d2bfe1b071
specially-crafted derivations that produce output paths belonging to other derivations. This could be used to inject malware into the store.
37 lines
1 KiB
Bash
37 lines
1 KiB
Bash
# Test that users cannot register specially-crafted derivations that
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# produce output paths belonging to other derivations. This could be
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# used to inject malware into the store.
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source common.sh
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clearStore
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clearManifests
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startDaemon
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# Determine the output path of the "good" derivation.
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goodOut=$($nixstore -q $($nixinstantiate ./secure-drv-outputs.nix -A good))
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# Instantiate the "bad" derivation.
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badDrv=$($nixinstantiate ./secure-drv-outputs.nix -A bad)
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badOut=$($nixstore -q $badDrv)
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# Rewrite the bad derivation to produce the output path of the good
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# derivation.
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rm -f $TEST_ROOT/bad.drv
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sed -e "s|$badOut|$goodOut|g" < $badDrv > $TEST_ROOT/bad.drv
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# Add the manipulated derivation to the store and build it. This
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# should fail.
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if badDrv2=$($nixstore --add $TEST_ROOT/bad.drv); then
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$nixstore -r "$badDrv2"
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fi
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# Now build the good derivation.
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goodOut2=$($nixbuild ./secure-drv-outputs.nix -A good)
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test "$goodOut" = "$goodOut2"
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if ! test -e "$goodOut"/good; then
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echo "Bad derivation stole the output path of the good derivation!"
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exit 1
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fi
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