Vulnerabilities > CVE-2020-0603 - Out-of-bounds Write vulnerability in multiple products

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2020:0134. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(133124);
  script_version("1.2");
  script_cvs_date("Date: 2020/01/23");

  script_cve_id("CVE-2020-0602", "CVE-2020-0603");
  script_xref(name:"RHSA", value:"2020:0134");

  script_name(english:"RHEL 7 : dotNET (RHSA-2020:0134)");
  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:
"An update for rh-dotnet30-dotnet and rh-dotnet31-dotnet is now
available for .NET Core on Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security
impact of Critical. 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 SDK 3.0.102, .NET
Core Runtime 3.0.2, .NET Core SDK 3.1.101 and .NET Core Runtime 3.1.1.

Security Fixes :

* dotnet: Memory Corruption in SignalR (CVE-2020-0603)

* dotnet: SignalR Denial of Service via backpressure issue
(CVE-2020-0602)

Users must rebuild their applications to pick up the fixes.

Default inclusions for applications built with .NET Core have been
updated to reference the newest versions and their security fixes.

For more details about the security issues, including the impact, a
CVSS score, acknowledgments, and other related information, refer to
the CVE pages listed in the References section."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2020:0134"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2020-0602"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2020-0603"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  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:"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-dotnet30-aspnetcore-runtime-3.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet30-aspnetcore-targeting-pack-3.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet30-dotnet");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet30-dotnet-apphost-pack-3.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet30-dotnet-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet30-dotnet-host");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet30-dotnet-hostfxr-3.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet30-dotnet-runtime-3.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet30-dotnet-sdk-3.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet30-dotnet-targeting-pack-3.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet30-dotnet-templates-3.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet30-netstandard-targeting-pack-2.1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet31-aspnetcore-runtime-3.1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet31-aspnetcore-targeting-pack-3.1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet31-dotnet");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet31-dotnet-apphost-pack-3.1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet31-dotnet-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet31-dotnet-host");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet31-dotnet-hostfxr-3.1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet31-dotnet-runtime-3.1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet31-dotnet-sdk-3.1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet31-dotnet-targeting-pack-3.1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet31-dotnet-templates-3.1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rh-dotnet31-netstandard-targeting-pack-2.1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/01/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/01/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/01/21");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 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-2020:0134";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      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-dotnet30-aspnetcore-runtime-3.0-3.0.2-3.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet30-aspnetcore-targeting-pack-3.0-3.0.2-3.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet30-dotnet-3.0.102-3.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet30-dotnet-apphost-pack-3.0-3.0.2-3.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet30-dotnet-debuginfo-3.0.102-3.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet30-dotnet-host-3.0.2-3.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet30-dotnet-hostfxr-3.0-3.0.2-3.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet30-dotnet-runtime-3.0-3.0.2-3.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet30-dotnet-sdk-3.0-3.0.102-3.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet30-dotnet-targeting-pack-3.0-3.0.2-3.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet30-dotnet-templates-3.0-3.0.102-3.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet30-netstandard-targeting-pack-2.1-3.0.102-3.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet31-aspnetcore-runtime-3.1-3.1.1-4.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet31-aspnetcore-targeting-pack-3.1-3.1.1-4.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet31-dotnet-3.1.101-4.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet31-dotnet-apphost-pack-3.1-3.1.1-4.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet31-dotnet-debuginfo-3.1.101-4.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet31-dotnet-host-3.1.1-4.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet31-dotnet-hostfxr-3.1-3.1.1-4.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet31-dotnet-runtime-3.1-3.1.1-4.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet31-dotnet-sdk-3.1-3.1.101-4.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet31-dotnet-targeting-pack-3.1-3.1.1-4.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet31-dotnet-templates-3.1-3.1.101-4.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"rh-dotnet31-netstandard-targeting-pack-2.1-3.1.101-4.el7")) flag++;

  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      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-dotnet30-aspnetcore-runtime-3.0 / etc");
  }
}

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

include('compat.inc');

if (description)
{
  script_id(133049);
  script_version("1.2");
  script_cvs_date("Date: 2020/01/20");

  script_cve_id("CVE-2020-0602", "CVE-2020-0603");
  script_xref(name:"IAVA", value:"2020-A-0027");

  script_name(english:"Security Update for Microsoft ASP.NET Core (January 2020)");
  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 < 2.1.15, 3.0.x < 3.0.2, or 3.1.x < 3.1.1.
It is, therefore, affected by multiple vulnerabilities:

