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Implement PLTE & tEXt chunks injection for PNG files #22

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sighook opened this issue Mar 14, 2023 · 0 comments
Open

Implement PLTE & tEXt chunks injection for PNG files #22

sighook opened this issue Mar 14, 2023 · 0 comments
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enhancement New feature or request good first issue Good for newcomers

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@sighook
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sighook commented Mar 14, 2023 •
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Description:

Since we already have IDAT chunk injection that survives the various post-filtering techniques like PHP-GD compression, PHP-GD resizing, and ImageMagick resizing (unlike PLTE & tEXt), this is not a hot issue. But, nice to have more options.

Reference:

https://www.synacktiv.com/publications/persistent-php-payloads-in-pngs-how-to-inject-php-code-in-an-image-and-keep-it-there.html
Credits to Quentin Roland.
@sighook sighook added enhancement New feature or request good first issue Good for newcomers labels Mar 14, 2023
@sighook sighook pinned this issue May 20, 2023
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