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plugin-ext: validate path when unpacking archives #7322

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plugin-ext: validate path when unpacking archives #7322

wants to merge 1 commit into from

Commits on Mar 13, 2020

  1. plugin-ext: validate path when unpacking archives 

    Fix zip-slip by validating where a given file will be unpacked. If the
expected path is outside of the destination folder: log a warning and
ignore the file.

This commit includes an archive that will trigger the exploit by writing
a file to `/tmp/slipped.txt`. This comes from magicOz, who reported the
vulnerability on kevva's decompress repository (issue 71).

Fixes #7319

Signed-off-by: Paul Maréchal <[email protected]>
    @paul-marechal
    paul-marechal committed Mar 13, 2020
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