Vulnerabilities > CVE-2015-7047 - Improper Input Validation vulnerability in Apple products
Attack vector
LOCAL Attack complexity
LOW Privileges required
NONE Confidentiality impact
COMPLETE Integrity impact
COMPLETE Availability impact
COMPLETE Summary
The kernel in Apple iOS before 9.2, OS X before 10.11.2, tvOS before 9.1, and watchOS before 2.1 allows local users to gain privileges via a crafted mach message that is misparsed.
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 Zone Scripting An attacker is able to cause a victim to load content into their web-browser that bypasses security zone controls and gain access to increased privileges to execute scripting code or other web objects such as unsigned ActiveX controls or applets. This is a privilege elevation attack targeted at zone-based web-browser security. In a zone-based model, pages belong to one of a set of zones corresponding to the level of privilege assigned to that page. Pages in an untrusted zone would have a lesser level of access to the system and/or be restricted in the types of executable content it was allowed to invoke. In a cross-zone scripting attack, a page that should be assigned to a less privileged zone is granted the privileges of a more trusted zone. This can be accomplished by exploiting bugs in the browser, exploiting incorrect configuration in the zone controls, through a cross-site scripting attack that causes the attackers' content to be treated as coming from a more trusted page, or by leveraging some piece of system functionality that is accessible from both the trusted and less trusted zone. This attack differs from "Restful Privilege Escalation" in that the latter correlates to the inadequate securing of RESTful access methods (such as HTTP DELETE) on the server, while cross-zone scripting attacks the concept of security zones as implemented by a browser.
- 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.
Exploit-Db
description OS X Kernel - IOAccelDisplayPipeUserClient2 Use-After-Free. CVE-2015-7047. Dos exploit for osx platform file exploits/osx/dos/39375.c id EDB-ID:39375 last seen 2016-02-04 modified 2016-01-28 platform osx port published 2016-01-28 reporter Google Security Research source https://www.exploit-db.com/download/39375/ title OS X Kernel - IOAccelDisplayPipeUserClient2 Use-After-Free type dos description OS X Kernel - no-more-senders Use-After-Free. CVE-2015-7047. Dos exploit for osx platform file exploits/osx/dos/39373.c id EDB-ID:39373 last seen 2016-02-04 modified 2016-01-28 platform osx port published 2016-01-28 reporter Google Security Research source https://www.exploit-db.com/download/39373/ title OS X Kernel - no-more-senders Use-After-Free type dos description OS X Kernel - IOAccelMemoryInfoUserClient Use-After-Free. CVE-2015-7047. Dos exploit for osx platform file exploits/osx/dos/39374.c id EDB-ID:39374 last seen 2016-02-04 modified 2016-01-28 platform osx port published 2016-01-28 reporter Google Security Research source https://www.exploit-db.com/download/39374/ title OS X Kernel - IOAccelMemoryInfoUserClient Use-After-Free type dos description OS X - IOBluetoothHCIPacketLogUserClient Memory Corruption. CVE-2015-7047. Dos exploit for osx platform file exploits/osx/dos/39371.c id EDB-ID:39371 last seen 2016-02-04 modified 2016-01-28 platform osx port published 2016-01-28 reporter Google Security Research source https://www.exploit-db.com/download/39371/ title OS X - IOBluetoothHCIPacketLogUserClient Memory Corruption type dos description OS X and iOS Unsandboxable Kernel Use-After-Free in Mach Vouchers. CVE-2015-7047. Dos exploits for multiple platform id EDB-ID:39377 last seen 2016-02-04 modified 2016-01-28 published 2016-01-28 reporter Google Security Research source https://www.exploit-db.com/download/39377/ title OS X and iOS Unsandboxable Kernel Use-After-Free in Mach Vouchers
