Oracle WebLogic Server Java Object RMI Connect-Back Deserialization RCE (January 2017 CPU)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(96610);
  script_version("1.17");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/12/12");

  script_cve_id("CVE-2017-3248");
  script_bugtraq_id(95465);
  script_xref(name:"TRA", value:"TRA-2017-07");
  script_xref(name:"ZDI", value:"ZDI-17-055");

  script_name(english:"Oracle WebLogic Server Java Object RMI Connect-Back Deserialization RCE (January 2017 CPU)");

  script_set_attribute(attribute:"synopsis", value:
"An application server installed on the remote host is affected by a
remote code execution vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of Oracle WebLogic Server installed on the remote host is
affected by a remote code execution vulnerability in the Core
Components subcomponent due to unsafe deserialization of Java objects
by the RMI registry. An unauthenticated, remote attacker can exploit
this, via a crafted Java object, to execute arbitrary Java code in the
context of the WebLogic server.");
  # http://www.oracle.com/technetwork/security-advisory/cpujan2017-2881727.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?89a8e429");
  script_set_attribute(attribute:"see_also", value:"https://www.tenable.com/security/research/tra-2017-07");
  script_set_attribute(attribute:"see_also", value:"https://www.zerodayinitiative.com/advisories/ZDI-17-055/");
  script_set_attribute(attribute:"solution", value:
"Apply the appropriate patch according to the January 2017 Oracle
Critical Patch Update advisory.");
  script_set_attribute(attribute:"agent", value:"all");
  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-2017-3248");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Oracle Weblogic Server Deserialization RCE - RMI UnicastRef');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  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:"2017/01/18");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:oracle:fusion_middleware");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:oracle:weblogic_server");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2017-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("oracle_weblogic_server_installed.nbin");
  script_require_ports("installed_sw/Oracle WebLogic Server", "installed_sw/JDeveloper's Integrated WebLogic Server");

  exit(0);
}

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

var app_name = 'Oracle WebLogic Server';

var install = get_single_install(app_name:app_name, exit_if_unknown_ver:TRUE);
var ohome = install['Oracle Home'];
var subdir = install['path'];
var version = install['version'];
var id, port;
var fix = NULL;
var fix_ver = NULL;

# individual security patches
if (version =~ "^10\.3\.6\.")
{
  fix_ver = '10.3.6.0.170117';
  # SU patch IDs found on:
  # https://support.oracle.com/epmos/faces/ui/patch/PatchDetail.jspx?_afrLoop=383735510156080&parent=DOCUMENT&patchId=24667634
  fix = make_list('XIDD', 'RVBS', 'JWEB');
}
else if (version =~ "^12\.1\.3\.")
{
  fix_ver = '12.1.3.0.170117';
  fix = make_list('24904852');
}
else if (version =~ "^12\.2\.1\.0($|[^0-9])")
{
  fix_ver = '12.2.1.0.170117';
  fix = make_list('24904865');
}
else if (version =~ "^12\.2\.1\.1($|[^0-9])")
{
  fix_ver = '12.2.1.1.170117';
  fix = make_list('24907328');
}
else
  audit(AUDIT_INST_PATH_NOT_VULN, app_name, version, subdir);

spad_log(message:'checking fix [' + obj_rep(fix) + ']');
var PATCHED=FALSE;

# Iterate over the list of patches and check the install for the patchID
foreach id (fix)
{
 spad_log(message:'Checking fix id: [' + id +']');
 if (install[id])
 {
   PATCHED=TRUE;
   break;
 }
}

var VULN=FALSE;
if (ver_compare(ver:version, fix:fix_ver, strict:FALSE) == -1)
  VULN=TRUE;

if (PATCHED || !VULN)
  audit(AUDIT_INST_PATH_NOT_VULN, app_name, version, subdir);

var os = get_kb_item('Host/OS');
if ('windows' >< tolower(os))
{
  port = get_kb_item('SMB/transport');
  if (!port) port = 445;
}
else port = 0;

var report =
  '\n  Oracle Home    : ' + ohome +
  '\n  Install path   : ' + subdir +
  '\n  Version        : ' + version +
  '\n  Fixes          : ' + join(sep:', ', fix);

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