HP Network Automation RPCServlet Java Object Deserialization RCE

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

include("compat.inc");

if (description)
{
  script_id(95658);
  script_version("1.9");
  script_cvs_date("Date: 2019/11/13");

  script_cve_id("CVE-2016-8511");
  script_bugtraq_id(94610);
  script_xref(name:"HP", value:"HPSBGN03677");
  script_xref(name:"HP", value:"emr_na-c05344849");

  script_name(english:"HP Network Automation RPCServlet Java Object Deserialization RCE");
  script_summary(english:"Checks the version of HP Network Automation.");

  script_set_attribute(attribute:"synopsis", value:
"An application running on the remote host is affected by a remote code
execution vulnerability.");
  script_set_attribute(attribute:"description", value:
"The HP Network Automation application running on the remote host is
version 9.1x, 9.2x, or 10.00.x prior to 10.00.021; 10.10.x or 10.11.x
prior to 10.11.011; or 10.20.x prior to 10.20.001. It is, therefore,
affected by a remote code execution vulnerability in RPCServlet due to
improper sanitization of user-supplied input before attempting
deserialization of Java objects. An unauthenticated, remote attacker
can exploit this, via a specially crafted request, to execute
arbitrary code.");
  # https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-c05344849
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?98a60471");
  script_set_attribute(attribute:"solution", value:
"Apply the appropriate patch according to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:ND");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:X");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-8511");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"in_the_news", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/11/28");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/11/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/12/09");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:hp:network_automation");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("hp_network_automation_detect.nbin");
  script_require_keys("installed_sw/HP Network Automation");
  script_require_ports("Services/www", 443);

  exit(0);
}

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

app_name = "HP Network Automation";
get_install_count(app_name:app_name, exit_if_zero:TRUE);

port    = get_http_port(default:443);
install = get_single_install(app_name:app_name, port:port, exit_if_unknown_ver:TRUE);
version = install['version'];
url     = build_url(port:port,qs:install['path']);

fix = NULL;
vuln = FALSE;

# 9.1x or v9.2x should upgrade to v10.0x, or v10.1x or v10.2x
if (version =~ "^9\.[1-2][0-9](\.|$)")
{
  fix = "10.0x / 10.1x / 10.2x";
  vuln = TRUE;
}
else if (version =~ "^10\.00(\.|$)")
{
  fix = "10.00.021";
}
else if (version =~ "^10.1[0-1](\.|$)")
{
  fix = "10.11.011";
}
else if (version =~ "^10.20(\.|$)")
{
  fix = "10.20.001";
}

if (isnull(fix))
  audit(AUDIT_WEB_APP_NOT_AFFECTED, app_name, url, version);

if (!vuln)
{
  if (ver_compare(ver:version, fix:fix, strict:FALSE) < 0 )
  vuln = TRUE;
}

if (vuln)
{
  items = make_array("URL", url,
                     "Installed version", version,
                     "Fixed version", fix
                    );
  order = make_list("URL", "Installed version", "Fixed version");
  report = report_items_str(report_items:items, ordered_fields:order);
  security_report_v4(port:port, extra:report, severity:SECURITY_HOLE);
  exit(0);
}
else
  audit(AUDIT_WEB_APP_NOT_AFFECTED, app_name, url, version);