Nessus
NASL family Misc. NASL id APPLETV_9_1.NASL description According to its banner, the version of the remote Apple TV device is prior to 9.1. It is, therefore, affected by multiple vulnerabilities in the following components : - AppleMobileFileIntegrity - Compression - CoreGraphics - CoreMedia Playback - Disk Images - dyld - ImageIO - IOAcceleratorFamily - IOHIDFamily - IOKit SCSI - Kernel - libarchive - libc - libxml2 - MobileStorageMounter - OpenGL - Security - WebKit Note that only 4th generation models are affected by the vulnerabilities. last seen 2020-06-01 modified 2020-06-02 plugin id 94050 published 2016-10-13 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/94050 title Apple TV < 9.1 Multiple Vulnerabilities code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(94050); script_version("1.8"); script_cvs_date("Date: 2019/02/26 4:50:08"); script_cve_id( "CVE-2011-2895", "CVE-2015-7038", "CVE-2015-7039", "CVE-2015-7040", "CVE-2015-7041", "CVE-2015-7042", "CVE-2015-7043", "CVE-2015-7047", "CVE-2015-7048", "CVE-2015-7051", "CVE-2015-7053", "CVE-2015-7054", "CVE-2015-7055", "CVE-2015-7058", "CVE-2015-7059", "CVE-2015-7060", "CVE-2015-7061", "CVE-2015-7064", "CVE-2015-7065", "CVE-2015-7066", "CVE-2015-7068", "CVE-2015-7072", "CVE-2015-7073", "CVE-2015-7074", "CVE-2015-7075", "CVE-2015-7079", "CVE-2015-7083", "CVE-2015-7084", "CVE-2015-7095", "CVE-2015-7096", "CVE-2015-7097", "CVE-2015-7098", "CVE-2015-7099", "CVE-2015-7100", "CVE-2015-7101", "CVE-2015-7102", "CVE-2015-7103", "CVE-2015-7104", "CVE-2015-7105", "CVE-2015-7109", "CVE-2015-7110", "CVE-2015-7111", "CVE-2015-7112", "CVE-2015-7115", "CVE-2015-7116" ); script_bugtraq_id( 49124, 78719, 78720, 78725, 78726, 78728, 78728, 78732, 78733, 78735, 80379 ); script_xref(name:"APPLE-SA", value:"APPLE-SA-2015-12-08-2"); script_xref(name:"EDB-ID", value:"39357"); script_xref(name:"EDB-ID", value:"38917"); script_name(english:"Apple TV < 9.1 Multiple Vulnerabilities"); script_summary(english:"Checks the build number."); script_set_attribute(attribute:"synopsis", value: "The remote device is affected by multiple vulnerabilities."); script_set_attribute(attribute:"description", value: "According to its banner, the version of the remote Apple TV device is prior to 9.1. It is, therefore, affected by multiple vulnerabilities in the following components : - AppleMobileFileIntegrity - Compression - CoreGraphics - CoreMedia Playback - Disk Images - dyld - ImageIO - IOAcceleratorFamily - IOHIDFamily - IOKit SCSI - Kernel - libarchive - libc - libxml2 - MobileStorageMounter - OpenGL - Security - WebKit Note that only 4th generation models are affected by the vulnerabilities."); script_set_attribute(attribute:"see_also", value:"https://support.apple.com/en-us/HT205640"); # https://lists.apple.com/archives/security-announce/2015/Dec/msg00001.html script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?951f278f"); script_set_attribute(attribute:"solution", value: "Upgrade to Apple TV version 9.1 or later. Note that this update is available only for 4th 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:POC/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N"); script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C"); script_set_attribute(attribute:"cvss_score_source", value:"CVE-2015-7116"); script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available"); script_set_attribute(attribute:"exploit_available", value:"true"); script_set_attribute(attribute:"vuln_publication_date", value:"2015/12/08"); script_set_attribute(attribute:"patch_publication_date", value:"2015/12/08"); script_set_attribute(attribute:"plugin_publication_date", value:"2016/10/13"); 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) 2016-2019 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("appletv_func.inc"); include("audit.