Vulnerabilities > CVE-2016-4743 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Apple products
Attack vector
LOCAL Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
NONE Availability impact
HIGH Summary
An issue was discovered in certain Apple products. iOS before 10.2 is affected. Safari before 10.0.2 is affected. iCloud before 6.1 is affected. iTunes before 12.5.4 is affected. The issue involves the "WebKit" component. It allows remote attackers to obtain sensitive information from process memory or cause a denial of service (memory corruption and application crash) via a crafted web site.
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 ITUNES_12_5_4.NASL description The version of Apple iTunes installed on the remote Windows host is prior to 12.5.4. It is, therefore, affected by multiple vulnerabilities : - Multiple remote code execution vulnerabilities exist in WebKit due to improper validation of user-supplied input and improper handling of objects in memory. An unauthenticated, remote attacker can exploit these vulnerabilities, by convincing a user to visit a specially crafted website, to corrupt memory and execute arbitrary code. (CVE-2016-4692, CVE-2016-7635, CVE-2016-7652) - Multiple information disclosure vulnerabilities exist in WebKit due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit these, by convincing a user to visit a specially crafted website, to disclose memory contents. (CVE-2016-4743, CVE-2016-7656) - An information disclosure vulnerability exists in WebKit due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit this, by convincing a user to visit a specially crafted website, to disclose user information. (CVE-2016-7586) - Multiple remote code execution vulnerabilities exist in WebKit due to improper validation of user-supplied input and improper state management. An unauthenticated, remote attacker can exploit these vulnerabilities, by convincing a user to visit a specially crafted website, to corrupt memory and execute arbitrary code. (CVE-2016-7587, CVE-2016-7589:, CVE-2016-7610, CVE-2016-7611, CVE-2016-7639, CVE-2016-7640, CVE-2016-7641, CVE-2016-7642, CVE-2016-7645, CVE-2016-7646, CVE-2016-7648, CVE-2016-7649, CVE-2016-7654) - An information disclosure vulnerability exists in WebKit due to improper handling of JavaScript prompts. An unauthenticated, remote attacker can exploit this, by convincing a user to visit a specially crafted website, to corrupt memory and execute arbitrary code. (CVE-2016-7592) - An information disclosure vulnerability exists in WebKit due to the use of uninitialized memory. An unauthenticated, remote attacker can exploit this, by convincing a user to visit a specially crafted website, to disclose memory contents. (CVE-2016-7598) - An information disclosure vulnerability exists that is triggered when handling HTTP redirections. An unauthenticated, remote attacker can exploit this, by convincing a user to visit a specially crafted website, to disclose user information. (CVE-2016-7599) - A remote code execution vulnerability exists in WebKit due to improper validation of user-supplied input and improper state management. An unauthenticated, remote attacker can exploit this, by convincing a user to visit a specially crafted website, to cause a denial of service condition or the execution of arbitrary code. (CVE-2016-7632) Note that Nessus has not tested for these issues but has instead relied only on the application last seen 2020-06-01 modified 2020-06-02 plugin id 95824 published 2016-12-14 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/95824 title Apple iTunes < 12.5.4 Multiple Vulnerabilities (credentialed check) code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(95824); script_version("1.9"); script_cvs_date("Date: 2019/11/13"); script_cve_id( "CVE-2016-4692", "CVE-2016-4743", "CVE-2016-7586", "CVE-2016-7587", "CVE-2016-7589", "CVE-2016-7592", "CVE-2016-7598", "CVE-2016-7599", "CVE-2016-7610", "CVE-2016-7611", "CVE-2016-7632", "CVE-2016-7635", "CVE-2016-7639", "CVE-2016-7640", "CVE-2016-7641", "CVE-2016-7642", "CVE-2016-7645", "CVE-2016-7646", "CVE-2016-7648", "CVE-2016-7649", "CVE-2016-7652", "CVE-2016-7654", "CVE-2016-7656" ); script_bugtraq_id(94907, 94908, 94909); script_xref(name:"APPLE-SA", value:"APPLE-SA-2016-12-13-3"); script_name(english:"Apple iTunes < 12.5.4 Multiple Vulnerabilities (credentialed check)"); script_summary(english:"Checks the version of iTunes on Windows."); script_set_attribute(attribute:"synopsis", value: "The remote host contains an application that is affected by multiple vulnerabilities."); script_set_attribute(attribute:"description", value: "The version of Apple iTunes installed on the remote Windows host is prior to 12.5.4. It is, therefore, affected by multiple vulnerabilities : - Multiple remote code execution vulnerabilities exist in WebKit due to improper validation of user-supplied input and improper handling of objects in memory. An unauthenticated, remote attacker can exploit these vulnerabilities, by convincing a user to visit a specially crafted website, to corrupt memory and execute arbitrary code. (CVE-2016-4692, CVE-2016-7635, CVE-2016-7652) - Multiple information disclosure vulnerabilities exist in WebKit due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit these, by convincing a user to visit a specially crafted website, to disclose memory contents. (CVE-2016-4743, CVE-2016-7656) - An information disclosure vulnerability exists in WebKit due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit this, by convincing a user to visit a specially crafted website, to disclose user information. (CVE-2016-7586) - Multiple remote code execution vulnerabilities exist in WebKit due to improper validation of user-supplied input and improper state management. An unauthenticated, remote attacker can exploit these vulnerabilities, by convincing a user to visit a specially crafted website, to corrupt memory and execute arbitrary code. (CVE-2016-7587, CVE-2016-7589:, CVE-2016-7610, CVE-2016-7611, CVE-2016-7639, CVE-2016-7640, CVE-2016-7641, CVE-2016-7642, CVE-2016-7645, CVE-2016-7646, CVE-2016-7648, CVE-2016-7649, CVE-2016-7654) - An information disclosure vulnerability exists in WebKit due to improper handling of JavaScript prompts. An unauthenticated, remote attacker can exploit this, by convincing a user to visit a specially crafted website, to corrupt memory and execute arbitrary code. (CVE-2016-7592) - An information disclosure vulnerability exists in WebKit due to the use of uninitialized memory. An unauthenticated, remote attacker can exploit this, by convincing a user to visit a specially crafted website, to disclose memory contents. (CVE-2016-7598) - An information disclosure vulnerability exists that is triggered when handling HTTP redirections. An unauthenticated, remote attacker can exploit this, by convincing a user to visit a specially crafted website, to disclose user information. (CVE-2016-7599) - A remote code execution vulnerability exists in WebKit due to improper validation of user-supplied input and improper state management. An unauthenticated, remote attacker can exploit this, by convincing a user to visit a specially crafted website, to cause a denial of service condition or the execution of arbitrary code. (CVE-2016-7632) Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number."); script_set_attribute(attribute:"see_also", value:"https://support.apple.com/en-us/HT207427"); # https://lists.apple.com/archives/security-announce/2016/Dec/msg00005.html script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?848e8b5e"); script_set_attribute(attribute:"solution", value: "Upgrade to Apple iTunes version 12.5.4 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:N/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-2016-7656"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"exploit_available", value:"false"); script_set_attribute(attribute:"vuln_publication_date", value:"2016/12/13"); script_set_attribute(attribute:"patch_publication_date", value:"2016/12/13"); script_set_attribute(attribute:"plugin_publication_date", value:"2016/12/14"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"cpe:/a:apple:itunes"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_family(english:"Windows"); script_copyright(english:"This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_dependencies("itunes_detect.nasl"); script_require_keys("installed_sw/iTunes Version", "SMB/Registry/Enumerated"); exit(0); } include("vcf.inc"); get_kb_item_or_exit("SMB/Registry/Enumerated"); app_info = vcf::get_app_info(app:"iTunes Version", win_local:TRUE); constraints = [{ "fixed_version" : "12.5.4" }]; vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING);
