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HistoryMar 29, 2022 - 12:00 a.m.

Adobe Acrobat Classic 2020 Security Update (APSB21-29) - Windows

2022-03-2900:00:00
Copyright (C) 2022 Greenbone Networks GmbH
plugins.openvas.org
12
adobe acrobat classic 2020
security update
apsb21-29
windows
multiple vulnerabilities
buffer overflow errors
use-after-free error
out-of-bounds read/write errors
privilege escalation
cve-2021-28561
cve-2021-28560
cve-2021-28558
cve-2021-28557
cve-2021-28555
cve-2021-28565
cve-2021-28564
cve-2021-21044
cve-2021-21038
cve-2021-28559
cve-2021-28562
cve-2021-28550
cve-2021-28553
cvss base 9.3
arbitrary code execution
sensitive information disclosure
privilege escalation vulnerability
upgrade
vendorfix
registry
security update.

CVSS2

9.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

AI Score

7

Confidence

Low

EPSS

0.409

Percentile

97.4%

Adobe Acrobat Classic 2020 is prone to multiple vulnerabilities.

# Copyright (C) 2022 Greenbone Networks GmbH
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

CPE = "cpe:/a:adobe:acrobat_dc_classic";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.818887");
  script_version("2022-08-09T10:11:17+0000");
  script_xref(name:"CISA", value:"Known Exploited Vulnerability (KEV) catalog");
  script_xref(name:"URL", value:"https://www.cisa.gov/known-exploited-vulnerabilities-catalog");
  script_cve_id("CVE-2021-28561", "CVE-2021-28560", "CVE-2021-28558", "CVE-2021-28557",
                "CVE-2021-28555", "CVE-2021-28565", "CVE-2021-28564", "CVE-2021-21044",
                "CVE-2021-21038", "CVE-2021-28559", "CVE-2021-28562", "CVE-2021-28550",
                "CVE-2021-28553");
  script_tag(name:"cvss_base", value:"9.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_tag(name:"last_modification", value:"2022-08-09 10:11:17 +0000 (Tue, 09 Aug 2022)");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-09-15 13:26:00 +0000 (Wed, 15 Sep 2021)");
  script_tag(name:"creation_date", value:"2022-03-29 17:17:58 +0530 (Tue, 29 Mar 2022)");
  script_name("Adobe Acrobat Classic 2020 Security Update (APSB21-29) - Windows");

  script_tag(name:"summary", value:"Adobe Acrobat Classic 2020 is prone to multiple vulnerabilities.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present
  on the target host.");

  script_tag(name:"insight", value:"Multiple flaws are due to:

  - Multiple buffer overflow errors.

  - An use-after-free error.

  - Multiple out-of-bounds read/write errors.

  - Privilege escalation error");

  script_tag(name:"impact", value:"Successful exploitation will allow attackers
  to execute arbitrary code, diclose sensitive information and escalate privileges.");

  script_tag(name:"affected", value:"Adobe Acrobat Classic 2020 prior to version
  2020.001.30025 on Windows.");

  script_tag(name:"solution", value:"Upgrade to Adobe Acrobat Classic 2020 version
  2020.001.30025 or later. Please see the references for more information.");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"registry");
  script_xref(name:"URL", value:"https://helpx.adobe.com/security/products/acrobat/apsb21-29.html");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2022 Greenbone Networks GmbH");
  script_family("General");
  script_dependencies("gb_adobe_acrobat_dc_classic_detect_win.nasl");
  script_mandatory_keys("Adobe/AcrobatDC/Classic/Win/Ver");
  exit(0);
}
include("host_details.inc");
include("version_func.inc");

if(!infos = get_app_version_and_location(cpe:CPE, exit_no_version:TRUE)) exit(0);
vers = infos['version'];
path = infos['location'];

if(version_in_range(version:vers, test_version:"20.0", test_version2:"20.001.30020"))
{
  report = report_fixed_ver(installed_version:vers, fixed_version:"20.001.30025(2020.001.30025)", install_path:path);
  security_message(data:report);
  exit(0);
}
exit(99);

CVSS2

9.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

AI Score

7

Confidence

Low

EPSS

0.409

Percentile

97.4%