Oracle WebLogic Server wls9_async_response / wls-wsat Remote Code Execution

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

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

if (description)
{
  script_id(124337);
  script_version("1.15");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/12/05");

  script_cve_id("CVE-2019-2725");
  script_bugtraq_id(108074);
  script_xref(name:"IAVA", value:"2019-A-0128");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2022/07/10");
  script_xref(name:"CISA-NCAS", value:"AA22-011A");
  script_xref(name:"CEA-ID", value:"CEA-2019-0242");

  script_name(english:"Oracle WebLogic Server wls9_async_response / wls-wsat Remote Code Execution");

  script_set_attribute(attribute:"synopsis", value:
"An application server installed on the remote host is affected by
multiple vulnerabilities.");
  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 WLS9-async component
due to unsafe deserialization of XML encoded Java objects. An unauthenticated, 
remote attacker can exploit this, via a crafted Java object, to execute 
arbitrary Java code in the context of the WebLogic server.");
  # https://www.oracle.com/technetwork/security-advisory/alert-cve-2019-2725-5466295.html#AppendixFMW
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?95b9a80b");
  script_set_attribute(attribute:"solution", value:
"Apply the appropriate patch according to the Oracle Security Alert
Advisory.

Refer to Oracle for any additional patch instructions or
mitigation options.");
  script_set_attribute(attribute:"agent", value:"unix
windows");
  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:H/RL:OF/RC:C");
  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:H/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-2725");

  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:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Oracle Weblogic Server Deserialization RCE - AsyncResponseService');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_set_attribute(attribute:"in_the_news", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/04/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/04/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/04/26");

  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:"stig_severity", value:"I");
  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) 2019-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("oracle_weblogic_server_installed.nbin", "os_fingerprint.nasl");
  script_require_keys("installed_sw/Oracle WebLogic Server");

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("install_func.inc");
include("obj.inc");
include("spad_log_func.inc");

app_name = "Oracle WebLogic Server";

install = get_single_install(app_name:app_name, exit_if_unknown_ver:TRUE);
ohome = install["Oracle Home"];
subdir = install["path"];
version = install["version"];

fix_sets = [];
extra = NULL;

spad_log(message:"checking version [" + version + "]");

if (version =~ "^12\.1\.3\." && ver_compare(ver:version, fix:"12.1.3.0.190716", strict:FALSE) < 0)
{
  fix_sets = [
    { 'fix_cpu' : '28710923', 'fix_adv' : '29694149'},
    { 'fix_cpu' : '29204657', 'fix_adv' : '29694149'},
    { 'fix_cpu' : '28710923', 'fix_adv' : '29792735'},
    { 'fix_cpu' : '29204657', 'fix_adv' : '29792736'},
    { 'fix_cpu' : '29633448', 'fix_adv' : '29633448'} # this little check-the-same-thing-2x code-hack allows us check for a supersede patch, thanks oracle!
  ];
  extra = '28710923 and 29694149 or 29204657 and 29694149 or 29633448\n';
}
else if (version =~ "^10\.3\.6\."  && ver_compare(ver:version, fix:"10.3.6.0.190716", strict:FALSE) < 0)
{
  fix_sets = [
    { 'fix_cpu' : '7HKN', 'fix_adv' : 'ICDZ'},
    { 'fix_cpu' : 'U5I2', 'fix_adv' : 'IL49'},
    { 'fix_cpu' : '7HKN', 'fix_adv' : '5H68'},
    { 'fix_cpu' : 'U5I2', 'fix_adv' : '6JJ4'},
    { 'fix_cpu' : 'MXLE', 'fix_adv' : 'MXLE'} # this little check-the-same-thing-2x code-hack allows us check for a supersede patch, thanks oracle!
  ];
  extra = '7HKN and ICDZ or U5I2 and IL49 or MXLE\n';
}
else
  audit(AUDIT_INST_PATH_NOT_VULN, app_name, version, subdir);

foreach fix (fix_sets)
{
  if( !isnull(install[fix['fix_cpu']]) && !isnull(install[fix['fix_adv']]) )
    audit(AUDIT_INST_PATH_NOT_VULN, app_name, version, subdir);
}

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

report =
  '\n  Oracle Home    : ' + ohome +
  '\n  Install path   : ' + subdir +
  '\n  Version        : ' + version + 
  '\n  Fix            : ' + extra;

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