Vulnerabilities > CVE-2019-7090 - Out-of-bounds Read vulnerability in Adobe Flash Player and Flash Player Desktop Runtime

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

include("compat.inc");

if (description)
{
  script_id(122117);
  script_version("1.4");
  script_cvs_date("Date: 2019/10/31 15:18:52");

  script_cve_id("CVE-2019-7090");

  script_name(english:"Adobe Flash Player <= 32.0.0.114 (APSB19-06)");
  script_summary(english:"Checks the version of the ActiveX control.");

  script_set_attribute(attribute:"synopsis", value:
"The remote Windows host has a browser plugin installed that is
affected by an information disclosure vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of Adobe Flash Player installed on the remote Windows
host is equal or prior to version 32.0.0.114. It is therefore
affected by an information disclosure vulnerability.");
  script_set_attribute(attribute:"see_also", value:"https://helpx.adobe.com/security/products/flash-player/apsb19-06.html");
  # http://helpx.adobe.com/flash-player/kb/archived-flash-player-versions.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0cb17c10");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Adobe Flash Player version 32.0.0.142 or later.");
  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:N/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-2019-7090");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/02/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/02/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/02/12");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:adobe:flash_player");
  script_end_attributes();

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

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

  script_dependencies("flash_player_installed.nasl");
  script_require_keys("SMB/Flash_Player/installed");

  exit(0);
}

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

get_kb_item_or_exit("SMB/Flash_Player/installed");

# Identify vulnerable versions.
info = "";
variants = make_list(
  "Plugin",
  "ActiveX",
  "Chrome",
  "Chrome_Pepper"
);

# we're checking for versions less than *or equal to* the cutoff!
foreach variant (variants)
{
  vers = get_kb_list("SMB/Flash_Player/"+variant+"/Version/*");
  files = get_kb_list("SMB/Flash_Player/"+variant+"/File/*");

  if (isnull(vers) || isnull(files))
    continue;

  foreach key (keys(vers))
  {
    ver = vers[key];
    if (isnull(ver))
      continue;

    # <= 32.0.0.114
    if (ver_compare(ver:ver,fix:"32.0.0.114",strict:FALSE) <= 0)
    {
      num = key - ("SMB/Flash_Player/"+variant+"/Version/");
      file = files["SMB/Flash_Player/"+variant+"/File/"+num];
      if (variant == "Plugin")
      {
        info += '\n  Product           : Browser Plugin (for Firefox / Netscape / Opera)';
        fix = "32.0.0.142";
      }
      else if (variant == "ActiveX")
      {
        info += '\n  Product           : ActiveX control (for Internet Explorer)';
        fix = "32.0.0.144";
      }
      else if ("Chrome" >< variant)
      {
        info += '\n  Product           : Browser Plugin (for Google Chrome)';
        if (variant == "Chrome")
          fix = "Upgrade to a version of Google Chrome running Flash Player 32.0.0.142";
      }
      info += '\n  Path              : ' + file +
              '\n  Installed version : ' + ver;
      if (variant == "Chrome_Pepper")
        info += '\n  Fixed version     : 32.0.0.142 (Chrome PepperFlash)';
      else if (!isnull(fix))
        info += '\n  Fixed version     : '+fix;
      info += '\n';
    }
  }
}

if (info)
{
  port = get_kb_item("SMB/transport");
  if (!port) port = 445;
  security_report_v4(severity:SECURITY_WARNING, port:port, extra:info);
}
else
{
  if (thorough_tests)
    exit(0, 'No vulnerable versions of Adobe Flash Player were found.');
  else
    exit(1, 'Google Chrome\'s built-in Flash Player may not have been detected because the \'Perform thorough tests\' setting was not enabled.');
}

