.5 LTS / 9.1.x < 9.1.5 CD DoS (CVE-2020-4466)

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

include('compat.inc');

if (description)
{
  script_id(139227);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/08/03");

  script_cve_id("CVE-2020-4466");

  script_name(english:"IBM MQ 8.0.0.x < 8.0.0.15 / 9.1.0.x < 9.1.0.5 LTS / 9.1.x < 9.1.5 CD DoS (CVE-2020-4466)");
  script_summary(english:"Checks the version of IBM MQ.");

  script_set_attribute(attribute:"synopsis", value:
"A message queuing service installed on the remote host is affected by a denial of service vulnerability.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version, the IBM MQ server installed on the remote host is 8.0.0.x prior to 8.0.0.15 or
9.1.0.x prior to 9.1.0.5 LTS or 9.1.5 CD and is therefore affected by a denial of service vulnerability. An
authenticated, remote attacker can exploit this issue and cause an error within the Queue processing function that will
crash the affected host.");
  script_set_attribute(attribute:"see_also", value:"https://www.ibm.com/support/pages/node/6252781");
  script_set_attribute(attribute:"solution", value:
"Upgrade to IBM MQ 8.0.0.15, 9.1.0.5 LTS, 9.1.5 CD or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/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:L/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:"cvss_score_source", value:"CVE-2020-4466");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/07/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/07/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/07/31");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:ibm:websphere_mq");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows");

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

  script_dependencies("websphere_mq_installed.nasl");
  script_require_keys("installed_sw/IBM WebSphere MQ", "Settings/ParanoidReport");

  exit(0);
}

include('audit.inc');
include('install_func.inc');

if (report_paranoia < 2) audit(AUDIT_PARANOID);

app_name = 'IBM WebSphere MQ';

install  = get_single_install(app_name:app_name, exit_if_unknown_ver:TRUE);

version  = install['version'];
path = install['path'];
fix = NULL;

# 8.0.x < 8.0.0.15
if (version =~ "^8\.0\.0\.")
{
  fix = '8.0.0.15';
}
# 9.1.x < 9.1.0.5 LTS
else if (version =~ "^9\.1\.0\.")
{
  fix = '9.1.0.5';
}
# 9.1.1 < 9.1.5 CD
else if (version =~ "^9\.1\.[1-4]($|\.)")
{
  fix = '9.1.5';
}
else audit(AUDIT_INST_PATH_NOT_VULN, app_name, version, path);

if (flag || ver_compare(ver:version, fix:fix, strict:FALSE) == -1)
{
  port = get_kb_item('SMB/transport');
  if (!port) port = 445;

  report =
    '\n  Path              : ' + path +
    '\n  Installed version : ' + version +
    '\n  Fixed version     : ' + fix +
    '\n';
  security_report_v4(port:port, extra:report, severity:SECURITY_WARNING);
}
else audit(AUDIT_INST_PATH_NOT_VULN, app_name, version, path);