Firefox 44.0.2 - ASM.JS JIT-Spray Remote Code Execution

46.0.1 -- CVE-2016-1960 and ASM.JS JIT-Spray "use strict" var Exploit = function this.asmjs = new Asmjs this.heap = new Heap Exploit.prototype.go = function / target address of fake node object / var nodetargetaddr = 0x20200000 / target address of asm.js float pool payload/ var targeteip =...

Firefox 46.0.1 - ASM.JS JIT-Spray Remote Code Execution

Firefox 46.0.1 - ASM.JS JIT-Spray Remote Code Execution CVE-2016-2819 and ASM.JS JIT-Spray "use strict" var Exploit = function this.asmjs = new Asmjs this.heap = new Heap Exploit.prototype.go = function / target address of fake node object / var nodetargetaddr = 0x5a500000 / target address of...

Chrome: V8: JIT: Type confusion in GetSpecializationContext

PoC: function optarg = = arg let tmp = opt.x; // LdaNamedProperty for ;; arg; yield; function inner tmp; break; for let i = 0; i arg; this; , opt let tmp = arg.x; for ;; arg; yield; tmp = inner tmp; ; for let i = 0; i arg; this; , opt let tmp = arg.x; for ;; arg; yield; tmp = inner tmp; ; for let...

Chrome: V8: JIT: Simplified-lowererer IrOpcode::kStoreField, IrOpcode::kStoreElement optimization bug

I think this commit has introduced the bugs: https://chromium.googlesource.com/v8/v8/+/c22ca7f73ba92f22d0cd29b06bb2944a545a8d3e%5E%21/F0 Here's a snippet. case IrOpcode::kStoreField: FieldAccess access = FieldAccessOfnode-op; Node valuenode = node-InputAt1; NodeInfo inputinfo = GetInfovaluenode;...

Safari Proxy Object Type Confusion

This 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....

SUSE SLES11 Security Update : java-1_7_1-ibm (SUSE-SU-2018:0630-1)

This update for java-171-ibm provides the following fix: The version was updated to 7.1.4.20 bsc1082810 - Security fixes : - CVE-2018-2633 CVE-2018-2637 CVE-2018-2634 CVE-2018-2582 CVE-2018-2641 CVE-2018-2618 CVE-2018-2657 CVE-2018-2603 CVE-2018-2599 CVE-2018-2602 CVE-2018-2678 CVE-2018-2677...

SUSE-SU-2018:0630-1 Security update for java-1_7_1-ibm

This update for java-171-ibm provides the following fix: The version was updated to 7.1.4.20 bsc1082810 Security fixes: - CVE-2018-2633 CVE-2018-2637 CVE-2018-2634 CVE-2018-2582 CVE-2018-2641 CVE-2018-2618 CVE-2018-2657 CVE-2018-2603 CVE-2018-2599 CVE-2018-2602 CVE-2018-2678 CVE-2018-2677...

Chrome V8 JIT GetSpecializationContext Type Confusion Exploit

Exploit for multiple platform in category dos / poc Chrome: V8: JIT: Type confusion in GetSpecializationContext PoC: function optarg = = arg let tmp = opt.x; // LdaNamedProperty for ;; arg; yield; function inner tmp; break; for let i = 0; i arg; this; , opt let tmp = arg.x; for ;; arg; yield; tmp...

Chrome V8 JIT - Simplified-lowererer IrOpcode::kStoreField_ IrOpcode::kStoreElement Optimization Bug

Chrome V8 JIT - Simplified-lowererer IrOpcode::kStoreField IrOpcode::kStoreElement Optimization Bug / I think this commit has introduced the bugs: https://chromium.googlesource.com/v8/v8/+/c22ca7f73ba92f22d0cd29b06bb2944a545a8d3e%5E%21/F0 Here's a snippet. case IrOpcode::kStoreField: FieldAccess...

Chrome V8 JIT Optmization Bug Exploit

Chrome V8 JIT suffers from a simplified-lowererer IrOpcode::kStoreField, IrOpcode::kStoreElement optimization bug. Chrome: V8: JIT: Simplified-lowererer IrOpcode::kStoreField, IrOpcode::kStoreElement optimization bug I think this commit has introduced the bugs:...

