mirror of
https://github.com/drwetter/testssl.sh.git
synced 2025-01-19 06:59:30 +01:00
Fix non-supported curve initital error message also for STARTTLS
This is the last fix for #1087. It determines STARTTLS_OPTIMAL_PROTO (unless --ssl-native is being used) with sockets per default which removes cases where an openssl s_client connect using STARTTLS failed with the initial message 'doesn't seem to be a TLS/SSL enabled server' and prompt 'Really proceed ? ("yes" to continue)' now shouldn't happen in those cases anymore. To not have redundant code determine_optimal_proto_sockets_helper() is being used for not STARTTLS and plain TLS/SSL. In addition it looked like this determine_optimal_proto() was not always called in the beginning when a STARTTLS scan was requested. Instead determine_service() contained an openssl s_client connect called which was the wrong place and thus removed. Also now determine_optimal_proto() also for STARTTLS will always being called.
This commit is contained in:
Dirk
parent
315005fc6f
commit
c957e4e302
201
testssl.sh
201
testssl.sh
@ -5994,8 +5994,6 @@ run_server_preference() {
|
||||
elif [[ -n "$STARTTLS_PROTOCOL" ]]; then
|
||||
# now it still could be that we hit this bug: https://github.com/drwetter/testssl.sh/issues/188
|
||||
# workaround is to connect with a protocol
|
||||
debugme tm_out "(workaround #188) "
|
||||
determine_optimal_proto $STARTTLS_PROTOCOL
|
||||
[[ ! "$STARTTLS_OPTIMAL_PROTO" =~ ssl ]] && addcmd2="$SNI"
|
||||
$OPENSSL s_client $(s_client_options "$STARTTLS $STARTTLS_OPTIMAL_PROTO -cipher $list_fwd -ciphersuites $tls13_list_fwd $BUGS -connect $NODEIP:$PORT $PROXY $addcmd2") </dev/null 2>$ERRFILE >$TMPFILE
|
||||
if ! sclient_connect_successful $? $TMPFILE; then
|
||||
@ -14271,7 +14269,7 @@ run_tls_fallback_scsv() {
|
||||
fi
|
||||
|
||||
# First determine the highest protocol that the server supports (not including TLSv1.3).
|
||||
if [[ "$OPTIMAL_PROTO" == "-ssl2" ]]; then
|
||||
if [[ "$OPTIMAL_PROTO" == -ssl2 ]]; then
|
||||
prln_svrty_critical "No fallback possible, SSLv2 is the only protocol"
|
||||
fileout "$jsonID" "CRITICAL" "SSLv2 is the only protocol"