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

include("compat.inc");

if (description)
{
  script_id(122130);
  script_version("1.5");
  script_cvs_date("Date: 2019/10/31 15:18:52");

  script_cve_id("CVE-2019-7090");
  script_xref(name:"MSKB", value:"4487038");
  script_xref(name:"MSFT", value:"MS19-4487038");

  script_name(english:"KB4487038: Security update for Adobe Flash Player (February 2019)");
  script_summary(english:"Checks the version of the ActiveX control.");

  script_set_attribute(attribute:"synopsis", value:
"The remote Windows host has a browser plugin installed that is
affected by an information disclosure vulnerability.");
  script_set_attribute(attribute:"description", value:
"The remote Windows host is missing security update KB4487038. It is,
therefore, affected by an information disclosure in Adobe Flash Player.");
  script_set_attribute(attribute:"see_also", value:"https://helpx.adobe.com/security/products/flash-player/apsb19-06.html");
  script_set_attribute(attribute:"see_also", value:"https://support.microsoft.com/en-us/help/4487038");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released KB4487038 to address this issue.");
  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:N/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-2019-7090");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/02/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/02/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/02/12");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:adobe:flash_player");
  script_end_attributes();

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

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

  script_dependencies("smb_hotfixes.nasl", "ms_bulletin_checks_possible.nasl");
  script_require_keys("SMB/MS_Bulletin_Checks/Possible");
  script_require_ports(139, 445, "Host/patch_management_checks");

  exit(0);
}

include("audit.inc");
include("smb_func.inc");
include("smb_hotfixes.inc");
include("smb_hotfixes_fcheck.inc");
include("smb_activex_func.inc");

get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");

bulletin = "MS19-02";
kbs = make_list('4487038');
if (get_kb_item("Host/patch_management_checks")) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_WARNING);

get_kb_item_or_exit("SMB/Registry/Enumerated");
get_kb_item_or_exit("SMB/WindowsVersion", exit_code:1);

if (hotfix_check_sp_range(win8:'0', win81:'0', win10:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);
if (hotfix_check_server_core() == 1) audit(AUDIT_WIN_SERVER_CORE);

productname = get_kb_item_or_exit("SMB/ProductName", exit_code:1);
if ("Windows 8" >< productname && "Windows 8.1" >!< productname) audit(AUDIT_OS_SP_NOT_VULN);

if (activex_init() != ACX_OK) audit(AUDIT_FN_FAIL, "activex_init");

# Adobe Flash Player CLSID
clsid = '{D27CDB6E-AE6D-11cf-96B8-444553540000}';

file = activex_get_filename(clsid:clsid);
if (isnull(file))
{
  activex_end();
  audit(AUDIT_FN_FAIL, "activex_get_filename", "NULL");
}
if (!file)
{
  activex_end();
  audit(AUDIT_ACTIVEX_NOT_FOUND, clsid);
}

# Get its version.
version = activex_get_fileversion(clsid:clsid);
if (!version)
{
  activex_end();
  audit(AUDIT_VER_FAIL, file);
}

info = '';

iver = split(version, sep:'.', keep:FALSE);
for (i=0; i<max_index(iver); i++)
 iver[i] = int(iver[i]);
iver = join(iver, sep:".");

# all <= 32.0.0.114
fix = FALSE;
if(ver_compare(ver:iver, fix:"32.0.0.114", strict:FALSE) <= 0)
  fix = "32.0.0.144";

if (
  (report_paranoia > 1 || activex_get_killbit(clsid:clsid) == 0) &&
  fix
)
{
  info = '\n  Path              : ' + file +
         '\n  Installed version : ' + version +
         '\n  Fixed version     : ' + fix +
         '\n';
}

port = kb_smb_transport();

if (info != '')
{
    if (report_paranoia > 1)
    {
      report = info +
        '\n' +
        'Note, though, that Nessus did not check whether the kill bit was\n' +
        "set for the control's CLSID because of the Report Paranoia setting" + '\n' +
        'in effect when this scan was run.\n';
    }
    else
    {
      report = info +
        '\n' +
        'Moreover, its kill bit is not set so it is accessible via Internet\n' +
        'Explorer.\n';
    }
    replace_kb_item(name:"SMB/Missing/"+bulletin, value:TRUE);
    hotfix_add_report(bulletin:'MS19-02', kb:'4487038', report);
    security_report_v4(severity:SECURITY_WARNING, port:port, extra:hotfix_get_report());
}
else audit(AUDIT_HOST_NOT, 'affected');

