WebKit: UXSS: CachedFrame doesn't detach openers(CVE-2017-2528)

When a document loads "about:blank" or "about:srcdoc", it tries to inherit the security origin from its parent frame, or its opener frame if the parent frame doesn't exist. Normally, it doesn't happen that a subframe's document inherits its opener frame's security origin, because it has the paren...

WebKit: UXSS via Document::prepareForDestruction and CachedFrame

WebKit: UXSS via Document::prepareForDestruction and CachedFrame Here's a snippet of Document::prepareForDestruction void Document::prepareForDestruction if mhasPreparedForDestruction return; ... detachFromFrame; mhasPreparedForDestruction = true; Document::prepareForDestruction is called on the...

WebKit: UXSS via CachedFrameBase::restore

This is similar to the case https://bugs.chromium.org/p/project-zero/issues/detail?id=1151. But this time, javascript handlers may be fired in FrameLoader::open. void FrameLoader::openCachedFrameBase& cachedFrame ... cleardocument, true, true, cachedFrame.isMainFrame; Click anywhere... function...

WebKit: Element::setAttributeNodeNS UAF

WebKit: Element::setAttributeNodeNS UAF Here's a snippet of Element::setAttributeNodeNS. ExceptionOr Element::setAttributeNodeNSAttr& attrNode ... setAttributeInternalindex, attrNode.qualifiedName, attrNode.value, NotInSynchronizationOfLazyAttribute; attrNode.attachToElementthis;...

WebKit JSC emitPutDerivedConstructorToArrowFunctionContextScope Incorrect Check(CVE-2017-2531)

WebKit: JSC: incorrect check in emitPutDerivedConstructorToArrowFunctionContextScope When a super expression is used in an arrow function, the following code, which generates bytecode, is called. if needsToUpdateArrowFunctionContext && !codeBlock-isArrowFunction bool canReuseLexicalEnvironment =...

WebKit Unspecified Memory Corruption Vulnerability(CVE-2017-2521)

WebKit: JSC: JSObject::ensureLength doesn't check if ensureLengthSlow failed. Here's a snippet of JSObject::ensureLength. bool WARNUNUSEDRETURN ensureLengthVM& vm, unsigned length ASSERTlength vectorLength publicLength setPublicLengthlength; return result; |setPublicLength| is called whether...

Exploiting an integer overflow with array spreading (WebKit)

This article is about CVE-2017-2536 / ZDI-17-358, a classic integer overflow while computing an allocation size, leading to a heap-based buffer overflow. It was introduced in 99ed479, which improved the way JavaScriptCore handled ECMAScript 6 spreading operations, and discovered by saelo in...

[SECURITY] Fedora 24 Update: chromium-58.0.3029.110-2.fc24

Chromium is an open-source web browser, powered by WebKit Blink...

WebKit JSC JSObject::ensureLength Failure Check

WebKit: JSC: JSObject::ensureLength doesn't check if ensureLengthSlow failed. CVE-2017-2521 Here's a snippet of JSObject::ensureLength. bool WARNUNUSEDRETURN ensureLengthVM& vm, unsigned length ASSERTlength vectorLength publicLength setPublicLengthlength; return result; |setPublicLength| is calle...

WebKit - Element::setAttributeNodeNS Use-After-Free

WebKit - Element::setAttributeNodeNS Use-After-Free Element::setAttributeNodeNSAttr& attrNode ... setAttributeInternalindex, attrNode.qualifiedName, attrNode.value, NotInSynchronizationOfLazyAttribute; attrNode.attachToElementthis; treeScope.adoptIfNeededattrNode;...

WebKit - CachedFrameBase::restore Universal Cross-Site Scripting

WebKit - CachedFrameBase::restore Universal Cross-Site Scripting Click anywhere... function createURLdata, type = 'text/html' return URL.createObjectURLnew Blobdata, type: type; function navigatew, url let a = w.document.createElement'a'; a.href = url; a.click; window.onclick = = window.w =...

WebKit JSC - JSObject::ensureLength ensureLengthSlow Check Failure

WebKit JSC - JSObject::ensureLength ensureLengthSlow Check Failure / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1165 Here's a snippet of JSObject::ensureLength. bool WARNUNUSEDRETURN ensureLengthVM& vm, unsigned length ASSERTlength vectorLength publicLength...

WebKit CachedFrameBase::restore Universal Cross Site Scripting

WebKit: UXSS via CachedFrameBase::restore This is similar to the case https://bugs.chromium.org/p/project-zero/issues/detail?id=1151. But this time, javascript handlers may be fired in FrameLoader::open. void FrameLoader::openCachedFrameBase& cachedFrame ... cleardocument, true, true,...

WebKit Element::setAttributeNodeNS Use-After-Free

WebKit: Element::setAttributeNodeNS UAF Here's a snippet of Element::setAttributeNodeNS. ExceptionOr Element::setAttributeNodeNSAttr& attrNode ... setAttributeInternalindex, attrNode.qualifiedName, attrNode.value, NotInSynchronizationOfLazyAttribute; attrNode.attachToElementthis;...

WebKit Document::prepareForDestruction / CachedFrame Universal XSS

WebKit: UXSS via Document::prepareForDestruction and CachedFrame Here's a snippet of Document::prepareForDestruction void Document::prepareForDestruction if mhasPreparedForDestruction return; ... detachFromFrame; mhasPreparedForDestruction = true; Document::prepareForDestruction is called on the...

WebKit CachedFrame Universal Cross Site Scripting

WebKit: UXSS: CachedFrame doesn't detach openers CVE-2017-2528 When a document loads "about:blank" or "about:srcdoc", it tries to inherit the security origin from its parent frame, or its opener frame if the parent frame doesn't exist. Normally, it doesn't happen that a subframe's document inheri...

WebKit JSC emitPutDerivedConstructorToArrowFunctionContextScope Incorrect Check Vulnerability

Exploit for multiple platform in category dos / poc WebKit: JSC: incorrect check in emitPutDerivedConstructorToArrowFunctionContextScope CVE-2017-2531 When a super expression is used in an arrow function, the following code, which generates bytecode, is called. if needsToUpdateArrowFunctionContex...

WebKit CachedFrame Universal Cross Site Scripting Vulnerability

Exploit for multiple platform in category web applications WebKit: UXSS: CachedFrame doesn't detach openers CVE-2017-2528 When a document loads "about:blank" or "about:srcdoc", it tries to inherit the security origin from its parent frame, or its opener frame if the parent frame doesn't exist...

WebKit Element::setAttributeNodeNS Use-After-Free Vulnerability

Exploit for multiple platform in category dos / poc WebKit: Element::setAttributeNodeNS UAF Here's a snippet of Element::setAttributeNodeNS. ExceptionOr Element::setAttributeNodeNSAttr& attrNode ... setAttributeInternalindex, attrNode.qualifiedName, attrNode.value,...

WebKit Document::prepareForDestruction / CachedFrame Universal XSS

WebKit suffers from a universal cross site scripting vulnerability via Document::prepareForDestruction and CachedFrame. WebKit: UXSS via Document::prepareForDestruction and CachedFrame Here's a snippet of Document::prepareForDestruction void Document::prepareForDestruction if...