fix(pipeline): do preliminary checks for checksum invalid chars #1659
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Signed-off-by: Luca Di Maio <luca.dimaio1@gmail.com>
xnox
reviewed
Nov 19, 2024
Signed-off-by: Luca Di Maio <luca.dimaio1@gmail.com>
imjasonh
approved these changes
Nov 19, 2024
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Fix https://github.com/chainguard-dev/internal-dev/issues/1571
We don't want to pass possible code execution to
expected-sha{256,512}, the comparison is done in shellthis opens the possibility to inject values and/or commands.
SHA checksums only contains [0-9a-zA-Z] chars, so ensure we only have those. This will prevent any injection at that stage.