|
||||
return 0
|
||||
@ -17345,88 +17343,124 @@ sclient_auth() {
|
||||
}
|
||||
|
||||
|
||||
# This function determines OPTIMAL_PROTO. It is a workaround function as under certain circumstances
|
||||
# (e.g. IIS6.0 and openssl 1.0.2 as opposed to 1.0.1) needs a protocol otherwise s_client -connect will fail!
|
||||
# Circumstances observed so far: 1.) IIS 6 2.) starttls + dovecot imap
|
||||
# This is a helper function for determine_optimal_proto() below. It sets the
|
||||
# the global STARTTLS_OPTIMAL_PROTO / OPTIMAL_PROTO accordingly and returns 1
|
||||
# if no protocol could be determined and 0 if this was possible.
|
||||
#
|
||||
determine_optimal_proto_sockets_helper() {
|
||||
local all_failed=true
|
||||
local proto=""
|
||||
local optimal_proto=""
|
||||
local starttls="$1"
|
||||
|
||||
for proto in 03 01 04 00 02 22; do
|
||||
case $proto in
|
||||
03) tls_sockets "$proto" "$TLS12_CIPHER"
|
||||
if [[ $? -eq 0 ]]; then
|
||||
add_tls_offered tls1_2 yes; optimal_proto="-tls1_2"
|
||||
all_failed=false
|
||||
break
|
||||
elif [[ $? -eq 2 ]]; then
|
||||
case $(get_protocol "$TEMPDIR/$NODEIP.parse_tls_serverhello.txt") in
|
||||
*1.1) add_tls_offered tls1_1 yes; optimal_proto="-tls1_1" ;;
|
||||
TLSv1) add_tls_offered tls1 yes; optimal_proto="-tls1" ;;
|
||||
SSLv3) add_tls_offered ssl3 yes; optimal_proto="-ssl3" ;;
|
||||
esac
|
||||
all_failed=false
|
||||
break
|
||||
fi ;;
|
||||
04) tls_sockets "$proto" "$TLS13_CIPHER"
|
||||
if [[ $? -eq 0 ]]; then
|
||||
add_tls_offered tls1_3 yes; optimal_proto="-tls1_3"
|
||||
all_failed=false
|
||||
break
|
||||
fi ;;
|
||||
01|00|02) tls_sockets "$proto" "$TLS_CIPHER" "" "" "true"
|
||||
if [[ $? -eq 0 ]]; then
|
||||
case $proto in
|
||||
01) add_tls_offered tls1 yes; optimal_proto="-tls1" ;;
|
||||
00) add_tls_offered ssl3 yes; optimal_proto="-ssl3" ;;
|
||||
02) add_tls_offered tls1_1 yes; optimal_proto="-tls1_1" ;;
|
||||
esac
|
||||
all_failed=false
|
||||
break
|
||||
elif [[ $? -eq 2 ]]; then
|
||||
case $(get_protocol "$TEMPDIR/$NODEIP.parse_tls_serverhello.txt") in
|
||||
*1.1) add_tls_offered tls1_1 yes; optimal_proto="-tls1_1" ;;
|
||||
TLSv1) add_tls_offered tls1 yes; optimal_proto="-tls1" ;;
|
||||
SSLv3) add_tls_offered ssl3 yes; optimal_proto="-ssl3" ;;
|
||||
esac
|
||||
all_failed=false
|
||||
break
|
||||
fi ;;
|
||||
22) sslv2_sockets
|
||||
[[ $? -eq 3 ]] && all_failed=false && add_tls_offered ssl2 yes && optimal_proto="-ssl2"
|
||||
;;
|
||||
esac
|
||||
done
|
||||
[[ "$proto" != 22 ]] && cp $TEMPDIR/$NODEIP.parse_tls_serverhello.txt $TMPFILE
|
||||
debugme echo "proto: $proto"
|
||||
|
||||
if [[ -n "$starttls" ]]; then
|
||||
STARTTLS_OPTIMAL_PROTO="$optimal_proto"
|
||||
else
|
||||
OPTIMAL_PROTO="$optimal_proto"
|
||||
fi
|
||||
|
||||
if "$all_failed"; then
|
||||
return 1
|
||||
else
|
||||
return 0
|
||||
fi
|
||||
}
|
||||
|
||||
# This function determines (STARTTLS_)OPTIMAL_PROTO. It is basically is a workaround function as under certain
|
||||
# circumstances (e.g. IIS6.0 and openssl 1.0.2 as opposed to 1.0.1) needs a protocol otherwise s_client -connect will fail!
|
||||
# Circumstances observed so far: 1.) IIS 6 2.) starttls + dovecot imap.
|
||||
# Except those cases it seems reasonable to to know upfront which protocol always works
|
||||
#
|
||||
# arg1: if empty: no STARTTLS, else: STARTTLS protocol
|
||||
# The first try in the loop is empty as we prefer not to specify always a protocol if we can get along w/o it
|
||||
#
|
||||
determine_optimal_proto() {
|
||||
local all_failed=true
|
||||
local tmp=""
|
||||
local proto=""
|
||||
local using_sockets=true
|
||||
|
||||
>$ERRFILE
|
||||
"$SSL_NATIVE" && using_sockets=false
|
||||
|
||||
if [[ -n "$1" ]]; then
|
||||
# starttls workaround needed see https://github.com/drwetter/testssl.sh/issues/188 -- kind of odd
|
||||
for STARTTLS_OPTIMAL_PROTO in -tls1_2 -tls1 -ssl3 -tls1_1 -tls1_3 -ssl2; do
|
||||
case $STARTTLS_OPTIMAL_PROTO in
|
||||
-tls1_3) "$HAS_TLS13" || continue ;;
|
||||
-ssl3) "$HAS_SSL3" || continue ;;
|
||||
-ssl2) "$HAS_SSL2" || continue ;;
|
||||
*) ;;
|
||||
esac
|
||||
#FIXME: to be replaced / added by socket ( if "$using_sockets" ...)
