Vulnerabilities > CVE-2019-0564 - Data Processing Errors vulnerability in Microsoft Asp.Net Core 2.1

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2019:0040. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(121143);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/02/24");

  script_cve_id("CVE-2019-0545", "CVE-2019-0548", "CVE-2019-0564");
  script_xref(name:"RHSA", value:"2019:0040");

  script_name(english:"RHEL 7 : dotNET (RHSA-2019:0040)");
  script_summary(english:"Checks the rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Red Hat host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Updates for rh-dotnet21-dotnet and rh-dotnet22-dotnet are now
available for .NET Core on Red Hat Enterprise Linux.

Red Hat Product Security has rated this update as having a security
impact of Moderate. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.

.NET Core is a managed software framework. It implements a subset of
the .NET framework APIs and several new APIs, and it includes a CLR
implementation.

New versions of .NET Core that address security vulnerabilities are
now available. The updated versions are .NET Core 2.1.5 and 2.2.1.

Security Fix(es) :

* .NET Core: NCL - SocketsHttpHandler mishandling 1xx response as a
final response leads to info disclosure (CVE-2019-0545)

* .NET Core: ANCM WebSocket DOS (CVE-2019-0548)

* .NET Core: Kestrel - WebSocket DoS via CancellationToken (CoreFX and
ASP.NET) (CVE-2019-0564)

For more details about the security issue(s), including the impact, a
CVSS score, and other related information, refer to the CVE page(s)
listed in the References section.

For more information, please refer to the upstream docs in the
References section."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2019:0040"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2019-0545"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2019-0548"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2019-0564"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/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:N/S:U/C:H/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet21");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet21-dotnet");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet21-dotnet-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet21-dotnet-host");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet21-dotnet-runtime-2.1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet21-dotnet-sdk-2.1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet21-dotnet-sdk-2.1.5xx");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet21-runtime");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet22");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet22-dotnet");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet22-dotnet-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet22-dotnet-host");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet22-dotnet-host-fxr-2.2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet22-dotnet-runtime-2.2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet22-dotnet-sdk-2.2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet22-dotnet-sdk-2.2.1xx");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet22-runtime");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/01/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/01/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/01/14");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Red Hat Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 7.x", "Red Hat " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);
if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2019:0040";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : yum_report 
    );
    exit(0);
  }
  else
  {
    audit_message = "affected by Red Hat security advisory " + rhsa;
    audit(AUDIT_OS_NOT, audit_message);
  }
}
else
{
  flag = 0;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet21-2.1-6.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet21-dotnet-2.1.503-1.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet21-dotnet-debuginfo-2.1.503-1.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet21-dotnet-host-2.1.7-1.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet21-dotnet-runtime-2.1-2.1.7-1.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet21-dotnet-sdk-2.1-2.1.503-1.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet21-dotnet-sdk-2.1.5xx-2.1.503-1.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet21-runtime-2.1-6.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet22-2.2-2.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet22-dotnet-2.2.102-1.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet22-dotnet-debuginfo-2.2.102-1.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet22-dotnet-host-2.2.1-1.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet22-dotnet-host-fxr-2.2-2.2.1-1.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet22-dotnet-runtime-2.2-2.2.1-1.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet22-dotnet-sdk-2.2-2.2.102-1.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet22-dotnet-sdk-2.2.1xx-2.2.102-1.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet22-runtime-2.2-2.el7")) flag++;

  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get() + redhat_report_package_caveat()
    );
    exit(0);
  }
  else
  {
    tested = pkg_tests_get();
    if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
    else audit(AUDIT_PACKAGE_NOT_INSTALLED, "rh-dotnet21 / rh-dotnet21-dotnet / rh-dotnet21-dotnet-debuginfo / etc");
  }
}

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

include("compat.inc");

if (description)
{
  script_id(123131);
  script_version("1.4");
  script_cvs_date("Date: 2020/01/17");

  script_cve_id("CVE-2019-0564");
  script_bugtraq_id(106413);

  script_name(english:"Security Update for Microsoft ASP.NET Core (DoS) (January 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 < 2.1.7, 2.2.x < 2.2.1. 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://blogs.msdn.microsoft.com/dotnet/2019/01/08/net-core-january-2019-update/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?75ce0f6d");
  # https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2019-0564
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?6458bbb4");
  # https://github.com/aspnet/Announcements/issues/334
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?171a1fd5");
  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-2019-0564");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/01/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/01/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/03/27");

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

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

  script_copyright(english:"This script is Copyright (C) 2019-2020 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');
include('vcf.inc');

appname = 'ASP .NET Core Windows';
port = kb_smb_transport();
vuln = FALSE;
install = get_single_install(app_name:appname);

report =
  '\n  Path              : ' + install['path'] +
  '\n  Installed version : ' + install['version'] +
  '\n';

package_dat = {
  'Microsoft.AspNetCore.All':{
    'constraints':[
      { 'min_version' : '2.1.0', 'fixed_version' : '2.1.7' },
      { 'min_version' : '2.2.0', 'fixed_version' : '2.2.1' }
    ]
  },
  'Microsoft.AspNetCore.App':{
    'constraints':[
      { 'min_version' : '2.1.0', 'fixed_version' : '2.1.7' },
      { 'min_version' : '2.2.0', 'fixed_version' : '2.2.1' }
    ]
  },
  'Microsoft.AspNetCore.Server.Kestrel.Core':{
    'constraints':[
      { 'min_version' : '2.1.0', 'max_version' : '2.1.3', 'fixed_version' : '2.1.7' }
    ]
  },
  'Microsoft.AspNetCore.WebSockets':{
    'constraints':[
      { 'min_version' : '2.1.0', 'max_version' : '2.1.1', 'fixed_version' : '2.1.7' },
      { 'min_version' : '2.2.0', 'fixed_version' : '2.2.1' }
    ]
  }
};

foreach package (keys(package_dat))
{
  foreach instance (split(install[package], sep:';', keep:false))
  {
    inst = split(instance, sep:'?', keep:false);
    out = vcf::check_version(version:vcf::parse_version(inst[0]), constraints:package_dat[package]['constraints']);
    if(!vcf::is_error(out) && !isnull(out))
    {
      vuln = TRUE;
      report +=
        '\n  Package           : ' + package +
        '\n  Path              : ' + inst[1] +
        '\n  Installed version : ' + inst[0] +
        '\n  Fixed version     : ' + out['fixed_version'] +
        '\n';
    }
  }
}

if(!vuln) audit(AUDIT_INST_VER_NOT_VULN, appname + ' ' + install['version']);

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