Exploit for Integer Overflow or Wraparound in Apple Icloud

Exploiting CVE-2019-8601 This is an exploit for a WebKit vuln...

CVE-2019-2208

In PromiseBuiltinsAssembler::NewPromiseCapability of builtins-promise.cc, there is a possible out of bounds read in v8 JIT code due to a bug in code generation. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for...

CVE-2019-2208

In PromiseBuiltinsAssembler::NewPromiseCapability of builtins-promise.cc, there is a possible out of bounds read in v8 JIT code due to a bug in code generation. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for...

CVE-2019-2208

In PromiseBuiltinsAssembler::NewPromiseCapability of builtins-promise.cc, there is a possible out of bounds read in v8 JIT code due to a bug in code generation. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for...

CVE-2019-2208

CVE-2019-2208 affects Android components (Android 8.1 and 9) with a flaw in V8 JIT code during PromiseBuiltinsAssembler::NewPromiseCapability, causing an out-of-bounds read. This can lead to remote information disclosure without user interaction or privileges. The connected records confirm the is...

CVE-2019-2208

In PromiseBuiltinsAssembler::NewPromiseCapability of builtins-promise.cc, there is a possible out of bounds read in v8 JIT code due to a bug in code generation. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for...

CVE-2019-2208: Out-of-bounds Read

In PromiseBuiltinsAssembler::NewPromiseCapability of builtins-promise.cc, there is a possible out of bounds read in v8 JIT code due to a bug in code generation. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for...

PT-2019-16294

Name of the Vulnerable Software and Affected Versions Android versions Android-8.1, Android-9 Description A bug in code generation in the v8 JIT code of PromiseBuiltinsAssembler::NewPromiseCapability in builtins-promise.cc could lead to a possible out of bounds read. This issue may result in remo...

Mozilla Firefox ESR < 31.5.2 JIT Code Execution

Binary data 701253.prm...

JavaScriptCore - GetterSetter Type Confusion During DFG Compilation Exploit

The following JavaScript program, found by Fuzzilli and slightly modified, crashes JavaScriptCore built from HEAD and the current stable release /System/Library/Frameworks/JavaScriptCore.framework/Resources/jsc: let notAGetterSetter = whatever: 42; function v2v5 const v10 = Object; if v5 const v1...

JavaScriptCore GetterSetter Type Confusion

JSC: GetterSetter type confusion during DFG compilation The following JavaScript program, found by Fuzzilli and slightly modified, crashes JavaScriptCore built from HEAD and the current stable release /System/Library/Frameworks/JavaScriptCore.framework/Resources/jsc: let notAGetterSetter =...

JavaScriptCore - GetterSetter Type Confusion During DFG Compilation

The following JavaScript program, found by Fuzzilli and slightly modified, crashes JavaScriptCore built from HEAD and the current stable release /System/Library/Frameworks/JavaScriptCore.framework/Resources/jsc: let notAGetterSetter = whatever: 42; function v2v5 const v10 = Object; if v5 const v1...

CVE-2018-12549

In Eclipse OpenJ9 version 0.11.0, the OpenJ9 JIT compiler may incorrectly omit a null check on the receiver object of an Unsafe call when accelerating it...

CVE-2018-12387

A vulnerability where the JavaScript JIT compiler inlines Array.prototype.push with multiple arguments that results in the stack pointer being off by 8 bytes after a bailout. This leaks a memory address to the calling function which can be used as part of an exploit inside the sandboxed content...

The vulnerability affects the implementation of the `Array.prototype.push` method in JIT-compilers of Firefox and Firefox ESR web browsers, allowing an attacker to execute arbitrary code.

The vulnerability of the Array.prototype.push method in JIT-compilers of Firefox and Firefox ESR browsers is related to insufficient validation of input data. Exploiting this vulnerability allows an attacker to execute arbitrary code remotely...

In-depth exploration found in the wild iOS exploit chain VI-vulnerability warning-the black bar safety net

In this article, we will Analysis on your iOS device to get the normal permissions of the shell of the WebKit exploit method, where all the vulnerabilities are available on iOS's sandboxed renderer process WebContent implemented shellcode code execution. Although on iOS Chrome will also be affect...

Webkit JSC: JIT - Uninitialized Variable Access in ArgumentsEliminationPhase::transform Exploit

https://github.com/WebKit/webkit/blob/94e868c940d46c5745869192d07255331d00102b/Source/JavaScriptCore/dfg/DFGArgumentsEliminationPhase.cppL743 case GetByVal: ... unsigned numberOfArgumentsToSkip = 0; if candidate-op == PhantomCreateRest numberOfArgumentsToSkip = candidate-numberOfArgumentsToSkip;...

Webkit JSC: JIT - Uninitialized Variable Access in ArgumentsEliminationPhase::transform

Webkit JSC: JIT - Uninitialized Variable Access in ArgumentsEliminationPhase::transform https://github.com/WebKit/webkit/blob/94e868c940d46c5745869192d07255331d00102b/Source/JavaScriptCore/dfg/DFGArgumentsEliminationPhase.cppL743 case GetByVal: ... unsigned numberOfArgumentsToSkip = 0; if...

Webkit JSC JIT ArgumentsEliminationPhase::transform Uninitialized Variable Access

https://github.com/WebKit/webkit/blob/94e868c940d46c5745869192d07255331d00102b/Source/JavaScriptCore/dfg/DFGArgumentsEliminationPhase.cppL743 case GetByVal: ... unsigned numberOfArgumentsToSkip = 0; if candidate-op == PhantomCreateRest numberOfArgumentsToSkip = candidate-numberOfArgumentsToSkip;...

JSC Exploits

Posted by Samuel Groß, Project Zero In this post, we will take a look at the WebKit exploits used to gain an initial foothold onto the iOS device and stage the privilege escalation exploits. All exploits here achieve shellcode execution inside the sandboxed renderer process WebContent on iOS...