Vulnerabilities > CVE-2017-11883 - Unspecified vulnerability in Microsoft Aspnetcore 1.0/1.1/2.0

047910
CVSS 5.0 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
PARTIAL
network
low complexity
microsoft
nessus

Summary

.NET Core 1.0, 1.1, and 2.0 allow an unauthenticated attacker to remotely cause a denial of service attack against a .NET Core web application by improperly handling web requests, aka ".NET CORE Denial Of Service Vulnerability".

Vulnerable Configurations

Part Description Count
Application
Microsoft
3

Nessus

NASL familyWindows
NASL idSMB_NT_MS17_ASPDOT_NET_12219.NASL
descriptionThe remote Windows host has an installation of ASP.NET Core runtime package store with a version less than 2.0.12219.0. Therefore the host is affected by multiple vulnerabilities : - An open redirect vulnerability that can lead to an escalation of privilege. (CVE-2017-11879) - A flaw that is triggered as web requests are not properly handled. This may allow a context-dependent attacker to cause a denial of service. (CVE-2017-11883)
last seen2020-06-01
modified2020-06-02
plugin id104665
published2017-11-17
reporterThis script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/104665
titleSecurity Update ASP .NET Core September 2017
code
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the Microsoft Security Updates API. The text
# itself is copyright (C) Microsoft Corporation.
#
include("compat.inc");

if (description)
{
  script_id(104665);
  script_version("1.8");
  script_cvs_date("Date: 2019/11/12");

  script_cve_id("CVE-2017-11879", "CVE-2017-11883");
  script_bugtraq_id(101713, 101835);

  script_name(english:"Security Update ASP .NET Core September 2017");
  script_summary(english:"Checks for Registry for ASP.Net Version");

  script_set_attribute(attribute:"synopsis", value:
"The remote Windows host is affected by an ASP.NET Core runtime
vulnerability.");
  script_set_attribute(attribute:"description", value:
"The remote Windows host has an installation of ASP.NET Core
runtime package store with a version less than 2.0.12219.0.
Therefore the host is affected by multiple vulnerabilities :

  -  An open redirect vulnerability
     that can lead to an escalation of privilege.
     (CVE-2017-11879)

  -  A flaw that is triggered as web requests are not properly
     handled. This may allow a context-dependent attacker to cause
     a denial of service.
     (CVE-2017-11883)");
  script_set_attribute(attribute:"see_also", value:"https://github.com/aspnet/announcements/issues/278");
  script_set_attribute(attribute:"see_also", value:"https://github.com/aspnet/announcements/issues/277");
  # https://download.microsoft.com/download/5/C/1/5C190037-632B-443D-842D-39085F02E1E8/AspNetCore.2.0.3.RuntimePackageStore_x64.exe
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?76216cca");
  # https://download.microsoft.com/download/5/C/1/5C190037-632B-443D-842D-39085F02E1E8/AspNetCore.2.0.3.RuntimePackageStore_x86.exe
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c82bcb0e");
  script_set_attribute(attribute:"solution", value:
"Download and update ASP .NET Core 2.0.3 runtime packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:N/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:U/C:H/I:H/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-2017-11879");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/11/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/11/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/11/17");

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

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

  script_copyright(english:"This script is Copyright (C) 2017-2019 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("global_settings.inc");
include("audit.inc");
include("install_func.inc");
include("misc_func.inc");
include("smb_func.inc");

bulletin = "MS17-11";
appname = 'ASP .NET Core Windows';
port = kb_smb_transport();

get_install_count(app_name:appname, exit_if_zero:TRUE);
install  = get_single_install(app_name:appname, exit_if_unknown_ver:TRUE);
fix_ver = "2.0.12219.0";
version = install['version'];

if(ver_compare(ver: version, fix:fix_ver) < 0)
{
  report =
    '\n  Path              : ' + install['path'] +
    '\n  Installed version : ' + version +
    '\n  Fixed version     : ' + fix_ver +
    '\n';

  security_report_v4(port:port, severity:SECURITY_WARNING, extra:report);
  exit(0);
}

audit(AUDIT_INST_VER_NOT_VULN, appname, version);

The Hacker News

idTHN:96CCD36932DBF3F5BEFCC18D4EC4E5C2
last seen2018-01-27
modified2017-11-15
published2017-11-14
reporterSwati Khandelwal
sourcehttps://thehackernews.com/2017/11/microsoft-patch-tuesday.html
titlePatch Tuesday: Microsoft Releases Update to Fix 53 Vulnerabilities