  - A denial of service vulnerability exists when ASP.NET Core improperly handles web requests. An attacker who
    successfully exploited this vulnerability could cause a denial of service against an ASP.NET Core web application.
    The vulnerability can be exploited remotely, without authentication. A remote unauthenticated attacker could
    exploit this vulnerability by issuing specially crafted requests to the ASP.NET Core application. (CVE-2020-0602)

  - A remote code execution vulnerability exists in ASP.NET Core software when the software fails to handle objects in
    memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the
    current user. If the current user is logged on with administrative user rights, an attacker could take control of
    the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts
    with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less
    impacted than users who operate with administrative user rights. (CVE-2020-0603)");
  # https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0602
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?530ba67f");
  # https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0603
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?374d2043");
  script_set_attribute(attribute:"see_also", value:"https://github.com/aspnet/Announcements/issues/402");
  script_set_attribute(attribute:"see_also", value:"https://github.com/aspnet/Announcements/issues/403");
  script_set_attribute(attribute:"see_also", value:"https://github.com/dotnet/aspnetcore/issues/18336");
  script_set_attribute(attribute:"see_also", value:"https://github.com/dotnet/aspnetcore/issues/18337");
  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:M/Au:N/C:C/I:C/A:C");
  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-2020-0603");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/01/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/01/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/01/17");

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

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

  script_copyright(english:"This script is Copyright (C) 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' : '2.1.15' }
    ]
  },
  'Microsoft.AspNetCore.App':{
    'constraints':[
      { 'min_version' : '2.1.0', 'fixed_version' : '2.1.15' },
      { 'min_version' : '3.0.0', 'fixed_version' : '3.0.1' },
      { 'min_version' : '3.1.0', 'fixed_version' : '3.1.1' }
    ]
  },
  'Microsoft.AspNetCore.Http.Connections':{
    'constraints':[
      { 'min_version' : '1.0.0', 'max_version' : '1.0.4', 'fixed_version' : '1.0.15' }
    ]
  }
};

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_HOLE, extra:report);

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2020:0130. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(133028);
  script_version("1.2");
  script_cvs_date("Date: 2020/01/21");

  script_cve_id("CVE-2020-0602", "CVE-2020-0603");
  script_xref(name:"RHSA", value:"2020:0130");

  script_name(english:"RHEL 8 : .NET Core on Red Hat Enterprise Linux (RHSA-2020:0130)");
  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:
"An update for dotnet3.0 is now available for Red Hat Enterprise Linux
8.

Red Hat Product Security has rated this update as having a security
impact of Critical. 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 SDK 3.0.102 and .NET
Core Runtime 3.0.2.

Security Fixes :

* dotnet: Memory Corruption in SignalR (CVE-2020-0603)

* dotnet: SignalR Denial of Service via backpressure issue
(CVE-2020-0602)

Default inclusions for applications built with .NET Core have been
updated to reference the newest versions and their security fixes.

For more details about the security issues, including the impact, a
CVSS score, acknowledgments, and other related information, refer to
the CVE pages listed in the References section."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2020:0130"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2020-0602"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2020-0603"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  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-2020-0603");
  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:aspnetcore-runtime-3.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:aspnetcore-targeting-pack-3.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dotnet");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dotnet-apphost-pack-3.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dotnet-apphost-pack-3.0-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dotnet-host");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dotnet-host-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dotnet-hostfxr-3.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dotnet-hostfxr-3.0-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dotnet-runtime-3.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dotnet-runtime-3.0-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-3.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dotnet-sdk-3.0-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dotnet-targeting-pack-3.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dotnet-templates-3.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dotnet3.0-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:dotnet3.0-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:netstandard-targeting-pack-2.1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:8.1");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/01/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/01/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/01/17");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 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:"^8([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 8.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-2020:0130";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      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:"RHEL8", cpu:"x86_64", reference:"aspnetcore-runtime-3.0-3.0.2-2.el8_1")) flag++;

  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"aspnetcore-targeting-pack-3.0-3.0.2-2.el8_1")) flag++;

  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"dotnet-3.0.102-2.el8_1")) flag++;

  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"dotnet-apphost-pack-3.0-3.0.2-2.el8_1")) flag++;

  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"dotnet-apphost-pack-3.0-debuginfo-3.0.2-2.el8_1")) flag++;

