IBM WebSphere Application Server 7.0.0.x < 7.0.0.43 / 8.0.0.x < 8.0.0.14 / 8.5.x < 8.5.5.12 / 9.0.0.x < 9.0.0.4 SOAP Connectors DoS

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

include("compat.inc");

if (description)
{
  script_id(102586);
  script_version("1.2");
  script_cvs_date("Date: 2019/11/12");

  script_cve_id("CVE-2016-8919");
  script_bugtraq_id(95650);

  script_name(english:"IBM WebSphere Application Server 7.0.0.x < 7.0.0.43 / 8.0.0.x < 8.0.0.14 / 8.5.x < 8.5.5.12 / 9.0.0.x < 9.0.0.4 SOAP Connectors DoS");
  script_summary(english:"Reads the version number from the SOAP and GIOP services.");

  script_set_attribute(attribute:"synopsis", value:
"The remote web application server is affected by a denial of service
vulnerability.");
  script_set_attribute(attribute:"description", value:
"The IBM WebSphere Application Server running on the remote host is
version 7.0.0.x prior to 7.0.0.43, 8.0.0.x prior to 8.0.0.14, 8.5.x
prior to 8.5.5.12, or 9.0.0.x prior to 9.0.0.4. It is, therefore,
affected by an input validation flaw in SOAP connectors that allows a
remote user to cause serialized objects to run, consuming excessive
resources on the target system.");
  script_set_attribute(attribute:"see_also", value:"http://www-01.ibm.com/support/docview.wss?uid=swg21993797");
  script_set_attribute(attribute:"solution", value:
"Apply IBM WebSphere Application Server version 7.0 Fix Pack 43
(7.0.0.43) / 8.0 Fix Pack 14 (8.0.0.14) (targeted availability 16
October 2017) / 8.5 Fix Pack 12 (8.5.5.12) / 9.0 Fix Pack 4
(9.0.0.4) or later. Alternatively, upgrade to the minimal fix pack
levels required by the interim fix and then apply Interim Fix PI73519.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  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:N/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:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/01/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/01/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/08/18");

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

  script_category(ACT_GATHER_INFO);
  script_family(english:"Web Servers");

  script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("websphere_detect.nasl");
  script_require_keys("www/WebSphere", "Settings/ParanoidReport");
  script_require_ports("Services/www", 8880, 8881, 9001);

  exit(0);
}

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

if (report_paranoia < 2) audit(AUDIT_PARANOID);

port = get_http_port(default:8880, embedded:FALSE);

version = get_kb_item_or_exit("www/WebSphere/"+port+"/version");
source = get_kb_item_or_exit("www/WebSphere/"+port+"/source");

app_name = "IBM WebSphere Application Server";

if (version =~ "^([789](\.0)?|8\.5)$")
  audit(AUDIT_VER_NOT_GRANULAR, app_name, port, version);

fix = FALSE; # Fixed version for compare
min = FALSE; # Min version for branch
pck = FALSE; # Fix pack name (tacked onto fix in report)
itr = "PI73519"; # Interim fix

if (version =~ "^9\.0\.")
{
  fix = '9.0.0.4';
  min = '9.0.0.0';
  pck = " (Fix Pack 4)";
}
else if (version =~ "^8\.5\.")
{
  fix = '8.5.5.12';
  min = '8.5.5.0';
  pck = " (Fix Pack 12)";
}
else if (version =~ "^8\.0\.")
{
  fix = '8.0.0.14';
  min = '8.0.0.0';
  pck = " (Fix Pack 14)";
}
else if (version =~ "^7\.0\.")
{
  fix = '7.0.0.43';
  min = '7.0.0.0';
  pck = " (Fix Pack 43)";
}
else
  audit(AUDIT_LISTEN_NOT_VULN, app_name, port, version);

report =
  '\n  Version source    : ' + source  +
  '\n  Installed version : ' + version;

if (ver_compare(ver:version, minver:min, fix:fix, strict:FALSE) <  0)
    report +=
      '\n  Fixed version     : ' + fix + pck +
      '\n  Interim fix       : ' + itr;
else audit(AUDIT_LISTEN_NOT_VULN, app_name, port, version);

report += '\n';

security_report_v4(port:port, severity:SECURITY_HOLE, extra:report);