Vulnerabilities > CVE-2020-9598 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Adobe Acrobat DC
Attack vector
LOCAL Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
NONE Availability impact
NONE Summary
Adobe Acrobat and Reader versions 2020.006.20042 and earlier, 2017.011.30166 and earlier, 2017.011.30166 and earlier, and 2015.006.30518 and earlier have an invalid memory access vulnerability. Successful exploitation could lead to information disclosure.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Buffer Overflow via Environment Variables This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
- Overflow Buffers Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
- Client-side Injection-induced Buffer Overflow This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
- Filter Failure through Buffer Overflow In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
- MIME Conversion An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
Nessus
NASL family Windows NASL id ADOBE_READER_APSB20-24.NASL description 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 last seen 2020-05-18 modified 2020-05-13 plugin id 136563 published 2020-05-13 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/136563 title Adobe Reader <= 2015.006.30518 / 2017.011.30166 / 2020.006.20042 Multiple Vulnerabilities (APSB20-24) code # # (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);
NASL family MacOS X Local Security Checks NASL id MACOS_ADOBE_READER_APSB20-24.NASL description The version of Adobe Reader installed on the remote macOS 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 last seen 2020-05-18 modified 2020-05-13 plugin id 136561 published 2020-05-13 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/136561 title Adobe Reader <= 2015.006.30518 / 2017.011.30166 / 2020.006.20042 Multiple Vulnerabilities (APSB20-24) (macOS) NASL family Windows NASL id ADOBE_ACROBAT_APSB20-24.NASL description The version of Adobe Acrobat 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 last seen 2020-05-18 modified 2020-05-13 plugin id 136562 published 2020-05-13 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/136562 title Adobe Acrobat <= 2015.006.30518 / 2017.011.30166 / 2020.006.20042 Multiple Vulnerabilities (APSB20-24) NASL family MacOS X Local Security Checks NASL id MACOS_ADOBE_ACROBAT_APSB20-24.NASL description The version of Adobe Acrobat installed on the remote macOS 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 last seen 2020-05-18 modified 2020-05-13 plugin id 136560 published 2020-05-13 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/136560 title Adobe Acrobat <= 2015.006.30518 / 2017.011.30166 / 2020.006.20042 Multiple Vulnerabilities (APSB20-24) (macOS)