  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"dotnet-host-3.0.2-2.el8_1")) flag++;

  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"dotnet-host-debuginfo-3.0.2-2.el8_1")) flag++;

  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"dotnet-hostfxr-3.0-3.0.2-2.el8_1")) flag++;

  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"dotnet-hostfxr-3.0-debuginfo-3.0.2-2.el8_1")) flag++;

  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"dotnet-runtime-3.0-3.0.2-2.el8_1")) flag++;

  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"dotnet-runtime-3.0-debuginfo-3.0.2-2.el8_1")) flag++;

  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"dotnet-sdk-3.0-3.0.102-2.el8_1")) flag++;

  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"dotnet-sdk-3.0-debuginfo-3.0.102-2.el8_1")) flag++;

  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"dotnet-targeting-pack-3.0-3.0.2-2.el8_1")) flag++;

  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"dotnet-templates-3.0-3.0.102-2.el8_1")) flag++;

  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"dotnet3.0-debuginfo-3.0.102-2.el8_1")) flag++;

  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"dotnet3.0-debugsource-3.0.102-2.el8_1")) flag++;

  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"netstandard-targeting-pack-2.1-3.0.102-2.el8_1")) flag++;


  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      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, "aspnetcore-runtime-3.0 / aspnetcore-targeting-pack-3.0 / dotnet / etc");
  }
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2020:0130 and 
# Oracle Linux Security Advisory ELSA-2020-0130 respectively.
#

include("compat.inc");

if (description)
{
  script_id(133123);
  script_version("1.2");
  script_cvs_date("Date: 2020/01/23");

  script_cve_id("CVE-2020-0602", "CVE-2020-0603");
  script_xref(name:"RHSA", value:"2020:0130");

  script_name(english:"Oracle Linux 8 : .NET / Core / Enterprise / Hat / Linux / Red / on (ELSA-2020-0130)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Oracle Linux host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"From Red Hat Security Advisory 2020:0130 :

An update for dotnet3.0 is now available for Red Hat Enterprise Linux
8.

Red Hat Product Security has rated this update as having a security
impact of Critical. 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 SDK 3.0.102 and .NET
Core Runtime 3.0.2.

Security Fixes :

* dotnet: Memory Corruption in SignalR (CVE-2020-0603)

* dotnet: SignalR Denial of Service via backpressure issue
(CVE-2020-0602)

Default inclusions for applications built with .NET Core have been
updated to reference the newest versions and their security fixes.

For more details about the security issues, including the impact, a
CVSS score, acknowledgments, and other related information, refer to
the CVE pages listed in the References section."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2020-January/009530.html"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  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:"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:oracle:linux:aspnetcore-runtime-3.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:aspnetcore-targeting-pack-3.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:dotnet");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:dotnet-apphost-pack-3.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:dotnet-host");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:dotnet-hostfxr-3.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:dotnet-runtime-3.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:dotnet-sdk-3.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:dotnet-targeting-pack-3.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:dotnet-templates-3.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:netstandard-targeting-pack-2.1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:8");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/01/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/01/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/01/21");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

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

  exit(0);
}


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


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux");
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux");
os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^8([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 8", "Oracle Linux " + 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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Oracle Linux", cpu);
if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);

flag = 0;
if (rpm_check(release:"EL8", cpu:"x86_64", reference:"aspnetcore-runtime-3.0-3.0.2-2.0.1.el8_1")) flag++;
if (rpm_check(release:"EL8", cpu:"x86_64", reference:"aspnetcore-targeting-pack-3.0-3.0.2-2.0.1.el8_1")) flag++;
if (rpm_check(release:"EL8", cpu:"x86_64", reference:"dotnet-3.0.102-2.0.1.el8_1")) flag++;
if (rpm_check(release:"EL8", cpu:"x86_64", reference:"dotnet-apphost-pack-3.0-3.0.2-2.0.1.el8_1")) flag++;
if (rpm_check(release:"EL8", cpu:"x86_64", reference:"dotnet-host-3.0.2-2.0.1.el8_1")) flag++;
if (rpm_check(release:"EL8", cpu:"x86_64", reference:"dotnet-hostfxr-3.0-3.0.2-2.0.1.el8_1")) flag++;
if (rpm_check(release:"EL8", cpu:"x86_64", reference:"dotnet-runtime-3.0-3.0.2-2.0.1.el8_1")) flag++;
if (rpm_check(release:"EL8", cpu:"x86_64", reference:"dotnet-sdk-3.0-3.0.102-2.0.1.el8_1")) flag++;
if (rpm_check(release:"EL8", cpu:"x86_64", reference:"dotnet-targeting-pack-3.0-3.0.2-2.0.1.el8_1")) flag++;
if (rpm_check(release:"EL8", cpu:"x86_64", reference:"dotnet-templates-3.0-3.0.102-2.0.1.el8_1")) flag++;
if (rpm_check(release:"EL8", cpu:"x86_64", reference:"netstandard-targeting-pack-2.1-3.0.102-2.0.1.el8_1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "aspnetcore-runtime-3.0 / aspnetcore-targeting-pack-3.0 / dotnet / etc");
}

