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Introducing 3 hexdump commands

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`hexdump -C` is used in verbose mode to see what is going on. Unfortunately, it's not possible to get more than 16 columns
`hexdump -ve '16/1 "%02x " " \n"'` is used to analyse the reply given by the server. There is no offset and no human readable character output
`hexdump -ve '1/1 "%.2x"'` is used to generate a pure hexadecimal stream of data
This commit is contained in:
Olivier Paroz 2014-09-24 13:08:24 +02:00
parent 3785ddb48b
commit 7289d49f6c
1 changed files with 7 additions and 7 deletions
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14
testssl.sh
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@ -81,8 +81,9 @@ IPS=""
MAX_WAITSOCK=10 # waiting at max 10 seconds for socket reply
# The various hexdump commands we need to replace xdd
HEXDUMP=(hexdump -ve '"%07_ax " 16/2 "%06o " " \n"')
HEXDUMPPLAIN=(hexdump -ve '30/1 "%.2x" "\n"')
HEXDUMPVIEW=(hexdump -C) # This is used in verbose mode to see what's going on
HEXDUMP=(hexdump -ve '16/1 "%02x " " \n"') # This is used to analyse the reply
HEXDUMPPLAIN=(hexdump -ve '1/1 "%.2x"') # Replaces both xxd -p and tr -cd '[:print:]'
go2_column() { $ECHO "\033[${1}G"; }
@ -1044,7 +1045,7 @@ ccs_injection(){
if [ $VERBOSE -eq 1 ]; then
outln "\n server hello:"
echo "$SOCKREPLY" | "${HEXDUMP[@]}" | head -20
echo "$SOCKREPLY" | "${HEXDUMPVIEW[@]}" | head -20
outln "[...]"
outln "payload with TLS version $tls_hexcode:"
fi
@ -1056,7 +1057,7 @@ ccs_injection(){
if [ $VERBOSE -eq 1 ]; then
outln "\n reply: "
echo "$SOCKREPLY" | "${HEXDUMP[@]}"
echo "$SOCKREPLY" | "${HEXDUMPVIEW[@]}"
outln
fi
@ -1159,7 +1160,7 @@ heartbleed(){
if [ $VERBOSE -eq 1 ]; then
outln "\n server hello:"
echo "$SOCKREPLY" | "${HEXDUMP[@]}" | head -20
echo "$SOCKREPLY" | "${HEXDUMPVIEW[@]}" | head -20
outln "[...]"
outln " sending payload with TLS version $tls_hexcode:"
fi
@ -1170,11 +1171,10 @@ heartbleed(){
if [ $VERBOSE -eq 1 ]; then
outln "\n heartbleed reply: "
echo "$SOCKREPLY" | "${HEXDUMP[@]}"
echo "$SOCKREPLY" | "${HEXDUMPVIEW[@]}"
outln
fi
# iS - Does this need to be a different hexdump command?
lines_returned=`echo "$SOCKREPLY" | "${HEXDUMP[@]}" | wc -l`
if [ $lines_returned -gt 1 ]; then
red "VULNERABLE"