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testssl.sh
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Further changes to run_server_preference() 

In order not to provide redundant information run_allciphers() is
now not being run via default (1). Therefore run_server_preference()
runs always in wide mode.

In order to archieve that cipher_pref_check() was modified to
accept a fifth argument whether it'll run in wide mode. As
of now cipher_pref_check() is only called by run_server_preference(),
so the code referring to non-wide mode in cipher_pref_check() may also
be deleted in the future.

To provide a better view the run_fs() section is now being run after
run_server_preference().

(1) saves also 5-6 seconds
This commit is contained in:
Dirk Wetter 2020-04-24 13:32:26 +02:00
parent a86ccb6968
commit 3e54f4e4cd
1 changed files with 32 additions and 43 deletions
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39
testssl.sh
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@ -6530,17 +6530,14 @@ run_server_preference() {
"$FAST" && using_sockets=false
[[ $TLS_NR_CIPHERS == 0 ]] && using_sockets=false
# TODO: Shouldn't say "Cipher order" if the server does not always impose an order.
# TODO: In non-wide mode, need to distinguish between those order by server preference and those ordered by encryption strength.
pr_bold " Cipher listing per protocol"
"$WIDE" && outln "\n" && neat_header
pr_bold " Cipher per protocol"
outln "\n" && neat_header
while read proto_ossl proto_hex proto_txt; do
if "$WIDE"; then
pr_underline "$(printf -- "%b" "$proto_txt")"
# TODO: If there's no cipher we should consider not displaying the text in the round brackets)
# the following takes care of that but only if we know the protocol is not supported
if [[ $(has_server_protocol "$proto_ossl") -eq 1 ]]; then
"$WIDE" && outln "\n - "
outln "\n - "
continue
fi
# TODO: Also the fact that a protocol is not supported seems not to be saved by cipher_pref_check()
@ -6555,22 +6552,13 @@ run_server_preference() {
else
prln_svrty_high " (no server order, thus listed by strength)"
fi
ciphers_by_strength "-$proto_ossl" "$proto_hex" "$proto_txt" "$using_sockets" "$WIDE"
ciphers_by_strength "-$proto_ossl" "$proto_hex" "$proto_txt" "$using_sockets" "true"
else
outln " (server order)"
cipher_pref_check "$proto_ossl" "$proto_hex" "$proto_txt" "$using_sockets"
fi
else
if [[ "$proto_ossl" == ssl2 ]] || ( [[ "$proto_ossl" != tls1_3 ]] && ! "$has_cipher_order" ]] ) || \
( [[ "$proto_ossl" == tls1_3 ]] && ! "$has_tls13_cipher_order" ]] ); then
ciphers_by_strength "-$proto_ossl" "$proto_hex" "$proto_txt" "$using_sockets" "$WIDE"
else
cipher_pref_check "$proto_ossl" "$proto_hex" "$proto_txt" "$using_sockets"
fi
cipher_pref_check "$proto_ossl" "$proto_hex" "$proto_txt" "$using_sockets" "true"
fi
done <<< "$(tm_out " ssl2 22 SSLv2\n ssl3 00 SSLv3\n tls1 01 TLSv1\n tls1_1 02 TLSv1.1\n tls1_2 03 TLSv1.2\n tls1_3 04 TLSv1.3\n")"
outln
outln
return $ret
# end of run_server_preference()
@ -6658,6 +6646,7 @@ check_tls12_pref() {
cipher_pref_check() {
local p="$1" proto_hex="$2" proto="$3"
local using_sockets="$4"
local wide="$5" # at the moment this is called ALWAYS via run_server_preference and ALWAYS w true
local tested_cipher cipher order rfc_cipher rfc_order
local overflow_probe_cipherlist="ALL:-ECDHE-RSA-AES256-GCM-SHA384:-AES128-SHA:-DES-CBC3-SHA"
local -i i nr_ciphers nr_nonossl_ciphers num_bundles bundle_size bundle end_of_bundle success
@ -6680,11 +6669,11 @@ cipher_pref_check() {
if ( [[ $p != tls1_3 ]] || "$HAS_TLS13" ) && ( [[ $p != ssl3 ]] || "$HAS_SSL3" ); then
if [[ $p == tls1_2 ]] && "$SERVER_SIZE_LIMIT_BUG"; then
order="$(check_tls12_pref "$WIDE")"
order="$(check_tls12_pref "$wide")"
[[ "${order:0:1}" == \ ]] && order="${order:1}"
ciphers_found="$order"
fi
if "$WIDE" || [[ -z "$order" ]]; then
if "$wide" || [[ -z "$order" ]]; then
tested_cipher=""; order=""; nr_ciphers_found=0
while true; do
if [[ $p != tls1_3 ]]; then
@ -6713,7 +6702,7 @@ cipher_pref_check() {
order+="$cipher "
tested_cipher+=":-"$cipher
"$FAST" && break
if "$WIDE"; then
if "$wide"; then
for (( i=0; i < TLS_NR_CIPHERS; i++ )); do
[[ "$cipher" == ${TLS_CIPHER_OSSL_NAME[i]} ]] && break
done
@ -6843,7 +6832,7 @@ cipher_pref_check() {
for (( i=0; i < nr_ciphers; i++ )); do
[[ "$cipher" == ${rfc_ciph[i]} ]] && ciphers_found2[i]=true && break
done
if "$WIDE"; then
if "$wide"; then
for (( i=0; i < TLS_NR_CIPHERS; i++ )); do
[[ "$cipher" == ${TLS_CIPHER_RFC_NAME[i]} ]] && break
done
@ -6884,7 +6873,7 @@ cipher_pref_check() {
if [[ -n "$order" ]]; then
add_tls_offered "$p" yes
if "$WIDE"; then
if "$wide"; then
for (( i=0 ; i<nr_ciphers_found; i++ )); do
neat_list "${normalized_hexcode[i]}" "${ciph[i]}" "${kx[i]}" "${enc[i]}" "${export2[i]}" "true"
outln "${sigalg[i]}"
@ -20348,7 +20337,7 @@ initialize_globals() {
# Set default scanning options for the boolean global do_* variables.
set_scanning_defaults() {
do_allciphers=true
do_allciphers=false
do_vulnerabilities=true
do_beast=true
do_lucky13=true
@ -21099,10 +21088,10 @@ lets_roll() {
"$do_cipherlists" && { run_cipherlists; ret=$(($? + ret)); stopwatch run_cipherlists; }
fileout_section_header $section_number true && ((section_number++))
"$do_fs" && { run_fs; ret=$(($? + ret)); stopwatch run_fs; }
"$do_server_preference" && { run_server_preference; ret=$(($? + ret)); stopwatch run_server_preference; }
fileout_section_header $section_number true && ((section_number++))
"$do_server_preference" && { run_server_preference; ret=$(($? + ret)); stopwatch run_server_preference; }
"$do_fs" && { run_fs; ret=$(($? + ret)); stopwatch run_fs; }
fileout_section_header $section_number true && ((section_number++))
"$do_server_defaults" && { run_server_defaults; ret=$(($? + ret)); stopwatch run_server_defaults; }