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Add DH groups to supported_groups 

There is at least one server that will not negotiate TLS_DHE_* cipher suites with TLS 1.2 and below if the supported_groups extension is present but does not include any DH groups. This commit adds the DH groups that are currently in the TLS 1.3 ClientHello to the TLS 1.2 and earlier ClientHello.
This commit is contained in:
David Cooper 2022-03-09 10:33:51 -05:00
parent b3e4ac8934
commit 3cd8e810ac
1 changed files with 2 additions and 2 deletions
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testssl.sh
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@ -15025,11 +15025,11 @@ prepare_tls_clienthello() {
# Supported Groups Extension
extension_supported_groups="
00, 0a, # Type: Supported Elliptic Curves , see RFC 4492
00, 3e, 00, 3c, # lengths
00, 42, 00, 40, # lengths
00, 0e, 00, 0d, 00, 19, 00, 1c, 00, 1e, 00, 0b, 00, 0c, 00, 1b,
00, 18, 00, 09, 00, 0a, 00, 1a, 00, 16, 00, 17, 00, 1d, 00, 08,
00, 06, 00, 07, 00, 14, 00, 15, 00, 04, 00, 05, 00, 12, 00, 13,
00, 01, 00, 02, 00, 03, 00, 0f, 00, 10, 00, 11"
00, 01, 00, 02, 00, 03, 00, 0f, 00, 10, 00, 11, 01, 00, 01, 01"
elif [[ 0x$tls_low_byte -gt 0x03 ]]; then
# Supported Groups Extension
if [[ ! "$process_full" =~ all ]] || ( "$HAS_X25519" && "$HAS_X448" ); then