NASL family Peer-To-Peer File Sharing NASL id ITUNES_12_5_4_BANNER.NASL description The version of Apple iTunes running on the remote host is prior to 12.5.4 It is, therefore, affected by multiple vulnerabilities : - Multiple remote code execution vulnerabilities exist in WebKit due to improper validation of user-supplied input and improper handling of objects in memory. An unauthenticated, remote attacker can exploit these vulnerabilities, by convincing a user to visit a specially crafted website, to corrupt memory and execute arbitrary code. (CVE-2016-4692, CVE-2016-7635, CVE-2016-7652) - Multiple information disclosure vulnerabilities exist in WebKit due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit these, by convincing a user to visit a specially crafted website, to disclose memory contents. (CVE-2016-4743, CVE-2016-7656) - An information disclosure vulnerability exists in WebKit due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit this, by convincing a user to visit a specially crafted website, to disclose user information. (CVE-2016-7586) - Multiple remote code execution vulnerabilities exist in WebKit due to improper validation of user-supplied input and improper state management. An unauthenticated, remote attacker can exploit these vulnerabilities, by convincing a user to visit a specially crafted website, to corrupt memory and execute arbitrary code. (CVE-2016-7587, CVE-2016-7589:, CVE-2016-7610, CVE-2016-7611, CVE-2016-7639, CVE-2016-7640, CVE-2016-7641, CVE-2016-7642, CVE-2016-7645, CVE-2016-7646, CVE-2016-7648, CVE-2016-7649, CVE-2016-7654) - An information disclosure vulnerability exists in WebKit due to improper handling of JavaScript prompts. An unauthenticated, remote attacker can exploit this, by convincing a user to visit a specially crafted website, to corrupt memory and execute arbitrary code. (CVE-2016-7592) - An information disclosure vulnerability exists in WebKit due to the use of uninitialized memory. An unauthenticated, remote attacker can exploit this, by convincing a user to visit a specially crafted website, to disclose memory contents. (CVE-2016-7598) - An information disclosure vulnerability exists that is triggered when handling HTTP redirections. An unauthenticated, remote attacker can exploit this, by convincing a user to visit a specially crafted website, to disclose user information. (CVE-2016-7599) - A remote code execution vulnerability exists in WebKit due to improper validation of user-supplied input and improper state management. An unauthenticated, remote attacker can exploit this, by convincing a user to visit a specially crafted website, to cause a denial of service condition or the execution of arbitrary code. (CVE-2016-7632) Note that Nessus has not tested for these issues but has instead relied only on the application last seen 2020-06-01 modified 2020-06-02 plugin id 95825 published 2016-12-14 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/95825 title Apple iTunes < 12.5.4 Multiple Vulnerabilities (uncredentialed check) NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-201706-15.NASL description The remote host is affected by the vulnerability described in GLSA-201706-15 (WebKitGTK+: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in WebKitGTK+. Please review the CVE identifiers referenced below for details. Impact : A remote attack can use multiple vectors to execute arbitrary code or cause a denial of service condition. Workaround : There is no known workaround at this time. last seen 2020-06-01 modified 2020-06-02 plugin id 100675 published 2017-06-08 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/100675 title GLSA-201706-15 : WebKitGTK+: Multiple vulnerabilities NASL family MacOS X Local Security Checks NASL id MACOSX_SAFARI10_0_2.NASL description The version of Apple Safari installed on the remote macOS or Mac OS X host is prior to 10.0.2. It is, therefore, affected by multiple vulnerabilities : - Multiple remote code execution vulnerabilities exist in WebKit due to improper validation of user-supplied input and improper handling of objects in memory. An unauthenticated, remote attacker can exploit these vulnerabilities, by convincing a user to visit a specially crafted website, to corrupt memory and execute arbitrary code. (CVE-2016-4692, CVE-2016-7635, CVE-2016-7652) - Multiple