Vulnerabilities > CVE-2019-6208 - Improper Initialization vulnerability in Apple Iphone OS, mac OS X and TV OS
Attack vector
NETWORK Attack complexity
MEDIUM Privileges required
NONE Confidentiality impact
NONE Integrity impact
PARTIAL Availability impact
NONE Summary
A memory initialization issue was addressed with improved memory handling. This issue is fixed in iOS 12.1.3, macOS Mojave 10.14.3, tvOS 12.1.2. A malicious application may cause unexpected changes in memory shared between processes.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Leveraging Race Conditions This attack targets a race condition occurring when multiple processes access and manipulate the same resource concurrently and the outcome of the execution depends on the particular order in which the access takes place. The attacker can leverage a race condition by "running the race", modifying the resource and modifying the normal execution flow. For instance a race condition can occur while accessing a file, the attacker can trick the system by replacing the original file with his version and cause the system to read the malicious file.
- Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions This attack targets a race condition occurring between the time of check (state) for a resource and the time of use of a resource. The typical example is the file access. The attacker can leverage a file access race condition by "running the race", meaning that he would modify the resource between the first time the target program accesses the file and the time the target program uses the file. During that period of time, the attacker could do something such as replace the file and cause an escalation of privilege.
Exploit-Db
file | exploits/macos/dos/46296.c |
id | EDB-ID:46296 |
last seen | 2019-01-31 |
modified | 2019-01-31 |
platform | macos |
port | |
published | 2019-01-31 |
reporter | Exploit-DB |
source | https://www.exploit-db.com/download/46296 |
title | macOS XNU - Copy-on-Write Behaviour Bypass via Partial-Page Truncation of File |
type | dos |
Nessus
NASL family MacOS X Local Security Checks NASL id MACOS_10_14_3.NASL description The remote host is running a version of macOS / Mac OS X that is 10.14.x prior to 10.14.3. It is, therefore, affected by multiple vulnerabilities related to the following components: - AppleKeyStore - Bluetooth - Core Media - CoreAnimation - FaceTime - IOKit - Kernel - libxpc - Natural Language Processing - QuartzCore - SQLite - WebRTC Note that successful exploitation of the most serious issues can result in arbitrary code execution. last seen 2020-06-01 modified 2020-06-02 plugin id 121393 published 2019-01-25 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/121393 title macOS 10.14.x < 10.14.3 Multiple Vulnerabilities code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(121393); script_version("1.5"); script_cvs_date("Date: 2019/10/31 15:18:51"); script_cve_id( "CVE-2018-20346", "CVE-2018-20505", "CVE-2018-20506", "CVE-2019-6200", "CVE-2019-6202", "CVE-2019-6205", "CVE-2019-6208", "CVE-2019-6209", "CVE-2019-6210", "CVE-2019-6211", "CVE-2019-6213", "CVE-2019-6214", "CVE-2019-6218", "CVE-2019-6219", "CVE-2019-6220", "CVE-2019-6221", "CVE-2019-6224", "CVE-2019-6225", "CVE-2019-6230", "CVE-2019-6231", "CVE-2019-6235" ); script_bugtraq_id(106323, 106693, 106694); script_xref(name:"APPLE-SA", value:"APPLE-SA-2019-1-22-2"); script_name(english:"macOS 10.14.x < 10.14.3 Multiple Vulnerabilities"); script_summary(english:"Checks the version of Mac OS X / macOS."); script_set_attribute(attribute:"synopsis", value: "The remote host is missing a macOS update that fixes multiple security vulnerabilities."); script_set_attribute(attribute:"description", value: "The remote host is running a version of macOS / Mac OS X that is 10.14.x prior to 10.14.3. It is, therefore, affected by multiple vulnerabilities related to the following components: - AppleKeyStore - Bluetooth - Core Media - CoreAnimation - FaceTime - IOKit - Kernel - libxpc - Natural Language Processing - QuartzCore - SQLite - WebRTC Note that successful exploitation of the most serious issues can result in arbitrary code execution."); script_set_attribute(attribute:"see_also", value:"https://support.apple.com/en-us/HT209446"); # https://lists.apple.com/archives/security-announce/2019/Jan/msg00001.html script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a77b9bea"); script_set_attribute(attribute:"solution", value: "Upgrade to macOS version 10.14.3 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:L/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-2019-6218"); 