Microsoft Edge Chakra JIT - Stack-to-Heap Copy (Incomplete Fix) (2)

/ Here's a snippet of JavascriptArray::BoxStackInstance. template T JavascriptArray::BoxStackInstanceT instance, bool deepCopy AssertThreadContext::IsOnStackinstance; // On the stack, the we reserved a pointer before the object as to store the boxed value T boxedInstanceRef = T instance - 1; T...

Microsoft Edge Chakra JIT - Stack-to-Heap Copy (Incomplete Fix) (1)

/ Here's a snippet of JavascriptArray::BoxStackInstance. To fix issue 1420 , "deepCopy" was introduced. But it only deep-copies the array when "instance-head" is on the stack. So simply by adding a single line of code that allocates "head" to the heap, we can bypass the fix. template T...

Microsoft Windows JavaScript Typed Array JIT Optimization Use-After-Free Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Windows. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling o...

SUSE-SU-2018:0743-1 Security update for java-1_7_1-ibm

This update for java-171-ibm fixes the following issue: 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...

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

Exploit for windows platform in category remote exploits 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 nodetargetad...

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

Exploit for windows platform in category remote exploits 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...

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

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...

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 asm.js float pool payload/ var targeteip = 0x20200b58 / spr...

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...

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 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

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 asm.js float pool payload/ var targeteip = 0x20200b58 / spr...

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

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 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...