information disclosure vulnerabilities exist in WebKit due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit these, by convincing a user to visit a specially crafted website, to disclose memory contents. (CVE-2016-4743, CVE-2016-7656) - An information disclosure vulnerability exists in WebKit due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit this, by convincing a user to visit a specially crafted website, to disclose user information. (CVE-2016-7586) - Multiple remote code execution vulnerabilities exist in WebKit due to improper validation of user-supplied input and improper state management. An unauthenticated, remote attacker can exploit these vulnerabilities, by convincing a user to visit a specially crafted website, to corrupt memory and execute arbitrary code. (CVE-2016-7587, CVE-2016-7589:, CVE-2016-7610, CVE-2016-7611, CVE-2016-7639, CVE-2016-7640, CVE-2016-7641, CVE-2016-7642, CVE-2016-7645, CVE-2016-7646, CVE-2016-7648, CVE-2016-7649, CVE-2016-7654) - An information disclosure vulnerability exists in WebKit due to improper handling of JavaScript prompts. An unauthenticated, remote attacker can exploit this, by convincing a user to visit a specially crafted website, to corrupt memory and execute arbitrary code. (CVE-2016-7592) - An information disclosure vulnerability exists in WebKit due to the use of uninitialized memory. An unauthenticated, remote attacker can exploit this, by convincing a user to visit a specially crafted website, to disclose memory contents. (CVE-2016-7598) - An information disclosure vulnerability exists that is triggered when handling HTTP redirections. An unauthenticated, remote attacker can exploit this, by convincing a user to visit a specially crafted website, to disclose user information. (CVE-2016-7599) - An information disclosure vulnerability exists in WebKit due to improper validation of user-supplied input and blob URLs. An unauthenticated, remote attacker can exploit this, via a specially crafted blob URL, to disclose user information. (CVE-2016-7623) - A remote code execution vulnerability exists in WebKit due to improper validation of user-supplied input and improper state management. An unauthenticated, remote attacker can exploit this, by convincing a user to visit a specially crafted website, to cause a denial of service condition or the execution of arbitrary code. (CVE-2016-7632) - A cross-site scripting (XSS) vulnerability exists in Safari Reader due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit this, by convincing a user to follow a specially crafted link, to execute arbitrary script code in a user last seen 2020-06-01 modified 2020-06-02 plugin id 95919 published 2016-12-16 reporter This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/95919 title macOS : Apple Safari < 10.0.2 Multiple Vulnerabilities NASL family SuSE Local Security Checks NASL id SUSE_SU-2018-0219-1.NASL description This update for webkit2gtk3 fixes the following issues: Update to version 2.18.5 : + Disable SharedArrayBuffers from Web API. + Reduce the precision of last seen 2020-06-01 modified 2020-06-02 plugin id 106370 published 2018-01-26 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/106370 title SUSE SLED12 / SLES12 Security Update : webkit2gtk3 (SUSE-SU-2018:0219-1) (Meltdown) (Spectre) NASL family SuSE Local Security Checks NASL id OPENSUSE-2018-118.NASL description This update for webkit2gtk3 fixes the following issues : Update to version 2.18.5 : + Disable SharedArrayBuffers from Web API. + Reduce the precision of last seen 2020-06-05 modified 2018-02-01 plugin id 106549 published 2018-02-01 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/106549 title openSUSE Security Update : webkit2gtk3 (openSUSE-2018-118) (Meltdown) (Spectre)
References
- http://www.securityfocus.com/bid/94907
- http://www.securityfocus.com/bid/94907
- http://www.securitytracker.com/id/1037459
- http://www.securitytracker.com/id/1037459
- https://security.gentoo.org/glsa/201706-15
- https://security.gentoo.org/glsa/201706-15
- https://support.apple.com/HT207421
- https://support.apple.com/HT207421
- https://support.apple.com/HT207422
- https://support.apple.com/HT207422
- https://support.apple.com/HT207424
- https://support.apple.com/HT207424
- https://support.apple.com/HT207427
- https://support.apple.com/HT207427