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Merge pull request #1119 from NicolaiSoeborg/add-MOR-bit-check 

Check MemoryOverwriteRequest Control
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Michael Boelen 2021-05-11 19:56:55 +02:00 committed by GitHub
parent 4cfd59d60c 3d2f57fe1d
commit efc71ae6bb
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1 changed files with 26 additions and 0 deletions
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include/tests_crypto
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@ -292,6 +292,32 @@
fi
#
#################################################################################
#
# Test : CRYP-8006
# Description : Check that the MemoryOverwriteRequest-bit is set to protect against cold-boot attacks
Register --test-no CRYP-8006 --os Linux --weight L --network NO --root-only NO --category security --description "MemoryOverwriteRequest-bit set"
if [ ${SKIPTEST} -eq 0 ]; then
MOR_CONTROL="${ROOTDIR}sys/firmware/efi/efivars/MemoryOverwriteRequestControl-e20939be-32d4-41be-a150-897f85d49829"
LogText "Test: looking for ${MOR_CONTROL}"
if [ -f "${MOR_CONTROL}" ]; then
DATA=$(od -An --skip-bytes=4 "$MOR_CONTROL")
if [ "$DATA" = " 000001" ]; then
LogText "Result: MOR-bit set"
Display --indent 2 --text "MOR-bit set" --result "${STATUS_YES}" --color GREEN
elif [ "$DATA" = " 000000" ]; then
LogText "Result: MOR-bit not set!"
Display --indent 2 --text "MOR-bit set" --result "${STATUS_NO}" --color RED
else
LogText "Result: MOR-bit unknown. Found: $DATA"
Display --indent 2 --text "MOR-bit set" --result "${STATUS_UNKNOWN}" --color YELLOW
fi
else
LogText "Result: could not find ${MOR_CONTROL}"
Display --indent 2 --text "- MOR variable not found" --result "${STATUS_WEAK}" --color WHITE
fi
fi
#
#################################################################################
#
Report "rng_found=${RNG_FOUND}"
#