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A heap spray can be used to introduce a large amount of order to compensate for this and increase the chances of successful exploitation. Heap sprays take advantage of the fact that on most architectures and operating systems, the start location of large heap allocations is predictable and consecutive allocations are roughly sequential.
The term is general and can be used to describe a variety of techniques for bypassing heap protection strategies. The paper often credited with naming the technique, "Heap Feng Shui in JavaScript", [3] used it to refer to an exploit in which a dangling pointer was aligned with a portion of an
All other files being plaintext, except for obfuscation No, binary formatted files can be decompiled, which is obfuscation File system access Depends Single file upload, and drag and drop of files onto browser [46] Support for single file upload and generation, [47] AIR only: full create/read/write access to file system [48] Bitmap manipulation ...
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A JIT spray attack does heap spraying with the generated code. To produce exploit code from JIT, an idea from Dion Blazakis [ 4 ] is used. The input program, usually JavaScript or ActionScript , typically contains numerous constant values that can be erroneously executed as code.
CutePDF is a proprietary Portable Document Format converter and editor for Microsoft Windows developed by Acro Software. [1] [2] CutePDF Writer can create PDF files, [3] and CutePDF Form Filler can edit simple PDF forms so that they can be sent without using more expensive PDF authoring software.
HTML Form format HTML 4.01 Specification since PDF 1.5; HTML 2.0 since 1.2 Forms Data Format (FDF) based on PDF, uses the same syntax and has essentially the same file structure, but is much simpler than PDF since the body of an FDF document consists of only one required object. Forms Data Format is defined in the PDF specification (since PDF 1.2).
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