Vulnerabilities > CVE-2020-9612 - Out-of-bounds Write vulnerability in Adobe Acrobat DC

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

include('compat.inc');

if (description)
{
  script_id(136563);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/07/27");

  script_cve_id(
    "CVE-2020-9592",
    "CVE-2020-9593",
    "CVE-2020-9594",
    "CVE-2020-9595",
    "CVE-2020-9596",
    "CVE-2020-9597",
    "CVE-2020-9598",
    "CVE-2020-9599",
    "CVE-2020-9600",
    "CVE-2020-9601",
    "CVE-2020-9602",
    "CVE-2020-9603",
    "CVE-2020-9604",
    "CVE-2020-9605",
    "CVE-2020-9606",
    "CVE-2020-9607",
    "CVE-2020-9608",
    "CVE-2020-9609",
    "CVE-2020-9610",
    "CVE-2020-9611",
    "CVE-2020-9612",
    "CVE-2020-9613",
    "CVE-2020-9614",
    "CVE-2020-9615"
  );
  script_xref(name:"IAVA", value:"2020-A-0211");

  script_name(english:"Adobe Reader <= 2015.006.30518 / 2017.011.30166 / 2020.006.20042 Multiple Vulnerabilities (APSB20-24)");

  script_set_attribute(attribute:"synopsis", value:
"The version of Adobe Reader installed on the remote Windows host is
affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of Adobe Reader installed on the remote Windows host is a version prior or equal to 2015.006.30518,
2017.011.30166, or 2020.006.20042. It is, therefore, affected by multiple vulnerabilities.

  - Null Pointer potentially leading to Application denial-
    of-service (CVE-2020-9610)

  - Heap Overflow potentially leading to Arbitrary Code
    Execution (CVE-2020-9612)

  - Race Condition potentially leading to Security feature
    bypass (CVE-2020-9615)

  - Out-of-bounds write potentially leading to Arbitrary
    Code Execution (CVE-2020-9594, CVE-2020-9597)

  - Security bypass potentially leading to Security feature
    bypass (CVE-2020-9592, CVE-2020-9596, CVE-2020-9613,
    CVE-2020-9614)

  - Stack exhaustion potentially leading to Application
    denial-of-service (CVE-2020-9611)

  - Out-of-bounds read potentially leading to Information
    disclosure (CVE-2020-9599, CVE-2020-9600, CVE-2020-9601,
    CVE-2020-9602, CVE-2020-9603, CVE-2020-9608,
    CVE-2020-9609)

  - Buffer error potentially leading to Arbitrary Code
    Execution (CVE-2020-9604, CVE-2020-9605)

  - Use-after-free potentially leading to Arbitrary Code
    Execution (CVE-2020-9606, CVE-2020-9607)

  - Invalid memory access potentially leading to Information
    disclosure (CVE-2020-9593, CVE-2020-9595, CVE-2020-9598)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://helpx.adobe.com/security/products/acrobat/apsb20-24.html");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Adobe Reader version 2015.006.30523 or 2017.011.30171 or 2020.009.20063 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/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-2020-9614");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/05/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/05/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/05/13");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:adobe:acrobat_reader");
  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("adobe_reader_installed.nasl");
  script_require_keys("SMB/Registry/Enumerated", "installed_sw/Adobe Reader");

  exit(0);
}

include('vcf.inc');
include('vcf_extras.inc');

get_kb_item_or_exit('SMB/Registry/Enumerated');
app_info = vcf::get_app_info(app:'Adobe Reader', win_local:TRUE);

# vcf::adobe_reader::check_version_and_report will
# properly separate tracks when checking constraints.
# x.y.30zzz = DC Classic
# x.y.20zzz = DC Continuous
constraints = [
  { 'min_version' : '15.6', 'max_version' : '15.006.30518', 'fixed_version' : '15.006.30523' },
  { 'min_version' : '17.8', 'max_version' : '17.011.30166', 'fixed_version' : '17.011.30171' },
  { 'min_version' : '15.7', 'max_version' : '20.006.20042', 'fixed_version' : '20.009.20063' }
];
vcf::adobe_reader::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING, max_segs:3);