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Unblob it in case binwalk fails #421

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merged 3 commits into from
Dec 5, 2022
Merged

Unblob it in case binwalk fails #421

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085bef7
unblob it in case binwalk fails
m-1-k-3 Dec 4, 2022
5f81cf4
unrar dep#
m-1-k-3 Dec 4, 2022
1ce811e
tree output
m-1-k-3 Dec 5, 2022
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1 change: 1 addition & 0 deletions helpers/helpers_emba_dependency_check.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -394,6 +394,7 @@ dependency_check()
export MPLCONFIGDIR="$TMP_DIR"

setup_unblob "unblob"
check_dep_tool "unrar" "unrar"
setup_nikto

# jtr
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2 changes: 2 additions & 0 deletions installer/IP99_binwalk_default.sh
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Expand Up @@ -68,6 +68,8 @@ IP99_binwalk_default() {
# python-setuptools is needed for ubireader installation
print_tool_info "python-setuptools" 1
print_tool_info "srecord" 1
print_tool_info "unrar-free" 1
print_tool_info "unrar" 1

print_pip_info "nose"
print_pip_info "coverage"
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10 changes: 8 additions & 2 deletions modules/P61_unblob_eval.sh
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Expand Up @@ -69,7 +69,7 @@ P61_unblob_eval() {
print_output "[*] Unblob module currently enabled - disable it in emba.sh setting the UNBLOB variable to 0"

print_output "[!] INFO: This is an evaluation module for the extractor ${ORANGE}unblob - https://unblob.org/$MAGENTA."
print_output "[!] INFO: The results are currently not further used in the EMBA firmware analysis process (this will probably change in the future)."
print_output "[!] INFO: The results are currently only further used if the binwalk extraction process failes (this will probably change in the future)."

export LINUX_PATH_COUNTER_UNBLOB=0
local OUTPUT_DIR_UNBLOB="$LOG_PATH_MODULE"/unblob_extracted
Expand Down Expand Up @@ -104,7 +104,13 @@ P61_unblob_eval() {
print_output "[*] Found $ORANGE$BINS$NC binaries."
print_output "[*] Additionally the Linux path counter is $ORANGE$LINUX_PATH_COUNTER$NC."
print_bar
tree -sh "$OUTPUT_DIR_UNBLOB" | tee -a "$LOG_FILE"
if [[ "$LINUX_PATH_COUNTER" -eq 0 ]] && [[ "$LINUX_PATH_COUNTER_UNBLOB" -gt 0 ]]; then
print_output "[+] Binwalk extraction failed - using Unblob results as additional source for further analysis"
mv "$OUTPUT_DIR_UNBLOB" "$LOG_DIR"/firmware/ || true
detect_root_dir_helper "$LOG_DIR/firmware"
print_ln
fi
tree -sh "$LOG_DIR/firmware/unblob_extracted" | tee -a "$LOG_FILE"
print_ln
fi

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2 changes: 2 additions & 0 deletions modules/S06_distribution_identification.sh
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Expand Up @@ -144,6 +144,8 @@ get_csv_rule_distri() {
# F5 BigIP
VERSION_IDENTIFIER="$(echo "$VERSION_IDENTIFIER" | sed -r 's/big-ip\ ltm\ ([0-9]+(\.[0-9]+)+?)/f5:big-ip_local_traffic_manager:\1/')"
VERSION_IDENTIFIER="$(echo "$VERSION_IDENTIFIER" | sed -r 's/big-ip\ asm\ ([0-9]+(\.[0-9]+)+?)/f5:big-ip_application_security_manager:\1/')"
# Yocto linux - e.g.: poky:(yocto:project:reference:distro):2.2:(morty)
VERSION_IDENTIFIER="$(echo "$VERSION_IDENTIFIER" | sed -r 's/.*\(yocto:project:reference:distro\):([0-9]+(\.[0-9]+)+?):\(.*\)$/yoctoproject:yocto:\1/')"
# Buildroot 2022.01.01
VERSION_IDENTIFIER="$(echo "$VERSION_IDENTIFIER" | sed -r 's/buildroot\ ([0-9]+(\.[0-9]+)+?)/buildroot:\1/')"
VERSION_IDENTIFIER="${VERSION_IDENTIFIER// /:}"
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