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2020 Jacques Vidrine and contributors
#
# Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
# HTML, PDF, PostScript, RTF and so forth) with or without modification,
# are permitted provided that the following conditions are met:
# 1. Redistributions of source code (VuXML) must retain the above
#    copyright notice, this list of conditions and the following
#    disclaimer as the first lines of this file unmodified.
# 2. Redistributions in compiled form (transformed to other DTDs,
#    published online in any format, converted to PDF, PostScript,
#    RTF and other formats) must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer
#    in the documentation and/or other materials provided with the
#    distribution.
# 
# THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

include("compat.inc");

if (description)
{
  script_id(122140);
  script_version("1.3");
  script_cvs_date("Date: 2020/02/12");

  script_cve_id("CVE-2019-7090");

  script_name(english:"FreeBSD : Flash Player -- information disclosure (de11a8fb-2eda-11e9-8fb5-6451062f0f7a)");
  script_summary(english:"Checks for updated package in pkg_info output");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote FreeBSD host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Adobe reports :

- This update resolves an out-of-bounds vulnerability that could lead
to information disclosure (CVE-2019-7090)."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://helpx.adobe.com/security/products/flash-player/apsb19-06.html"
  );
  # https://vuxml.freebsd.org/freebsd/de11a8fb-2eda-11e9-8fb5-6451062f0f7a.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?089ccd66"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected package.");
  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: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:freebsd:freebsd:linux-flashplayer");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/02/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/02/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/02/13");
  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:"FreeBSD Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");

  exit(0);
}


include("audit.inc");
include("freebsd_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (pkg_test(save_report:TRUE, pkg:"linux-flashplayer<32.0.0.142")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:pkg_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2019:0348. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(122175);
  script_version("1.6");
  script_cvs_date("Date: 2020/02/12");

  script_cve_id("CVE-2019-7090");
  script_xref(name:"RHSA", value:"2019:0348");

  script_name(english:"RHEL 6 : flash-plugin (RHSA-2019:0348)");
  script_summary(english:"Checks the rpm output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Red Hat host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An update for flash-plugin is now available for Red Hat Enterprise
Linux 6 Supplementary.

Red Hat Product Security has rated this update as having a security
impact of Important. 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.

The flash-plugin package contains a Mozilla Firefox compatible Adobe
Flash Player web browser plug-in.

This update upgrades Flash Player to version 32.0.0.142.

Security Fix(es) :

* flash-plugin: Information Disclosure vulnerability (APSB19-06)
(CVE-2019-7090)

For more details about the security issue(s), including the impact, a
CVSS score, acknowledgments, and other related information, refer to
the CVE page(s) listed in the References section."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://helpx.adobe.com/security/products/flash-player/apsb19-06.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2019:0348"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2019-7090"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected flash-plugin package."
  );
  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: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:flash-plugin");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/05/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/02/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/02/14");
  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:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 6.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);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2019:0348";
  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:"RHEL6", reference:"flash-plugin-32.0.0.142-1.el6_10")) flag++;

  if (flag)
  {
    flash_plugin_caveat = '\n' +
      'NOTE: This vulnerability check only applies to RedHat released\n' +
      'versions of the flash-plugin package. This check does not apply to\n' +
      'Adobe released versions of the flash-plugin package, which are\n' +
      'versioned similarly and cause collisions in detection.\n\n' +

      'If you are certain you are running the Adobe released package of\n' +
      'flash-plugin and are running a version of it equal or higher to the\n' +
      'RedHat version listed above then you can consider this a false\n' +
      'positive.\n';
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get() + redhat_report_package_caveat() + flash_plugin_caveat
    );
    exit(0);
  }
  else
  {
    tested = pkg_tests_get();
    if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
    else audit(AUDIT_PACKAGE_NOT_INSTALLED, "flash-plugin");
  }
}