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.'); # fix fixed_build = "13T402"; tvos_ver = "9.1"; # for reporting purposes only # determine gen from the model gen = APPLETV_MODEL_GEN[model]; appletv_check_version( build : build, fix : fixed_build, affected_gen : 4, fix_tvos_ver : tvos_ver, model : model, gen : gen, severity : SECURITY_HOLE, port : port, url : url );NASL family MacOS X Local Security Checks NASL id MACOSX_10_11_2.NASL description The remote host is running a version of Mac OS X that is 10.11.x prior to 10.11.2. It is, therefore, affected by multiple vulnerabilities in the following components : - apache_mod_php - AppSandbox - Bluetooth - CFNetwork HTTPProtocol - Compression - Configuration Profiles - CoreGraphics - CoreMedia Playback - Disk Images - EFI - File Bookmark - Hypervisor - iBooks - ImageIO - Intel Graphics Driver - IOAcceleratorFamily - IOHIDFamily - IOKit SCSI - IOThunderboltFamily - Kernel - kext tools - Keychain Access - libarchive - libc - libexpat - libxml2 - OpenGL - OpenLDAP - OpenSSH - QuickLook - Sandbox - Security - System Integrity Protection 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 87314 published 2015-12-10 reporter This script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/87314 title Mac OS X 10.11.x < 10.11.2 Multiple Vulnerabilities code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(87314); script_version("1.10"); script_cvs_date("Date: 2019/11/20"); script_cve_id( "CVE-2011-2895", "CVE-2012-0876", "CVE-2012-1147", "CVE-2012-1148", "CVE-2015-3807", "CVE-2015-5333", "CVE-2015-5334", "CVE-2015-6908", "CVE-2015-7001", "CVE-2015-7038", "CVE-2015-7039", "CVE-2015-7040", "CVE-2015-7041", "CVE-2015-7042", "CVE-2015-7043", "CVE-2015-7044", "CVE-2015-7045", "CVE-2015-7046", "CVE-2015-7047", "CVE-2015-7052", "CVE-2015-7053", "CVE-2015-7054", "CVE-2015-7058", "CVE-2015-7059", "CVE-2015-7060", "CVE-2015-7061", "CVE-2015-7062", "CVE-2015-7063", "CVE-2015-7064", "CVE-2015-7065", "CVE-2015-7066", "CVE-2015-7067", "CVE-2015-7068", "CVE-2015-7071", "CVE-2015-7073", "CVE-2015-7074", "CVE-2015-7075", "CVE-2015-7076", "CVE-2015-7077", "CVE-2015-7078", "CVE-2015-7081", "CVE-2015-7083", "CVE-2015-7084", "CVE-2015-7094", "CVE-2015-7105", "CVE-2015-7106", "CVE-2015-7107", "CVE-2015-7108", "CVE-2015-7109", "CVE-2015-7110", "CVE-2015-7111", "CVE-2015-7112", "CVE-2015-7115", "CVE-2015-7116", "CVE-2015-7803", "CVE-2015-7804" ); script_bugtraq_id( 49124, 52379, 76343, 76714, 76959, 77112, 78719, 78721, 78725, 78730, 78733, 78735 ); script_xref(name:"APPLE-SA", value:"APPLE-SA-2015-12-08-3"); script_xref(name:"EDB-ID", value:"38917"); script_name(english:"Mac OS X 10.11.x < 10.11.2 Multiple Vulnerabilities"); script_summary(english:"Checks the version of Mac OS X."); script_set_attribute(attribute:"synopsis", value: "The remote host is missing a Mac OS X update that fixes multiple security vulnerabilities."); script_set_attribute(attribute:"description", value: "The remote host is running a version of Mac OS X that is 10.11.x prior to 10.11.2. It is, therefore, affected by multiple vulnerabilities in the following components : - apache_mod_php - AppSandbox - Bluetooth - CFNetwork HTTPProtocol - Compression - Configuration Profiles - CoreGraphics - CoreMedia Playback - Disk Images - EFI - File Bookmark - Hypervisor - iBooks - ImageIO - Intel Graphics Driver - IOAcceleratorFamily - IOHIDFamily - IOKit SCSI - IOThunderboltFamily - Kernel - kext tools - Keychain Access - libarchive - libc - libexpat - libxml2 - OpenGL - OpenLDAP - OpenSSH - QuickLook - Sandbox - Security - System Integrity Protection 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/HT205579"); script_set_attribute(attribute:"see_also", value:"https://support.apple.com/en-us/HT205637"); script_set_attribute(attribute:"solution", value: "Upgrade to Mac OS X version 10.11.2 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:POC/RL:OF/RC:C"); script_set_attribute(attribute:"cvss_score_source", value:"CVE-2015-7071"); script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available"); script_set_attribute(attribute:"exploit_available", value:"true"); script_set_attribute(attribute:"vuln_publication_date", value:"2011/08/11"); script_set_attribute(attribute:"patch_publication_date", value:"2015/12/08"); script_set_attribute(attribute:"plugin_publication_date", value:"2015/12/10"); script_set_attribute(attribute:"plugin_type", value:"combined"); script_set_attribute(attribute:"cpe", value:"cpe:/o:apple:mac_os_x"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_family(english:"MacOS X Local Security Checks"); script_copyright(english:"This script is Copyright (C) 2015-2019 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, "Mac OS X"); c = get_kb_item("Host/OS/Confidence"); if (c <= 70) exit(1, "Cannot determine the host's OS with sufficient confidence."); } if (!os) audit(AUDIT_OS_NOT, "Mac OS X"); match = eregmatch(pattern:"Mac OS X ([0-9]+(\.[0-9]+)+)", string:os); if (isnull(match)) exit(1, "Failed to parse the Mac OS X version ('" + os + "')."); version = match[1]; if ( version !~ "^10\.11([^0-9]|$)" ) audit(AUDIT_OS_NOT, "Mac OS X 10.11 or later", "Mac OS X "+version); fixed_version = "10.11.2"; if (ver_compare(ver:version, fix:fixed_version, strict:FALSE) == -1) { if (report_verbosity > 0) { report = '\n Installed version : ' + version + '\n Fixed version : ' + fixed_version + '\n'; security_hole(port:0, extra:report); } else security_hole(0); exit(0); } else exit(0, "The host is not affected since it is running Mac OS X "+version+".");NASL family MacOS X Local Security Checks NASL id MACOSX_SECUPD2015-008.NASL description The remote host is running a version of Mac OS X 10.9.5 or 10.10.5 that is missing Security Update 2015-005 or 2015-008. It is, therefore, affected by multiple vulnerabilities in the following components : - apache_mod_php - AppSandbox - Bluetooth - CFNetwork HTTPProtocol - Compression - Configuration Profiles - CoreGraphics - CoreMedia Playback - Disk Images - EFI - File Bookmark - Hypervisor - iBooks - ImageIO - Intel Graphics Driver - IOAcceleratorFamily - IOHIDFamily - IOKit SCSI - IOThunderboltFamily - Kernel - kext tools - Keychain Access - libarchive - libc - libexpat - libxml2 - OpenGL - OpenLDAP - OpenSSH - QuickLook - Sandbox - Security - System Integrity Protection 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 87321 published 2015-12-11 reporter This script is Copyright (C) 2015-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/87321 title Mac OS X Multiple Vulnerabilities (Security Updates 2015-005 / 2015-008)
References
- http://lists.apple.com/archives/security-announce/2015/Dec/msg00000.html
- http://lists.apple.com/archives/security-announce/2015/Dec/msg00001.html
- http://lists.apple.com/archives/security-announce/2015/Dec/msg00002.html
- http://lists.apple.com/archives/security-announce/2015/Dec/msg00005.html
- http://www.securityfocus.com/bid/78719
- http://www.securitytracker.com/id/1034344
- https://support.apple.com/HT205635
- https://support.apple.com/HT205637
- https://support.apple.com/HT205640
- https://support.apple.com/HT205641
- https://www.exploit-db.com/exploits/39371/
- https://www.exploit-db.com/exploits/39373/
- https://www.exploit-db.com/exploits/39374/
- https://www.exploit-db.com/exploits/39375/