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:"2019/01/22"); script_set_attribute(attribute:"patch_publication_date", value:"2019/01/22"); script_set_attribute(attribute:"plugin_publication_date", value:"2019/01/25"); script_set_attribute(attribute:"plugin_type", value:"combined"); script_set_attribute(attribute:"cpe", value:"cpe:/o:apple:mac_os_x"); script_set_attribute(attribute:"cpe", value:"cpe:/o:apple:macos"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_family(english:"MacOS X Local Security Checks"); script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_dependencies("ssh_get_info.nasl", "os_fingerprint.nasl"); script_require_ports("Host/MacOSX/Version", "Host/OS"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("misc_func.inc"); fix = "10.14.3"; minver = "10.14"; os = get_kb_item("Host/MacOSX/Version"); if (!os) { os = get_kb_item_or_exit("Host/OS"); if ("Mac OS X" >!< os) audit(AUDIT_OS_NOT, "macOS / Mac OS X"); c = get_kb_item("Host/OS/Confidence"); if (c <= 70) exit(1, "Can't determine the host's OS with sufficient confidence."); } if (!os) audit(AUDIT_OS_NOT, "macOS / Mac OS X"); matches = pregmatch(pattern:"Mac OS X ([0-9]+(\.[0-9]+)+)", string:os); if (empty_or_null(matches)) exit(1, "Failed to parse the macOS / Mac OS X version ('" + os + "')."); version = matches[1]; if (ver_compare(ver:version, minver:minver, fix:fix, strict:FALSE) == -1) { security_report_v4( port:0, severity:SECURITY_HOLE, extra: '\n Installed version : ' + version + '\n Fixed version : ' + fix + '\n' ); } else audit(AUDIT_INST_VER_NOT_VULN, "macOS / Mac OS X", version);
NASL family MacOS X Local Security Checks NASL id MACOSX_SECUPD_10_13_6_2019-001.NASL description The remote host is running macOS 10.13.6 and is missing a security update. It is therefore, affected by multiple vulnerabilities in the following components: - Bluetooth - Core Media - CoreAnimation - FaceTime - Hypervisor - Intel Graphics Driver - IOKit - Kernel - libxpc - QuartzCore last seen 2020-03-18 modified 2019-01-25 plugin id 121392 published 2019-01-25 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/121392 title macOS 10.13.6 Multiple Vulnerabilities (Security Update 2019-001) code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(121392); script_version("1.6"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/13"); script_cve_id( "CVE-2018-4452", "CVE-2018-4467", "CVE-2019-6200", "CVE-2019-6202", "CVE-2019-6205", "CVE-2019-6208", "CVE-2019-6209", "CVE-2019-6210", "CVE-2019-6213", "CVE-2019-6214", "CVE-2019-6218", "CVE-2019-6220", "CVE-2019-6221", "CVE-2019-6224", "CVE-2019-6225", "CVE-2019-6230", "CVE-2019-6231" ); script_bugtraq_id(106693, 106694); script_xref(name:"APPLE-SA", value:"APPLE-SA-2019-1-22-2"); script_name(english:"macOS 10.13.6 Multiple Vulnerabilities (Security Update 2019-001)"); script_summary(english:"Checks for the presence of Security Update 2019-001"); script_set_attribute(attribute:"synopsis", value: "The remote host is missing a macOS security update that fixes multiple vulnerabilities."); script_set_attribute(attribute:"description", value: "The remote host is running macOS 10.13.6 and is missing a security update. It is therefore, affected by multiple vulnerabilities in the following components: - Bluetooth - Core Media - CoreAnimation - FaceTime - Hypervisor - Intel Graphics Driver - IOKit - Kernel - libxpc - QuartzCore"); script_set_attribute(attribute:"see_also", value:"https://support.apple.com/en-us/HT209446"); # https://lists.apple.com/archives/security-announce/2019/Jan/msg00001.html script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a77b9bea"); script_set_attribute(attribute:"solution", value: "Install Security Update 2019-001 or later for 10.13.6."); 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:L/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-2019-6218"); 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:"2019/01/22"); script_set_attribute(attribute:"patch_publication_date", value:"2019/01/22"); script_set_attribute(attribute:"plugin_publication_date", value:"2019/01/25"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"cpe:/o:apple:mac_os_x"); script_set_attribute(attribute:"cpe", value:"cpe:/o:apple:macos"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_family(english:"MacOS X Local Security Checks"); script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/MacOSX/Version", "Host/MacOSX/packages/boms"); exit(0); } include('lists.inc'); include('vcf.inc'); include('vcf_extras_apple.inc'); app_info = vcf::apple::macos::get_app_info(); constraints = [ { 'min_version' : '10.13', 'max_version' : '10.13.6', 'fixed_build': '17G5019', 'fixed_display' : '10.13.6 Security Update 2019-001' } ]; vcf::apple::macos::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE);
