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Hexagon support #467

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merged 3 commits into from
Jan 31, 2023
Merged

Hexagon support #467

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48d840d
s115 - hexagon support
m-1-k-3 Jan 30, 2023
f077ccd
clean it
m-1-k-3 Jan 30, 2023
a2fdc3c
s14 hexagon support
m-1-k-3 Jan 31, 2023
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2 changes: 2 additions & 0 deletions modules/S115_usermode_emulator.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -164,6 +164,8 @@ S115_usermode_emulator() {
EMULATOR="qemu-ppc-static"
elif ( file "$FULL_BIN_PATH" | grep -q "ELF 32-bit LSB executable, Altera Nios II" ) ; then
EMULATOR="qemu-nios2-static"
elif ( file "$FULL_BIN_PATH" | grep -q "ELF 32-bit LSB shared object, QUALCOMM DSP6" ) ; then
EMULATOR="qemu-hexagon-static"
else
print_output "[-] No working emulator found for $BIN_"
EMULATOR="NA"
Expand Down
10 changes: 7 additions & 3 deletions modules/S13_weak_func_check.sh
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Expand Up @@ -31,6 +31,8 @@ S13_weak_func_check()
local BINARY=""
local VULNERABLE_FUNCTIONS=()
local VULNERABLE_FUNCTIONS_VAR=""
local ERR_PRINTED=0

if [[ -n "$ARCH" ]] ; then
# This module waits for S12 - binary protections
# check emba.log for S12_binary_protection starting
Expand Down Expand Up @@ -105,9 +107,11 @@ S13_weak_func_check()
function_check_NIOS2 "$BINARY" "${VULNERABLE_FUNCTIONS[@]}"
fi
elif ( file "$BINARY" | grep -q "QUALCOMM DSP6" ) ; then
print_output "[-] Qualcom DSP6 is currently not supported for further analysis"
print_output "[-] Tested binary: $ORANGE$BINARY$NC"
print_output "[-] Please check for updates: https://github.com/e-m-b-a/emba/issues/395"
if [[ "$ERR_PRINTED" -eq 0 ]]; then
print_output "[-] Qualcom DSP6 is currently not supported from objdump"
print_output "[-] The binaries will be analysed from radare2 module s14"
ERR_PRINTED=1
fi
else
print_output "[-] Something went wrong ... no supported architecture available"
print_output "[-] Tested binary: $ORANGE$BINARY$NC"
Expand Down
52 changes: 49 additions & 3 deletions modules/S14_weak_func_radare_check.sh
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Expand Up @@ -100,9 +100,13 @@ S14_weak_func_radare_check()
radare_function_check_PPC32 "$BINARY" "${VULNERABLE_FUNCTIONS[@]}"
fi
elif ( file "$BINARY" | grep -q "QUALCOMM DSP6" ) ; then
print_output "[-] Qualcom DSP6 is currently not supported for further analysis"
print_output "[-] Tested binary: $ORANGE$BINARY$NC"
print_output "[-] Please check for updates: https://github.com/e-m-b-a/emba/issues/395"
if [[ "$THREADED" -eq 1 ]]; then
radare_function_check_hexagon "$BINARY" "${VULNERABLE_FUNCTIONS[@]}" &
WAIT_PIDS_S14+=( "$!" )
else
radare_function_check_hexagon "$BINARY" "${VULNERABLE_FUNCTIONS[@]}"
fi

else
print_output "[-] Something went wrong ... no supported architecture available"
print_output "[-] Tested binary: $ORANGE$BINARY$NC"
Expand Down Expand Up @@ -297,6 +301,48 @@ radare_function_check_ARM32() {
echo "$STRCPY_CNT" >> "$TMP_DIR"/S14_STRCPY_CNT.tmp
}

radare_function_check_hexagon() {
local BINARY_="${1:-}"
shift 1
local VULNERABLE_FUNCTIONS=("$@")
local NAME=""
NAME=$(basename "$BINARY_" 2> /dev/null)
local STRCPY_CNT=0
if ! [[ -f "$BINARY_" ]]; then
return
fi

NETWORKING=$(readelf -a "$BINARY_" --use-dynamic 2> /dev/null | grep -E "FUNC[[:space:]]+UND" | grep -c "\ bind\|\ socket\|\ accept\|\ recvfrom\|\ listen" 2> /dev/null || true)
for FUNCTION in "${VULNERABLE_FUNCTIONS[@]}" ; do
if ( readelf -s --use-dynamic "$BINARY_" | grep -q "$FUNCTION" 2> /dev/null ) ; then
FUNC_LOG="$LOG_PATH_MODULE""/vul_func_""$FUNCTION""-""$NAME"".txt"
radare_log_bin_hardening "$NAME" "$FUNCTION"
if [[ "$FUNCTION" == "mmap" ]] ; then
# For the mmap check we need the disasm after the call
r2 -e io.cache=true -e scr.color=false -q -c 'pI $s' "$BINARY_" | grep -E -A 20 "call.*$FUNCTION" 2> /dev/null >> "$FUNC_LOG" || true
else
r2 -e io.cache=true -e scr.color=false -q -c 'pI $s' "$BINARY_" | grep -E -A 2 -B 20 "call.*$FUNCTION" 2> /dev/null >> "$FUNC_LOG" || true
fi
if [[ -f "$FUNC_LOG" ]] && [[ $(wc -l "$FUNC_LOG" | awk '{print $1}') -gt 0 ]] ; then
radare_color_output "$FUNCTION"

COUNT_FUNC="$(grep -c -e "call.*$FUNCTION" "$FUNC_LOG" 2> /dev/null || true)"
if [[ "$FUNCTION" == "strcpy" ]] ; then
COUNT_STRLEN=$(grep -c "call.*strlen" "$FUNC_LOG" 2> /dev/null || true)
STRCPY_CNT=$((STRCPY_CNT+COUNT_FUNC))
elif [[ "$FUNCTION" == "mmap" ]] ; then
# Test source: https://www.golem.de/news/mmap-codeanalyse-mit-sechs-zeilen-bash-2006-148878-2.html
# TODO: check this in radare2
COUNT_MMAP_OK="NA"
fi
radare_log_func_footer "$NAME" "$FUNCTION"
radare_output_function_details "$BINARY_" "$FUNCTION"
fi
fi
done
echo "$STRCPY_CNT" >> "$TMP_DIR"/S14_STRCPY_CNT.tmp
}

radare_function_check_x86() {
local BINARY_="${1:-}"
shift 1
Expand Down