Microsoft Edge Scripting Engine Memory Corruption (CVE-2019-0642)

A memory corruption vulnerability exists in Microsoft Edge. Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code on the affected system...

KB4487044: Windows 10 Version 1809 and Windows Server 2019 February 2019 Security Update

The remote Windows host is missing security update 4487044. It is, therefore, affected by multiple vulnerabilities : - A remote code execution vulnerability exists in .NET Framework and Visual Studio software when the software fails to check the source markup of a file. An attacker who successful...

Announcing Trend Micro Security for Microsoft Edge

Browsing the web securely with Microsoft Edge the browser recommended by Microsoft for Windows 10 users and the default browser in Windows 10 S-mode is a safer bet than ever before with Trend Micro Security for Microsoft Edge—a unique three-in-one browser extension that provides web threat...

The vulnerability of the JavaScript script handler ChakraCore in the Microsoft Edge browser allows a hacker to execute arbitrary code.

The vulnerability of the JavaScript script handler ChakraCore in the Microsoft Edge browser exists due to errors in memory object handling. Exploiting this vulnerability allows a remote attacker to execute arbitrary code...

The vulnerability of the Browser Broker component of the Microsoft Edge browser, which allows a hacker to increase their privileges.

The vulnerability of the Browser Broker component of the Microsoft Edge browser is related to deficiencies in access control. Exploiting this vulnerability can allow a malicious actor to enhance their privileges remotely...

The vulnerability of the JavaScript script handler ChakraCore in the Microsoft Edge browser allows a hacker to execute arbitrary code.

The vulnerability of the JavaScript script handler ChakraCore in the Microsoft Edge browser exists due to errors in memory object handling. Exploiting this vulnerability allows a remote attacker to execute arbitrary code...

Microsoft Edge Chakra - NewScObjectNoCtor or InitProto Type Confusion Exploit

NewScObjectNoCtor and InitProto opcodes are treated as having no side effects, but actually they can have via the SetIsPrototype method of the type handler that can cause transition to a new type. This can lead to type confusion in the JITed code. In the PoC, it overwrites the pointer to property...

Microsoft Edge Chakra - JsBuiltInEngineInterfaceExtensionObject::InjectJsBuiltInLibraryCode

/ The JsBuiltInEngineInterfaceExtensionObject::InjectJsBuiltInLibraryCode method is used to execute JsBuiltIn.js which initializes some builtin objects. Because it's essentially written in JavaScript, it needs to clear the disable-implicit-call flag before calling the JavaScript code, otherwise i...

Microsoft Edge Chakra - InitClass Type Confusion Exploit

/ Issue description This is similar to issue 1702 https://www.exploit-db.com/exploits/46203 . This time, it uses an InitClass instruction to reach the SetIsPrototype method. PoC: / function opto, c, value o.b = 1; class A extends c o.a = value; function main for let i = 0; i 2000; i++ let o = a: ...

Microsoft Edge Chakra - InlineArrayPush Type Confusion Exploit

/ In Chakra, if you add a numeric property to an object having inlined properties, it will start transition to a new type where the space for some of previously inlined properties become for the pointer to the property slots and the pointer to the object array which stores numeric properties. For...

Microsoft Edge Chakra - InitClass Type Confusion

Microsoft Edge Chakra - InitClass Type Confusion / Issue description This is similar to issue 1702 https://www.exploit-db.com/exploits/46203 . This time, it uses an InitClass instruction to reach the SetIsPrototype method. PoC: / function opto, c, value o.b = 1; class A extends c o.a = value;...

Microsoft Edge Chakra - JsBuiltInEngineInterfaceExtensionObject::InjectJsBuiltInLibraryCode Use-After-Free

Microsoft Edge Chakra - JsBuiltInEngineInterfaceExtensionObject::InjectJsBuiltInLibraryCode Use-After-Free / The JsBuiltInEngineInterfaceExtensionObject::InjectJsBuiltInLibraryCode method is used to execute JsBuiltIn.js which initializes some builtin objects. Because it's essentially written in...

Microsoft Edge Chakra - NewScObjectNoCtor or InitProto Type Confusion

Microsoft Edge Chakra - NewScObjectNoCtor or InitProto Type Confusion NewScObjectNoCtor and InitProto opcodes are treated as having no side effects, but actually they can have via the SetIsPrototype method of the type handler that can cause transition to a new type. This can lead to type confusio...

Microsoft Edge Chakra - 'InlineArrayPush' Type Confusion

/ In Chakra, if you add a numeric property to an object having inlined properties, it will start transition to a new type where the space for some of previously inlined properties become for the pointer to the property slots and the pointer to the object array which stores numeric properties. For...

Microsoft Edge Chakra - 'JsBuiltInEngineInterfaceExtensionObject::InjectJsBuiltInLibraryCode' Use-After-Free

/ The JsBuiltInEngineInterfaceExtensionObject::InjectJsBuiltInLibraryCode method is used to execute JsBuiltIn.js which initializes some builtin objects. Because it's essentially written in JavaScript, it needs to clear the disable-implicit-call flag before calling the JavaScript code, otherwise i...

Microsoft Edge Chakra - 'NewScObjectNoCtor' or 'InitProto' Type Confusion

NewScObjectNoCtor and InitProto opcodes are treated as having no side effects, but actually they can have via the SetIsPrototype method of the type handler that can cause transition to a new type. This can lead to type confusion in the JITed code. In the PoC, it overwrites the pointer to property...

Microsoft Edge Chakra JIT Use-After-Free / Flag Issue

Microsoft Edge: Chakra: JIT: JsBuiltInEngineInterfaceExtensionObject::InjectJsBuiltInLibraryCode just clears DisableImplicitFlags CVE-2019-0568 The JsBuiltInEngineInterfaceExtensionObject::InjectJsBuiltInLibraryCode method is used to execute JsBuiltIn.js which initializes some builtin objects...

Microsoft Edge Chakra JIT NewScObjectNoCtor / InitProto Type Confusion

Microsoft Edge: Chakra: JIT: Type confusion via NewScObjectNoCtor or InitProto CVE-2019-0567 NewScObjectNoCtor and InitProto opcodes are treated as having no side effects, but actually they can have via the SetIsPrototype method of the type handler that can cause transition to a new type. This ca...

Microsoft Edge Chakra InlineArrayPush Type Confusion

Microsoft Edge: Chakra: Type confusion with InlineArrayPush CVE-2018-8617 In Chakra, if you add a numeric property to an object having inlined properties, it will start transition to a new type where the space for some of previously inlined properties become for the pointer to the property slots...

The vulnerability of Microsoft Edge browser, related to errors in request handling mechanisms, allows attackers to disclose protected information.

The vulnerability of Microsoft Edge relates to errors in the request processing mechanism. Exploiting this vulnerability can allow a malicious actor, operating remotely, to disclose sensitive information through a specially crafted web page...