Vulnerabilities > CVE-2018-4235 - Injection vulnerability in Apple products
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
NONE Integrity impact
HIGH Availability impact
NONE Summary
An issue was discovered in certain Apple products. iOS before 11.4 is affected. macOS before 10.13.5 is affected. tvOS before 11.4 is affected. watchOS before 4.3.1 is affected. The issue involves the "Messages" component. It allows local users to perform impersonation attacks via an unspecified injection.
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.
- Server Side Include (SSI) Injection An attacker can use Server Side Include (SSI) Injection to send code to a web application that then gets executed by the web server. Doing so enables the attacker to achieve similar results to Cross Site Scripting, viz., arbitrary code execution and information disclosure, albeit on a more limited scale, since the SSI directives are nowhere near as powerful as a full-fledged scripting language. Nonetheless, the attacker can conveniently gain access to sensitive files, such as password files, and execute shell commands.
- Cross Site Scripting through Log Files An attacker may leverage a system weakness where logs are susceptible to log injection to insert scripts into the system's logs. If these logs are later viewed by an administrator through a thin administrative interface and the log data is not properly HTML encoded before being written to the page, the attackers' scripts stored in the log will be executed in the administrative interface with potentially serious consequences. This attack pattern is really a combination of two other attack patterns: log injection and stored cross site scripting.
- Command Line Execution through SQL Injection An attacker uses standard SQL injection methods to inject data into the command line for execution. This could be done directly through misuse of directives such as MSSQL_xp_cmdshell or indirectly through injection of data into the database that would be interpreted as shell commands. Sometime later, an unscrupulous backend application (or could be part of the functionality of the same application) fetches the injected data stored in the database and uses this data as command line arguments without performing proper validation. The malicious data escapes that data plane by spawning new commands to be executed on the host.
- Subverting Environment Variable Values The attacker directly or indirectly modifies environment variables used by or controlling the target software. The attacker's goal is to cause the target software to deviate from its expected operation in a manner that benefits the attacker.
Nessus
NASL family Misc. NASL id APPLETV_11_4.NASL description According to its banner, the version of Apple TV on the remote device is prior to 11.4. It is, therefore, affected by multiple vulnerabilities as described in the HT208850 security advisory. Note that only 4th and 5th generation models are affected by these vulnerabilities. last seen 2020-06-01 modified 2020-06-02 plugin id 110325 published 2018-06-05 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110325 title Apple TV < 11.4 Multiple Vulnerabilities code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(110325); script_version("1.6"); script_cvs_date("Date: 2019/04/05 23:25:06"); script_cve_id( "CVE-2018-4188", "CVE-2018-4190", "CVE-2018-4192", "CVE-2018-4198", "CVE-2018-4199", "CVE-2018-4200", "CVE-2018-4201", "CVE-2018-4204", "CVE-2018-4206", "CVE-2018-4211", "CVE-2018-4214", "CVE-2018-4218", "CVE-2018-4222", "CVE-2018-4223", "CVE-2018-4224", "CVE-2018-4232", "CVE-2018-4233", "CVE-2018-4235", "CVE-2018-4237", "CVE-2018-4240", "CVE-2018-4241", "CVE-2018-4243", "CVE-2018-4246", "CVE-2018-4249", "CVE-2018-5383" ); script_bugtraq_id( 103957, 103958, 103961, 104378 ); script_xref(name:"APPLE-SA", value:"APPLE-SA-2018-6-01-6"); script_name(english:"Apple TV < 11.4 Multiple Vulnerabilities"); script_summary(english:"Checks the build number."); script_set_attribute(attribute:"synopsis", value: "The remote Apple TV device is affected by multiple vulnerabilities."); script_set_attribute(attribute:"description", value: "According to its banner, the version of Apple TV on the remote device is prior to 11.4. It is, therefore, affected by multiple vulnerabilities as described in the HT208850 security advisory. Note that only 4th and 5th generation models are affected by these vulnerabilities."); script_set_attribute(attribute:"see_also", value:"https://support.apple.com/en-us/HT208850"); # https://lists.apple.com/archives/security-announce/2018/Jun/msg00003.html script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0e8b8fb7"); # https://lists.apple.com/archives/security-announce/2018/Jul/msg00011.html script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b0bb7d4f"); script_set_attribute(attribute:"solution", value: "Upgrade to Apple TV version 11.4 or later. Note that this update is only available for 4th and 5th generation models."); 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-2018-4241"); 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:"metasploit_name", value:'Mac OS X libxpc MITM Privilege Escalation'); script_set_attribute(attribute:"exploit_framework_metasploit", value:"true"); script_set_attribute(attribute:"vuln_publication_date", value:"2018/06/01"); script_set_attribute(attribute:"patch_publication_date", value:"2018/06/01"); script_set_attribute(attribute:"plugin_publication_date", value:"2018/06/05"); script_set_attribute(attribute:"plugin_type", value:"remote"); script_set_attribute(attribute:"cpe", value:"cpe:/a:apple:apple_tv"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_family(english:"Misc."); script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_dependencies("appletv_version.nasl"); script_require_keys("AppleTV/Version", "AppleTV/Model", "AppleTV/URL", "AppleTV/Port"); script_require_ports("Services/www", 7000); exit(0); } include("audit.inc"); include("appletv_func.inc"); url = get_kb_item('AppleTV/URL'); if (empty_or_null(url)) exit(0, 'Cannot determine Apple TV URL.'); port = get_kb_item('AppleTV/Port'); if (empty_or_null(port)) exit(0, 'Cannot determine Apple TV port.'); build = get_kb_item('AppleTV/Version'); if (empty_or_null(build)) audit(AUDIT_UNKNOWN_DEVICE_VER, 'Apple TV'); model = get_kb_item('AppleTV/Model'); if (empty_or_null(model)) exit(0, 'Cannot determine Apple TV model.'); # https://en.wikipedia.org/wiki/TvOS # 4th gen model "5,3" and 5th gen model "6,2" share same build fixed_build = "15L577"; tvos_ver = '11'; # determine gen from the model gen = APPLETV_MODEL_GEN[model]; appletv_check_version( build : build, fix : fixed_build, affected_gen : make_list(4, 5), fix_tvos_ver : tvos_ver, model : model, gen : gen, port : port, url : url, severity : SECURITY_HOLE );NASL family MacOS X Local Security Checks NASL id MACOS_10_13_5.NASL description The remote host is running a version of macOS / Mac OS X that is 10.13.x prior to 10.13.5. It is, therefore, affected by multiple vulnerabilities. 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 110324 published 2018-06-05 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110324 title macOS 10.13.x < 10.13.5 Multiple Vulnerabilities code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(110324); script_version("1.11"); script_cvs_date("Date: 2019/11/04"); script_cve_id( "CVE-2018-4141", "CVE-2018-4159", "CVE-2018-4180", "CVE-2018-4181", "CVE-2018-4182", "CVE-2018-4183", "CVE-2018-4184", "CVE-2018-4193", "CVE-2018-4194", "CVE-2018-4196", "CVE-2018-4198", "CVE-2018-4202", "CVE-2018-4211", "CVE-2018-4217", "CVE-2018-4219", "CVE-2018-4221", "CVE-2018-4223", "CVE-2018-4224", "CVE-2018-4225", "CVE-2018-4226", "CVE-2018-4227", "CVE-2018-4228", "CVE-2018-4229", "CVE-2018-4230", "CVE-2018-4234", "CVE-2018-4235", "CVE-2018-4236", "CVE-2018-4237", "CVE-2018-4240", "CVE-2018-4241", "CVE-2018-4242", "CVE-2018-4243", "CVE-2018-4249", "CVE-2018-4251", "CVE-2018-4253", "CVE-2018-4254", "CVE-2018-4255", "CVE-2018-4256", "CVE-2018-4257", "CVE-2018-4258", "CVE-2018-4404", "CVE-2018-4478", "CVE-2018-5383", "CVE-2018-7584" ); script_bugtraq_id( 103204, 104378, 104879, 104888, 104889, 104897, 107135 ); script_xref(name:"APPLE-SA", value:"APPLE-SA-2018-7-23-2"); script_name(english:"macOS 10.13.x < 10.13.5 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 10.13.x prior to 10.13.5. It is, therefore, affected by multiple vulnerabilities. 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/HT208849"); # https://lists.apple.com/archives/security-announce/2018/Jul/msg00009.html script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?68a789b4"); script_set_attribute(attribute:"solution", value: "Upgrade to macOS version 10.13.5 or later."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/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:N/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-2018-4258"); 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:"metasploit_name", value:'Safari Proxy Object Type Confusion'); script_set_attribute(attribute:"exploit_framework_metasploit", value:"true"); script_set_attribute(attribute:"vuln_publication_date", value:"2018/06/01"); script_set_attribute(attribute:"patch_publication_date", value:"2018/06/01"); script_set_attribute(attribute:"plugin_publication_date", value:"2018/06/05"); 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) 2018-2019 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"); 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]; fix = "10.13.5"; if (version !~"^10\.13($|[^0-9])") audit(AUDIT_OS_NOT, "macOS 10.13.x"); if (ver_compare(ver:version, 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);