Chrome V8 JIT - 'GetSpecializationContext' Type Confusion

PoC: function optarg = = arg let tmp = opt.x; // LdaNamedProperty for ;; arg; yield; function inner tmp; break; for let i = 0; i arg; this; , opt let tmp = arg.x; for ;; arg; yield; tmp = inner tmp; ; for let i = 0; i 10000; i++ opt; What happened: 1. The LdaNamedProperty operation "opt.x" was...

Chrome V8 JIT - GetSpecializationContext Type Confusion

Chrome V8 JIT - GetSpecializationContext Type Confusion PoC: function optarg = = arg let tmp = opt.x; // LdaNamedProperty for ;; arg; yield; function inner tmp; break; for let i = 0; i arg; this; , opt let tmp = arg.x; for ;; arg; yield; tmp = inner tmp; ; for let i = 0; i 10000; i++ opt; What...

Chrome V8 JIT JSBuiltinReducer::ReduceObjectCreate NULL Check Fail Exploit

Exploit for multiple platform in category dos / poc Chrome: V8: JIT: JSBuiltinReducer::ReduceObjectCreate fails to ensure that the prototype is "null" I think this commit has introduced the bug. https://chromium.googlesource.com/v8/v8/+/ff7063c7d5d8ad8eafcce3da59e65d7fe2b4f915%5E%21/F2 According ...

Chrome V8 JIT - Simplified-lowererer IrOpcode::kStoreField_ IrOpcode::kStoreElement Optimization Bug

/ I think this commit has introduced the bugs: https://chromium.googlesource.com/v8/v8/+/c22ca7f73ba92f22d0cd29b06bb2944a545a8d3e%5E%21/F0 Here's a snippet. case IrOpcode::kStoreField: FieldAccess access = FieldAccessOfnode-op; Node valuenode = node-InputAt1; NodeInfo inputinfo = GetInfovaluenode...

Chrome V8 JIT - Empty BytecodeJumpTable Out-of-Bounds Read

/ In the current implementation, the bytecode generator also emits empty jump tables. https://cs.chromium.org/chromium/src/v8/src/interpreter/bytecode-array-writer.cc?rcl=111e990462823c9faeee06b67c0dcf05749d4da8&l=89 So the bytecode for the example code would be generated as follows: Code: functi...

Chrome V8 JIT JSBuiltinReducer::ReduceObjectCreate NULL Check Fail

Chrome: V8: JIT: JSBuiltinReducer::ReduceObjectCreate fails to ensure that the prototype is "null" I think this commit has introduced the bug. https://chromium.googlesource.com/v8/v8/+/ff7063c7d5d8ad8eafcce3da59e65d7fe2b4f915%5E%21/F2 According to the description, Object.create is supposed to be...

Chrome V8 JIT Optmization Bug

Chrome: V8: JIT: Simplified-lowererer IrOpcode::kStoreField, IrOpcode::kStoreElement optimization bug I think this commit has introduced the bugs: https://chromium.googlesource.com/v8/v8/+/c22ca7f73ba92f22d0cd29b06bb2944a545a8d3e%5E%21/F0 Here's a snippet. case IrOpcode::kStoreField: FieldAccess...

Chrome V8 JIT GetSpecializationContext Type Confusion

Chrome: V8: JIT: Type confusion in GetSpecializationContext PoC: function optarg = = arg let tmp = opt.x; // LdaNamedProperty for ;; arg; yield; function inner tmp; break; for let i = 0; i arg; this; , opt let tmp = arg.x; for ;; arg; yield; tmp = inner tmp; ; for let i = 0; i 10000; i++ opt; Wha...

Microsoft Edge: Chakra: JIT: CallRegExSymbolFunction doesn't check the return type

The "CallRegExSymbolFunction" method is used to call symbol functions in regexp objects. But it doesn't check the return value's type. Since the user can define the symbol functions, it can break the JIT compiler's type assumptions. Tested Microsoft Edge 41.16299.15.0 with Experimental JavaScript...

Microsoft Edge Chakra JIT CallRegExSymbolFunction Return Check Fail Exploit

Exploit for windows platform in category dos / poc Microsoft Edge: Chakra: JIT: CallRegExSymbolFunction doesn't check the return type The "CallRegExSymbolFunction" method is used to call symbol functions in regexp objects. But it doesn't check the return value's type. Since the user can define th...