IBM San Volume Controller / Storwize / FlashSystem Arbitrary File Read (CVE-2018-1775)

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

include("compat.inc");

if (description)
{
  script_id(125897);
  script_version("1.2");
  script_cvs_date("Date: 2019/10/18 23:14:15");

  script_cve_id("CVE-2018-1775");
  script_bugtraq_id(107187);
  script_xref(name:"IAVA", value:"2019-A-0190");

  script_name(english:"IBM San Volume Controller / Storwize / FlashSystem Arbitrary File Read (CVE-2018-1775)");
  script_summary(english:"Checks for vulnerable IBM firmware versions.");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is affected by a arbitrary file read vulnerability.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version number, the IBM San Volume Controller, Storwize or FlashSystem is vulnerable to
an arbitrary file read vulnerability which exists in the service assistant GUI. An authenticated, remote attacker can
exploit this, to read arbitrary files and disclose sensitive information.");
  script_set_attribute(attribute:"see_also", value:"https://www-01.ibm.com/support/docview.wss?uid=ibm10872486");
  script_set_attribute(attribute:"solution", value:
"Upgrade to a firmware version 7.8.1.8, 8.1.3.3, 8.2.0.0, 8.2.1.0 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/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:N/AC:L/PR:L/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-2018-1775");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/02/25");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/02/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/06/14");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:ibm:san_volume_controller_software");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:ibm:storwize_v5000_software");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:ibm:storwize_v7000_software");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:ibm:flashsystem_v9000_firmware");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

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

  script_dependencies("ibm_storwize_detect.nbin");
  script_require_ports("Host/IBM/Storwize/version", "Host/IBM/Storwize/machine_major", "Host/IBM/Storwize/display_name");

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");

version = get_kb_item_or_exit("Host/IBM/Storwize/version");
# Everything we can get a machine major for is affected
machine_major = get_kb_item_or_exit("Host/IBM/Storwize/machine_major");
display_name = get_kb_item_or_exit("Host/IBM/Storwize/display_name");

if (version == UNKNOWN_VER)
  audit(AUDIT_UNKNOWN_APP_VER, display_name);

# 7.5.x < 7.8.1.8
# 8.0.x < 8.1.3.3
if (version =~ "^7\.[5-8]\.")
  fix = "7.8.1.8";
else if (version =~ "^8\.[01]\.")
  fix = "8.1.3.3";
else if (version =~ "^8\.2\.0\.")
  fix = "8.2.0.0";
else if (version =~ "^8\.2\.1\.")
  fix = "8.2.1.0";
else audit(AUDIT_DEVICE_NOT_VULN, display_name, version);

if (ver_compare(ver:version, fix:fix) < 0)
{
  report =
    '\n  Name              : ' + display_name +
    '\n  Installed version : ' + version +
    '\n  Fixed version     : ' + fix +
    '\n';
  security_report_v4(severity:SECURITY_WARNING, port:0, extra:report);
}
else audit(AUDIT_DEVICE_NOT_VULN, display_name, version);