IBM MQ 9.1.x < 9.2 CD / 9.1.0.x < 9.1.0.6 LTS Information Disclosure

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

include('compat.inc');

if (description)
{
  script_id(139237);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/07/16");

  script_cve_id("CVE-2020-4498");
  script_xref(name:"IAVA", value:"2020-A-0345-S");

  script_name(english:"IBM MQ 9.1.x < 9.2 CD / 9.1.0.x < 9.1.0.6 LTS Information Disclosure");

  script_set_attribute(attribute:"synopsis", value:
"A message queuing service installed on the remote host is affected by an information disclosure vulnerability.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version, the IBM MQ server installed on the remote host is 9.1.x prior to 9.2 CD, or
9.1.0.x prior to 9.1.0.6 LTS, and is therefore affected by an information disclosure vulnerability due to the inclusion
of sensitive information in trace files. An unauthenticated, local attacker could exploit this vulnerability, by
accessing the trace files, to acquire potentially sensitive information.");
  script_set_attribute(attribute:"see_also", value:"https://www.ibm.com/support/pages/node/6252409");
  script_set_attribute(attribute:"solution", value:
"Upgrade to IBM MQ 9.2 CD, 9.1.0.6 LTS or later as per the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-4498");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/07/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/07/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/07/31");

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

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

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

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

  exit(0);
}

include('install_func.inc');

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;

# 9.1.x < 9.1.0.6 LTS
if (version =~ "^9\.1\.0\.")
{
  fix = '9.1.0.6';
}
# 9.1.x < 9.2 CD
else if (version =~ "^9\.1($|\.)")
{
  fix = '9.2';
}
else
  audit(AUDIT_INST_PATH_NOT_VULN, app_name, version, path);

if (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_NOTE);
}
else audit(AUDIT_INST_PATH_NOT_VULN, app_name, version, path);