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nessusThis script is Copyright (C) 2021-2024 and is owned by Tenable, Inc. or an Affiliate thereof.ADOBE_READER_APSB21-29.NASL
HistoryMay 11, 2021 - 12:00 a.m.

Adobe Reader <= 2017.011.30194 / 2020.001.30020 / 2021.001.20150 Multiple Vulnerabilities (APSB21-29)

2021-05-1100:00:00
This script is Copyright (C) 2021-2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
38

8.1 High

AI Score

Confidence

Low

The version of Adobe Reader installed on the remote Windows host is a version prior or equal to 2017.011.30194, 2020.001.30020, or 2021.001.20150. It is, therefore, affected by multiple vulnerabilities, including the following:

  • Out-of-bounds write vulnerabilities that can result in arbitrary code execution. (CVE-2021-21044, CVE-2021-21038, CVE-2021-21086)

  • Use after free vulnerabilities that can result in arbitrary code execution. (CVE-2021-28562, CVE-2021-28550, CVE-2021-28553)

  • An out-of-bounds read vulnerability that can result in a memory leak. (CVE-2021-28557)

Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
##

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(149379);
  script_version("1.13");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/02");

  script_cve_id(
    "CVE-2021-21038",
    "CVE-2021-21044",
    "CVE-2021-21086",
    "CVE-2021-28550",
    "CVE-2021-28553",
    "CVE-2021-28555",
    "CVE-2021-28557",
    "CVE-2021-28558",
    "CVE-2021-28559",
    "CVE-2021-28560",
    "CVE-2021-28561",
    "CVE-2021-28562",
    "CVE-2021-28564",
    "CVE-2021-28565"
  );
  script_xref(name:"IAVA", value:"2021-A-0229-S");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2021/11/17");

  script_name(english:"Adobe Reader <= 2017.011.30194 / 2020.001.30020 / 2021.001.20150 Multiple Vulnerabilities (APSB21-29)");

  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 2017.011.30194,
2020.001.30020, or 2021.001.20150. It is, therefore, affected by multiple vulnerabilities, including the following:

  - Out-of-bounds write vulnerabilities that can result in arbitrary code execution. (CVE-2021-21044,
    CVE-2021-21038, CVE-2021-21086)

  - Use after free vulnerabilities that can result in arbitrary code execution. (CVE-2021-28562,
    CVE-2021-28550, CVE-2021-28553)

  - An out-of-bounds read vulnerability that can result in a memory leak. (CVE-2021-28557)


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/apsb21-29.html");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Adobe Reader version 2017.011.30196 / 2020.001.30025 / 2021.001.20155 or later.");
  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:H/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:H/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-28565");

  script_set_attribute(attribute:"exploitability_ease", value:"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:"2021/02/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/05/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/05/11");

  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) 2021-2024 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' : '15.7', 'max_version' : '21.001.20150', 'fixed_version' : '21.001.20155' },
  { 'min_version' : '20.1', 'max_version' : '20.001.30020', 'fixed_version' : '20.001.30025' },
  { 'min_version' : '17.8', 'max_version' : '17.011.30194', 'fixed_version' : '17.011.30196' }
];
vcf::adobe_reader::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE, max_segs:3);
VendorProductVersionCPE
adobeacrobat_readercpe:/a:adobe:acrobat_reader

References