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nessusThis script is Copyright (C) 2021-2024 and is owned by Tenable, Inc. or an Affiliate thereof.ADOBE_ACROBAT_APSB21-29.NASL
HistoryMay 11, 2021 - 12:00 a.m.

Adobe Acrobat <= 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
87

8 High

AI Score

Confidence

Low

The version of Adobe Acrobat 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.

  • 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(149380);
  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 Acrobat <= 2017.011.30194 / 2020.001.30020 / 2021.001.20150 Multiple Vulnerabilities (APSB21-29)");

  script_set_attribute(attribute:"synopsis", value:
"The version of Adobe Acrobat installed on the remote Windows host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of Adobe Acrobat 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.

  - 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 Acrobat 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");
  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_acrobat_installed.nasl");
  script_require_keys("SMB/Registry/Enumerated", "installed_sw/Adobe Acrobat");

  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 Acrobat', 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);
VendorProductVersion
adobeacrobat

References

8 High

AI Score

Confidence

Low