Security Update for Microsoft ASP.NET Core (DoS) (May 2019)

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

include("compat.inc");

if (description)
{
  script_id(125164);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/01/25");

  script_cve_id("CVE-2019-0980", "CVE-2019-0981", "CVE-2019-0982");
  script_bugtraq_id(108207, 108208);

  script_name(english:"Security Update for Microsoft ASP.NET Core (DoS) (May 2019)");
  script_summary(english:"Checks the version of Microsoft ASP.NET Core packages.");

  script_set_attribute(attribute:"synopsis", value:
"The Microsoft ASP.NET Core installations on the remote host contain vulnerable packages.");
  script_set_attribute(attribute:"description", value:
"The Microsoft ASP.NET Core installation on the remote
host is version 2.1.x < 2.1.11, 2.2.x < 2.2.5. It is, therefore,
affected by a denial of service (DoS) vulnerability when
ASP.NET Core improperly handles web requests. An unauthenticated,
remote attacker could exploit this issue, via sending a specially
crafted requests to the .NET Core application, to cause the
application to stop responding.");
  # https://devblogs.microsoft.com/dotnet/net-core-may-2019/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?75f23c84");
  # https://github.com/dotnet/announcements/issues/112
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?d238d2f5");
  # https://github.com/dotnet/announcements/issues/113
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f495ef09");
  # https://github.com/aspnet/Announcements/issues/359
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?cdcee111");
  script_set_attribute(attribute:"solution", value:
"Update ASP.NET Core, remove vulnerable packages and refer to vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  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:"cvss_score_source", value:"CVE-2019-0980");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/05/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/05/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/05/16");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:asp.net_core");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows");

  script_copyright(english:"This script is Copyright (C) 2019-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("microsoft_asp_dotnet_core_win.nbin");
  script_require_keys("installed_sw/ASP .NET Core Windows");
  script_require_ports(139, 445);

  exit(0);
}

include('vcf.inc');

app = 'ASP .NET Core Windows';
app_info = vcf::get_app_info(app:app, win_local:TRUE);

constraints = [
  { 'min_version' : '2.1', 'fixed_version' : '2.1.11'},
  { 'min_version' : '2.2', 'fixed_version' : '2.2.5' }
];

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING);