SAP NetWeaver AS Java XSS (2956398)

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

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

if (description)
{
  script_id(156326);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/12/29");

  script_cve_id("CVE-2020-6319");
  script_xref(name:"IAVA", value:"2020-A-0364");

  script_name(english:"SAP NetWeaver AS Java XSS (2956398)");

  script_set_attribute(attribute:"synopsis", value:
"The remote SAP NetWeaver AS Java server may be affected by cross site scripting vulnerability");
  script_set_attribute(attribute:"description", value:
"A cross site scripting vulnerability exists in SAP NetWeaver AS Java versions 7.10, 7.11, 7.20, 7.30, 7.31, 7.40
and 7.50 which may allow an unauthenticated attacker to steal authentication information of the user.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://launchpad.support.sap.com/#/notes/2956398");
  script_set_attribute(attribute:"solution", value:
"Apply the appropriate patch according to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:P/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:N/UI:R/S:C/C:L/I:L/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-2020-6319");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/10/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/10/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/12/28");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:sap:netweaver_application_server");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2021 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("sap_netweaver_as_web_detect.nbin");
  script_require_keys("installed_sw/SAP Netweaver Application Server (AS)", "Settings/ParanoidReport");
  script_require_ports("Services/www", 80, 443, 8000, 50000);

  exit(0);
}

include('vcf_extras_sap.inc');

if (report_paranoia < 2) audit(AUDIT_PARANOID);

var app_info = vcf::sap_netweaver_as::get_app_info();

var constraints = [
  {'equal' : '7.10', 'fixed_display' : 'See vendor advisory' },
  {'equal' : '7.11', 'fixed_display' : 'See vendor advisory' },
  {'equal' : '7.20', 'fixed_display' : 'See vendor advisory' },
  {'equal' : '7.30', 'fixed_display' : 'See vendor advisory' },
  {'equal' : '7.31', 'fixed_display' : 'See vendor advisory' },
  {'equal' : '7.40', 'fixed_display' : 'See vendor advisory' },
  {'equal' : '7.50', 'fixed_display' : 'See vendor advisory' }
];

vcf::sap_netweaver_as::check_version_and_report(
  app_info:app_info,
  constraints:constraints,
  severity:SECURITY_WARNING,
  flags:{xss:TRUE}
);