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CVE-2018-4233

Status Candidate

Overview

An issue was discovered in certain Apple products. iOS before 11.4 is affected. Safari before 11.1.1 is affected. iCloud before 7.5 on Windows is affected. iTunes before 12.7.5 on Windows is affected. tvOS before 11.4 is affected. watchOS before 4.3.1 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

Related Files

Safari Webkit Proxy Object Type Confusion
Posted Jun 2, 2019
Authored by saelo, ianbeer, Siguza, niklasb | Site metasploit.com

This Metasploit module exploits a type confusion bug in the Javascript Proxy object in WebKit. The DFG JIT does not take into account that, through the use of a Proxy, it is possible to run arbitrary JS code during the execution of a CreateThis operation. This makes it possible to change the structure of e.g. an argument without causing a bailout, leading to a type confusion (CVE-2018-4233). The type confusion leads to the ability to allocate fake Javascript objects, as well as the ability to find the address in memory of a Javascript object. This allows us to construct a fake JSCell object that can be used to read and write arbitrary memory from Javascript. The module then uses a ROP chain to write the first stage shellcode into executable memory within the Safari process and kick off its execution. The first stage maps the second stage macho (containing CVE-2017-13861) into executable memory, and jumps to its entrypoint. The CVE-2017-13861 async_wake exploit leads to a kernel task port (TFP0) that can read and write arbitrary kernel memory. The processes credential and sandbox structure in the kernel is overwritten and the meterpreter payloads code signature hash is added to the kernels trust cache, allowing Safari to load and execute the (self-signed) meterpreter payload.

tags | exploit, arbitrary, kernel, javascript, shellcode
advisories | CVE-2017-13861, CVE-2018-4233
MD5 | 394148cda471deeb3abbfdccf622fa46
Safari Proxy Object Type Confusion
Posted Dec 13, 2018
Authored by saelo | Site metasploit.com

This Metasploit module exploits a type confusion bug in the Javascript Proxy object in WebKit. The DFG JIT does not take into account that, through the use of a Proxy, it is possible to run arbitrary JS code during the execution of a CreateThis operation. This makes it possible to change the structure of e.g. an argument without causing a bailout, leading to a type confusion.

tags | exploit, arbitrary, javascript
advisories | CVE-2018-4233, CVE-2018-4404
MD5 | c501475e6a50c14cfc8ea6a100c5476d
Apple Security Advisory 2018-7-23-5
Posted Jul 23, 2018
Authored by Apple | Site apple.com

Apple Security Advisory 2018-7-23-5 - watchOS 4.3.1 addresses buffer overflow, code execution, and denial of service vulnerabilities.

tags | advisory, denial of service, overflow, vulnerability, code execution
systems | apple
advisories | CVE-2018-4192, CVE-2018-4198, CVE-2018-4201, CVE-2018-4206, CVE-2018-4211, CVE-2018-4214, CVE-2018-4218, CVE-2018-4222, CVE-2018-4223, CVE-2018-4224, CVE-2018-4225, CVE-2018-4226, 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
MD5 | ae4c2d9cc07306103652e9ae805cf2a9
Apple Security Advisory 2018-7-23-3
Posted Jul 23, 2018
Authored by Apple | Site apple.com

Apple Security Advisory 2018-7-23-3 - iOS 11.4 addresses buffer overflow, code execution, and denial of service vulnerabilities.

tags | advisory, denial of service, overflow, vulnerability, code execution
systems | cisco, apple, ios
advisories | CVE-2018-4100, CVE-2018-4188, CVE-2018-4190, CVE-2018-4192, CVE-2018-4198, CVE-2018-4199, CVE-2018-4201, CVE-2018-4202, CVE-2018-4204, CVE-2018-4211, CVE-2018-4214, CVE-2018-4215, CVE-2018-4218, CVE-2018-4221, CVE-2018-4222, CVE-2018-4223, CVE-2018-4224, CVE-2018-4225, CVE-2018-4226, CVE-2018-4227, CVE-2018-4232, CVE-2018-4233, CVE-2018-4235, CVE-2018-4237, CVE-2018-4238, CVE-2018-4239, CVE-2018-4240, CVE-2018-4241
MD5 | 8427cf26d14947f142aa0d01ecf6404a
Apple Security Advisory 2018-7-23-4
Posted Jul 23, 2018
Authored by Apple | Site apple.com

Apple Security Advisory 2018-7-23-4 - tvOS 11.4 addresses buffer overflow, code execution, and denial of service vulnerabilities.

tags | advisory, denial of service, overflow, vulnerability, code execution
systems | apple
advisories | 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
MD5 | f9796698ca5b3182336a9da609ad4e31
Ubuntu Security Notice USN-3687-1
Posted Jun 18, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3687-1 - A large number of security issues were discovered in the WebKitGTK+ Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting attacks, denial of service attacks, and arbitrary code execution.

tags | advisory, remote, web, denial of service, arbitrary, javascript, code execution, xss
systems | linux, ubuntu
advisories | CVE-2018-12293, CVE-2018-4190, CVE-2018-4199, CVE-2018-4218, CVE-2018-4222, CVE-2018-4232, CVE-2018-4233
MD5 | 55bf9fa9e7a0502036a4c6a0c0d90f46
WebKitGTK+ Data Leak / Code Execution
Posted Jun 14, 2018
Authored by WebKitGTK+ Team