NASL family MacOS X Local Security Checks NASL id MACOSX_SECUPD2019-001.NASL description The remote host is running Mac OS X 10.12.6 and is missing a security update. It is therefore, affected by multiple vulnerabilities in the following components: - CoreAnimation - Hypervisor - Intel Graphics Driver - IOKit - Kernel - libxpc - QuartzCore last seen 2020-06-01 modified 2020-06-02 plugin id 121391 published 2019-01-25 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/121391 title macOS and Mac OS X Multiple Vulnerabilities (Security Update 2019-001) code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(121391); script_version("1.5"); script_cvs_date("Date: 2019/10/31 15:18:51"); script_cve_id( "CVE-2018-4452", "CVE-2018-4467", "CVE-2019-6205", "CVE-2019-6208", "CVE-2019-6209", "CVE-2019-6210", "CVE-2019-6213", "CVE-2019-6214", "CVE-2019-6218", "CVE-2019-6220", "CVE-2019-6224", "CVE-2019-6225", "CVE-2019-6230", "CVE-2019-6231" ); script_bugtraq_id(106693); script_xref(name:"APPLE-SA", value:"APPLE-SA-2019-1-22-2"); script_name(english:"macOS and Mac OS X Multiple Vulnerabilities (Security Update 2019-001)"); script_summary(english:"Checks for the presence of Security Update 2019-001."); script_set_attribute(attribute:"synopsis", value: "The remote host is missing a macOS or Mac OS X security update that fixes multiple vulnerabilities."); script_set_attribute(attribute:"description", value: "The remote host is running Mac OS X 10.12.6 and is missing a security update. It is therefore, affected by multiple vulnerabilities in the following components: - CoreAnimation - Hypervisor - Intel Graphics Driver - IOKit - Kernel - libxpc - QuartzCore"); script_set_attribute(attribute:"see_also", value:"https://support.apple.com/en-us/HT209446"); # https://lists.apple.com/archives/security-announce/2019/Jan/msg00001.html script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a77b9bea"); script_set_attribute(attribute:"solution", value: "Install Security Update 2019-001 or later for 10.12.x."); 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:L/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-2019-6218"); 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:"2019/01/22"); script_set_attribute(attribute:"patch_publication_date", value:"2019/01/22"); script_set_attribute(attribute:"plugin_publication_date", value:"2019/01/25"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"cpe:/o:apple:mac_os_x"); script_set_attribute(attribute:"cpe", value:"cpe:/o:apple:macos"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_family(english:"MacOS X Local Security Checks"); script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/MacOSX/Version", "Host/MacOSX/packages/boms"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("misc_func.inc"); # Compare 2 patch numbers to determine if patch requirements are satisfied. # Return true if this patch or a later patch is applied # Return false otherwise function check_patch(year, number) { local_var p_split = split(patch, sep:"-"); local_var p_year = int( p_split[0]); local_var p_num = int( p_split[1]); if (year > p_year) return TRUE; else if (year < p_year) return FALSE; else if (number >= p_num) return TRUE; else return FALSE; } get_kb_item_or_exit("Host/local_checks_enabled"); os = get_kb_item_or_exit("Host/MacOSX/Version"); if (!preg(pattern:"Mac OS X 10\.12\.6([^0-9]|$)", string:os)) audit(AUDIT_OS_NOT, "Mac OS X 10.12.6"); patch = "2019-001"; packages = get_kb_item_or_exit("Host/MacOSX/packages/boms", exit_code:1); sec_boms_report = pgrep( pattern:"^com\.apple\.pkg\.update\.(security\.|os\.SecUpd).*bom$", string:packages ); sec_boms = split(sec_boms_report, sep:'\n'); foreach package (sec_boms) { # Grab patch year and number matches = pregmatch(pattern:"[^0-9](20[0-9][0-9])[-.]([0-9]{3})[^0-9]", string:package); if (empty_or_null(matches)) continue; if (empty_or_null(matches[1]) || empty_or_null(matches[2])) continue; patch_found = check_patch(year:int(matches[1]), number:int(matches[2])); if (patch_found) exit(0, "The host has Security Update " + patch + " or later installed and is therefore not affected."); } report = '\n Missing security update : ' + patch; report += '\n Installed security BOMs : '; if (sec_boms_report) report += str_replace(find:'\n', replace:'\n ', string:sec_boms_report); else report += 'n/a'; report += '\n'; security_report_v4(port:0, severity:SECURITY_HOLE, extra:report);
The Hacker News
id | THN:A705D78F24A738B31F760101DFD644D9 |
last seen | 2019-03-04 |
modified | 2019-03-04 |
published | 2019-03-04 |
reporter | The Hacker News |
source | https://thehackernews.com/2019/03/cybersecurity-macos-hacking.html |
title | Google Discloses Unpatched 'High-Severity' Flaw in Apple macOS Kernel |