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.
ac8550e0b0dd814a249c313353fcb65341e18bb2e59885151b0cffac8172e060This 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.
02d9b935a7a5cdf82db861dce43947e948ad10d79814fe11cb814deae28bd90eApple Security Advisory 2018-7-23-5 - watchOS 4.3.1 addresses buffer overflow, code execution, and denial of service vulnerabilities.
b2ef5d97a0dd4510c8d65950bb3a0565483a6e3af0f1fedf4e319f255c891d27Apple Security Advisory 2018-7-23-3 - iOS 11.4 addresses buffer overflow, code execution, and denial of service vulnerabilities.
857fee29a90629f33ba85af6600e36de596f303b9de4fc96e0cc80eb90fae597Apple Security Advisory 2018-7-23-4 - tvOS 11.4 addresses buffer overflow, code execution, and denial of service vulnerabilities.
414e2fd1f058460610b6e631ce22a9620407a86f8b5f4823842f21a210f09bdaUbuntu 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.
e98ea598a4eabbb5087a8a2218a2de8f5f9a525c48b0b236080247fe6427f405Several 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.
c0220c58b288dbb3089fcc06182e86efa1aa62220a826e40338a53ed4207e04aApple Security Advisory 2018-06-01-7 - iTunes 12.7.5 for Windows addresses buffer overflow and code execution vulnerabilities.
de185e7103f636e1fcad60409b9786b45a4f0892ea7f9423a96e317fd00c679bApple Security Advisory 2018-06-01-6 - tvOS 11.4 addresses buffer overflow, code execution, and denial of service vulnerabilities.
cf297a1d1709f69c63008abd53a5bad99c4a8a4734712409cc14a7f48ecae560Apple Security Advisory 2018-06-01-5 - watchOS 4.3.1 addresses buffer overflow, code execution, and denial of service vulnerabilities.
186ed96a050a6056a4439f90e0a88652005680ecf9733a2595a9efc7d2127d3eApple Security Advisory 2018-06-01-4 - iOS 11.4 addresses buffer overflow, code execution, and denial of service vulnerabilities.
235011f8d40f10f6eefc42756667cf9730b9b7549ad68a89cec4884cef6a0e64Apple Security Advisory 2018-06-01-3 - iCloud for Windows 7.5 is now available and addresses buffer overflow and code execution vulnerabilities.
5d4a22954b3f3b9b8c0a8c419e0ed0ceddc9e37fa1414f4ad25b20de275f1f08Apple Security Advisory 2018-06-01-2 - Safari 11.1.1 is now available and addresses buffer overflow, code execution, and denial of service vulnerabilities.
3b129ec8c32d415c71e324c81aae832401cb0b0f0807f06a01fe2a4b09b9d057
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