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

include('compat.inc');

if (description)
{
  script_id(132994);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/15");

  script_cve_id(
    "CVE-2020-0602",
    "CVE-2020-0603",
    "CVE-2020-0605",
    "CVE-2020-0606"
  );
  script_xref(name:"IAVA", value:"2020-A-0031-S");

  script_name(english:"Security Update for .NET Core SDK (January 2020)");
  script_summary(english:"Checks for Windows Install of .NET Core SDK.");

  script_set_attribute(attribute:"synopsis", value:
"The remote Windows host is affected by multiple .NET Core SDK vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The Microsoft .NET Core SDK installation on the remote host is version 2.1.x < 2.1.511 or 2.1.608, 3.0.x < 3.0.102, or
3.1.x < 3.1.101. It is, therefore, affected by multiple vulnerabilities:

  - A denial of service vulnerability exists when ASP.NET Core improperly handles web requests. An attacker who
    successfully exploited this vulnerability could cause a denial of service against an ASP.NET Core web application.
    The vulnerability can be exploited remotely, without authentication. A remote unauthenticated attacker could
    exploit this vulnerability by issuing specially crafted requests to the ASP.NET Core application. (CVE-2020-0602)

  - A remote code execution vulnerability exists in ASP.NET Core software when the software fails to handle objects in
    memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the
    current user. If the current user is logged on with administrative user rights, an attacker could take control of
    the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts
    with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less
    impacted than users who operate with administrative user rights. (CVE-2020-0603)

  - A remote code execution vulnerability exists in .NET software when the software fails to check the source markup of
    a file. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the
    current user. If the current user is logged on with administrative user rights, an attacker could take control of
    the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts
    with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less
    impacted than users who operate with administrative user rights. (CVE-2020-0605, CVE-2020-0606)");
  # https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0605
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4e287012");
  # https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0606
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?fa0a6c3c");
  script_set_attribute(attribute:"see_also", value:"https://github.com/dotnet/announcements/issues/148");
  script_set_attribute(attribute:"see_also", value:"https://github.com/dotnet/announcements/issues/149");
  # https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0602
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?530ba67f");
  # https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0603
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?374d2043");
  script_set_attribute(attribute:"see_also", value:"https://github.com/aspnet/Announcements/issues/402");
  script_set_attribute(attribute:"see_also", value:"https://github.com/aspnet/Announcements/issues/403");
  script_set_attribute(attribute:"see_also", value:"https://github.com/dotnet/aspnetcore/issues/18336");
  script_set_attribute(attribute:"see_also", value:"https://github.com/dotnet/aspnetcore/issues/18337");
  script_set_attribute(attribute:"solution", value:
"Refer to vendor documentation.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  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-2020-0606");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/01/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/01/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/01/16");

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

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

  script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("microsoft_dotnet_core_sdk_win.nbin");
  script_require_keys("installed_sw/.NET Core SDK Windows", "Settings/ParanoidReport");
  script_require_ports(139, 445);

  exit(0);
}

include('vcf.inc');

if (report_paranoia < 2) audit(AUDIT_PARANOID);

app = '.NET Core SDK Windows';

app_info = vcf::get_app_info(app:app, win_local:TRUE);

constraints = [
  { 'min_version' : '2.1', 'fixed_version' : '2.1.511' },
  { 'min_version' : '2.1.600', 'fixed_version' : '2.1.608'},
  { 'min_version' : '3.0.0', 'fixed_version' : '3.0.102' },
  { 'min_version' : '3.1.0', 'fixed_version' : '3.1.101' }
];

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