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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, Ian Beer, 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
SHA-256 | ac8550e0b0dd814a249c313353fcb65341e18bb2e59885151b0cffac8172e060
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
SHA-256 | 02d9b935a7a5cdf82db861dce43947e948ad10d79814fe11cb814deae28bd90e
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
SHA-256 | b2ef5d97a0dd4510c8d65950bb3a0565483a6e3af0f1fedf4e319f255c891d27
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
SHA-256 | 857fee29a90629f33ba85af6600e36de596f303b9de4fc96e0cc80eb90fae597
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
SHA-256 | 414e2fd1f058460610b6e631ce22a9620407a86f8b5f4823842f21a210f09bda
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
SHA-256 | e98ea598a4eabbb5087a8a2218a2de8f5f9a525c48b0b236080247fe6427f405
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
SHA-256 | c0220c58b288dbb3089fcc06182e86efa1aa62220a826e40338a53ed4207e04a
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
SHA-256 | de185e7103f636e1fcad60409b9786b45a4f0892ea7f9423a96e317fd00c679b
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
SHA-256 | cf297a1d1709f69c63008abd53a5bad99c4a8a4734712409cc14a7f48ecae560
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
SHA-256 | 186ed96a050a6056a4439f90e0a88652005680ecf9733a2595a9efc7d2127d3e
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
SHA-256 | 235011f8d40f10f6eefc42756667cf9730b9b7549ad68a89cec4884cef6a0e64
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
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
SHA-256 | 5d4a22954b3f3b9b8c0a8c419e0ed0ceddc9e37fa1414f4ad25b20de275f1f08
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
SHA-256 | 3b129ec8c32d415c71e324c81aae832401cb0b0f0807f06a01fe2a4b09b9d057
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