|
||||
$OPENSSL s_client $(s_client_options "$STARTTLS_OPTIMAL_PROTO $BUGS -connect "$NODEIP:$PORT" $PROXY -msg -starttls $1") </dev/null >$TMPFILE 2>>$ERRFILE
|
||||
if sclient_auth $? $TMPFILE; then
|
||||
all_failed=false
|
||||
break
|
||||
fi
|
||||
all_failed=true
|
||||
done
|
||||
"$all_failed" && STARTTLS_OPTIMAL_PROTO=""
|
||||
# STARTTLS
|
||||
if "$using_sockets"; then
|
||||
determine_optimal_proto_sockets_helper "$1"
|
||||
[[ $? -eq 1 ]] && all_failed=true || all_failed=false
|
||||
else
|
||||
# No sockets
|
||||
# STARTTLS workaround needed see https://github.com/drwetter/testssl.sh/issues/188 -- kind of odd
|
||||
for STARTTLS_OPTIMAL_PROTO in -tls1_2 -tls1 -ssl3 -tls1_1 -tls1_3 -ssl2; do
|
||||
case $STARTTLS_OPTIMAL_PROTO in
|
||||
-tls1_3) "$HAS_TLS13" || continue ;;
|
||||
-ssl3) "$HAS_SSL3" || continue ;;
|
||||
-ssl2) "$HAS_SSL2" || continue ;;
|
||||
*) ;;
|
||||
esac
|
||||
#FIXME: to be replaced / added by socket ( if "$using_sockets" ...)
|
||||
$OPENSSL s_client $(s_client_options "$STARTTLS_OPTIMAL_PROTO $BUGS -connect "$NODEIP:$PORT" $PROXY -msg -starttls $1") </dev/null >$TMPFILE 2>>$ERRFILE
|
||||
if sclient_auth $? $TMPFILE; then
|
||||
all_failed=false
|
||||
break
|
||||
fi
|
||||
all_failed=true
|
||||
done
|
||||
"$all_failed" && STARTTLS_OPTIMAL_PROTO=""
|
||||
fi
|
||||
debugme echo "STARTTLS_OPTIMAL_PROTO: $STARTTLS_OPTIMAL_PROTO"
|
||||
else
|
||||
# No STARTTLS
|
||||
if "$using_sockets"; then
|
||||
for proto in 03 01 04 00 02 22; do
|
||||
case $proto in
|
||||
03) tls_sockets "$proto" "$TLS12_CIPHER"
|
||||
if [[ $? -eq 0 ]]; then
|
||||
add_tls_offered tls1_2 yes; OPTIMAL_PROTO="-tls1_2"
|
||||
all_failed=false
|
||||
break
|
||||
elif [[ $? -eq 2 ]]; then
|
||||
case $(get_protocol "$TEMPDIR/$NODEIP.parse_tls_serverhello.txt") in
|
||||
*1.1) add_tls_offered tls1_1 yes; OPTIMAL_PROTO="-tls1_1" ;;
|
||||
TLSv1) add_tls_offered tls1 yes; OPTIMAL_PROTO="-tls1" ;;
|
||||
SSLv3) add_tls_offered ssl3 yes; OPTIMAL_PROTO="-ssl3" ;;
|
||||
esac
|
||||
all_failed=false
|
||||
break
|
||||
fi ;;
|
||||
04) tls_sockets "$proto" "$TLS13_CIPHER"
|
||||
if [[ $? -eq 0 ]]; then
|
||||
add_tls_offered tls1_3 yes; OPTIMAL_PROTO="-tls1_3"
|
||||
all_failed=false
|
||||
break
|
||||
fi ;;
|
||||
01|00|02) tls_sockets "$proto" "$TLS_CIPHER" "" "" "true"
|
||||
if [[ $? -eq 0 ]]; then
|
||||
case $proto in
|
||||
01) add_tls_offered tls1 yes; OPTIMAL_PROTO="-tls1" ;;
|
||||
00) add_tls_offered ssl3 yes; OPTIMAL_PROTO="-ssl3" ;;
|
||||
02) add_tls_offered tls1_1 yes; OPTIMAL_PROTO="-tls1_1" ;;
|
||||
esac
|
||||
all_failed=false
|
||||
break
|
||||
elif [[ $? -eq 2 ]]; then
|
||||
case $(get_protocol "$TEMPDIR/$NODEIP.parse_tls_serverhello.txt") in
|
||||
*1.1) add_tls_offered tls1_1 yes; OPTIMAL_PROTO="-tls1_1" ;;
|
||||
TLSv1) add_tls_offered tls1 yes; OPTIMAL_PROTO="-tls1" ;;
|
||||
SSLv3) add_tls_offered ssl3 yes; OPTIMAL_PROTO="-ssl3" ;;
|
||||
esac
|
||||
all_failed=false
|
||||
break
|
||||
fi ;;
|
||||
22) sslv2_sockets
|
||||
[[ $? -eq 3 ]] && all_failed=false && add_tls_offered ssl2 yes && OPTIMAL_PROTO="-ssl2"
|
||||
;;
|
||||
esac
|
||||
done
|
||||
[[ "$proto" != 22 ]] && cp $TEMPDIR/$NODEIP.parse_tls_serverhello.txt $TMPFILE
|
||||
debugme echo "proto: $proto"
|
||||
determine_optimal_proto_sockets_helper
|
||||
[[ $? -eq 1 ]] && all_failed=true || all_failed=false
|
||||
else
|
||||
# no sockets
|
||||
for OPTIMAL_PROTO in '' -tls1_2 -tls1 -tls1_3 -ssl3 -tls1_1 -ssl2; do
|
||||
@ -17464,14 +17498,14 @@ determine_optimal_proto() {
|
||||
done
|
||||
fi
|
||||
"$all_failed" && OPTIMAL_PROTO=""
|
||||
debugme echo "OPTIMAL_PROTO: $OPTIMAL_PROTO"
|
||||
if [[ "$OPTIMAL_PROTO" == -ssl2 ]]; then
|
||||
prln_magenta "$NODEIP:$PORT appears to only support SSLv2."