Several vulnerabilities were discovered in WebKitGTK+ and WPE WebKit that can lead to leaking of sensitive data, code execution, and more. Various 2.20.x versions are affected.

tags | advisory, vulnerability, code execution
advisories | CVE-2018-11646, CVE-2018-11712, CVE-2018-11713, CVE-2018-12293, CVE-2018-12294, CVE-2018-4190, CVE-2018-4192, CVE-2018-4199, CVE-2018-4201, CVE-2018-4214, CVE-2018-4218, CVE-2018-4222, CVE-2018-4232, CVE-2018-4233
MD5 | 53a674f30dc7d752aaae7c783ff1240c
Apple Security Advisory 2018-06-01-7
Posted Jun 4, 2018
Authored by Apple | Site apple.com

Apple Security Advisory 2018-06-01-7 - iTunes 12.7.5 for Windows addresses buffer overflow and code execution vulnerabilities.

tags | advisory, overflow, vulnerability, code execution
systems | windows, apple
advisories | CVE-2018-4188, CVE-2018-4190, CVE-2018-4192, CVE-2018-4199, CVE-2018-4200, CVE-2018-4201, CVE-2018-4204, CVE-2018-4214, CVE-2018-4218, CVE-2018-4222, CVE-2018-4224, CVE-2018-4225, CVE-2018-4226, CVE-2018-4232, CVE-2018-4233, CVE-2018-4246
MD5 | 21418e58adb1661a517e3c6bd071d5ab
Apple Security Advisory 2018-06-01-6
Posted Jun 4, 2018
Authored by Apple | Site apple.com

Apple Security Advisory 2018-06-01-6 - tvOS 11.4 addresses buffer overflow, code execution, and denial of service vulnerabilities.

tags | advisory, denial of service, overflow, vulnerability, code execution
systems | apple
advisories | 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
MD5 | e59d809eaa68d48219bc19a35d213a46
Apple Security Advisory 2018-06-01-5
Posted Jun 4, 2018
Authored by Apple | Site apple.com

Apple Security Advisory 2018-06-01-5 - watchOS 4.3.1 addresses buffer overflow, code execution, and denial of service vulnerabilities.

tags | advisory, denial of service, overflow, vulnerability, code execution
systems | apple
advisories | CVE-2018-4192, CVE-2018-4198, CVE-2018-4201, CVE-2018-4206, CVE-2018-4211, CVE-2018-4214, CVE-2018-4218, CVE-2018-4222, CVE-2018-4223, CVE-2018-4224, CVE-2018-4225, CVE-2018-4226, CVE-2018-4233, CVE-2018-4235, CVE-2018-4237, CVE-2018-4240, CVE-2018-4241, CVE-2018-4243, CVE-2018-4246, CVE-2018-4249
MD5 | 606ec24936293fd6372748b194424f83
Apple Security Advisory 2018-06-01-4
Posted Jun 4, 2018
Authored by Apple | Site apple.com

Apple Security Advisory 2018-06-01-4 - iOS 11.4 addresses buffer overflow, code execution, and denial of service vulnerabilities.

tags | advisory, denial of service, overflow, vulnerability, code execution
systems | cisco, apple
advisories | CVE-2018-4100, CVE-2018-4188, CVE-2018-4190, CVE-2018-4192, CVE-2018-4198, CVE-2018-4199, CVE-2018-4201, CVE-2018-4202, CVE-2018-4204, CVE-2018-4211, CVE-2018-4214, CVE-2018-4215, CVE-2018-4218, CVE-2018-4221, CVE-2018-4222, CVE-2018-4223, CVE-2018-4224, CVE-2018-4225, CVE-2018-4226, CVE-2018-4227, CVE-2018-4232, CVE-2018-4233, CVE-2018-4235, CVE-2018-4237, CVE-2018-4238, CVE-2018-4239, CVE-2018-4240, CVE-2018-4241
MD5 | fc219795904c819a159600cbcb5fc99d
Apple Security Advisory 2018-06-01-3
Posted Jun 4, 2018
Authored by Apple | Site apple.com

Apple Security Advisory 2018-06-01-3 - iCloud for Windows 7.5 is now available and addresses buffer overflow and code execution vulnerabilities.

tags | advisory, overflow, vulnerability, code execution
systems | windows, apple, 7
advisories | CVE-2018-4188, CVE-2018-4190, CVE-2018-4192, CVE-2018-4199, CVE-2018-4200, CVE-2018-4201, CVE-2018-4204, CVE-2018-4214, CVE-2018-4218, CVE-2018-4222, CVE-2018-4224, CVE-2018-4225, CVE-2018-4226, CVE-2018-4232, CVE-2018-4233, CVE-2018-4246
MD5 | 999dbe8d5703eeccacecf6a7cec02222
Apple Security Advisory 2018-06-01-2
Posted Jun 4, 2018
Authored by Apple | Site apple.com

Apple Security Advisory 2018-06-01-2 - Safari 11.1.1 is now available and addresses buffer overflow, code execution, and denial of service vulnerabilities.

tags | advisory, denial of service, overflow, vulnerability, code execution
systems | apple
advisories | CVE-2018-4188, CVE-2018-4190, CVE-2018-4192, CVE-2018-4199, CVE-2018-4201, CVE-2018-4205, CVE-2018-4214, CVE-2018-4218, CVE-2018-4222, CVE-2018-4232, CVE-2018-4233, CVE-2018-4246, CVE-2018-4247
MD5 | 9f471c1d8b2eaf0dd95a2dc0c07067cb
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