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Merge pull request #1170 from dcooper16/fix990

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Fix #990
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Dirk Wetter 2018-12-04 21:36:49 +01:00 committed by GitHub
commit 78722ef982
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1 changed files with 16 additions and 1 deletions
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testssl.sh
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@ -11905,7 +11905,7 @@ prepare_tls_clienthello() {
local extension_signature_algorithms extension_heartbeat session_id
local extension_session_ticket extension_next_protocol extension_padding
local extension_supported_groups="" extension_supported_point_formats=""
local extensions_key_share="" extn_type supported_groups_c2n=""
local extensions_key_share="" extn_type supported_groups_c2n="" extn_psk_mode=""
local extra_extensions extra_extensions_list="" extension_supported_versions=""
local offer_compression=false compression_methods
@ -12003,6 +12003,9 @@ prepare_tls_clienthello() {
extension_next_protocol="
33, 74, 00, 00"
extn_psk_mode="
00, 2d, 00, 02, 01, 01"
if "$ecc_cipher_suite_found"; then
# Supported Groups Extension
extension_supported_groups="
@ -12124,6 +12127,15 @@ prepare_tls_clienthello() {
fi
fi
# There does not seem to be any reason to include this extension. However, it appears that
# OpenSSL, Firefox, and Chrome include it in TLS 1.3 ClientHello messages, and there is at
# least one server that will fail the connection if it is absent
# (see https://github.com/drwetter/testssl.sh/issues/990).
if [[ "0x$tls_low_byte" -ge "0x04" ]] && [[ ! "$extra_extensions_list" =~ " 002d " ]]; then
[[ -n "$all_extensions" ]] && all_extensions+=","
all_extensions+="$extn_psk_mode"
fi
if [[ ! "$extra_extensions_list" =~ " 0023 " ]]; then
[[ -n "$all_extensions" ]] && all_extensions+=","
all_extensions+="$extension_session_ticket"
@ -15213,6 +15225,9 @@ run_grease() {
# values in the supported_versions extension.
# see https://www.ietf.org/mail-archive/web/tls/current/msg22319.html
# TODO: For servers that support TLSv1.3, check that servers don't require the
# psk_key_exchange_modes extension to be present in the ClientHello.
if ! "$bug_found"; then
outln " No bugs found."
fileout "$jsonID" "OK" "No bugs found."