|
||||
ignore_no_or_lame " Type \"yes\" to proceed and accept false negatives or positives" "yes"
|
||||
[[ $? -ne 0 ]] && exit $ERR_CLUELESS
|
||||
fi
|
||||
[[ "$proto" != 22 ]] && grep -q '^Server Temp Key' $TMPFILE && HAS_DH_BITS=true # FIX #190
|
||||
debugme echo "OPTIMAL_PROTO: $OPTIMAL_PROTO"
|
||||
fi
|
||||
[[ "$OPTIMAL_PROTO" != -ssl2 ]] && grep -q '^Server Temp Key' $TMPFILE && HAS_DH_BITS=true # FIX #190
|
||||
|
||||
if "$all_failed"; then
|
||||
outln
|
||||
@ -17511,7 +17545,8 @@ determine_optimal_proto() {
|
||||
}
|
||||
|
||||
|
||||
# arg1: ftp smtp, lmtp, pop3, imap, xmpp, telnet, ldap, postgres, mysql, irc, nntp (maybe with trailing s)
|
||||
# arg1 (optional): ftp smtp, lmtp, pop3, imap, xmpp, telnet, ldap, postgres, mysql, irc, nntp (maybe with trailing s)
|
||||
#
|
||||
determine_service() {
|
||||
local ua
|
||||
local protocol error_msg
|
||||
@ -17534,7 +17569,7 @@ determine_service() {
|
||||
outln
|
||||
if [[ -z "$1" ]]; then
|
||||
# no STARTTLS.
|
||||
determine_optimal_proto "$1"
|
||||
determine_optimal_proto
|
||||
$SNEAKY && \
|
||||
ua="$UA_SNEAKY" || \
|
||||
ua="$UA_STD"
|
||||
@ -17595,21 +17630,8 @@ determine_service() {
|
||||
fatal "Your $OPENSSL does not support the \"-starttls nntp\" option" $ERR_OSSLBIN
|
||||
fi
|
||||
fi
|
||||
determine_optimal_proto "$1"
|
||||
|
||||
$OPENSSL s_client $(s_client_options "-connect $NODEIP:$PORT $PROXY $BUGS $STARTTLS") 2>$ERRFILE >$TMPFILE </dev/null
|
||||
if [[ $? -ne 0 ]]; then
|
||||
error_msg="$OPENSSL couldn't connect to $NODEIP:$PORT via STARTTLS using $protocol"
|
||||
debugme cat $TMPFILE | head -25
|
||||
outln
|
||||
if "$MULTIPLE_CHECKS"; then
|
||||
ip_fatal "$error_msg"
|
||||
return 1
|
||||
else
|
||||
fatal " $error_msg" $ERR_CONNECT
|
||||
fi
|
||||
fi
|
||||
|
||||
grep -q '^Server Temp Key' $TMPFILE && HAS_DH_BITS=true # FIX #190
|
||||
out " Service set:$CORRECT_SPACES STARTTLS via "
|
||||
out "$(toupper "$protocol")"
|
||||
[[ "$protocol" == mysql ]] && out " -- attention, this is experimental"
|
||||
@ -18821,6 +18843,7 @@ stopwatch() {
|
||||
}
|
||||
|
||||
|
||||
# arg1(optional): "init" --> just initializing. Or: STARTTLS protocol
|
||||
lets_roll() {
|
||||
local -i ret=0
|
||||
local section_number=1
|
||||
|
||||
Loading…
Reference in New Issue
Block a user