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Extract cipher suites from SSLv2 ClientHello

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This commit is contained in:
David Cooper 2017-07-24 11:26:18 -04:00 committed by GitHub
parent 91927e0f59
commit c370f2359b
1 changed files with 12 additions and 6 deletions
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18
testssl.sh
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@ -3446,12 +3446,18 @@ client_simulation_sockets() {
for (( i=0; i < len; i=i+2 )); do
data+=", ${clienthello:i:2}"
done
# Extact list of cipher suites
sid_len=4*$(hex2dec "${data:174:2}")
offset1=178+$sid_len
offset2=182+$sid_len
len=4*$(hex2dec "${data:offset1:2}${data:offset2:2}")-2
offset1=186+$sid_len
if [[ "${1:0:4}" == "1603" ]]; then
# Extact list of cipher suites from SSLv3 or later ClientHello
sid_len=4*$(hex2dec "${data:174:2}")
offset1=178+$sid_len
offset2=182+$sid_len
len=4*$(hex2dec "${data:offset1:2}${data:offset2:2}")-2
offset1=186+$sid_len
else
# Extact list of cipher suites from SSLv2 ClientHello
offset1=46
len=4*$(hex2dec "${data:26:2}")-2
fi
code2network "$(tolower "${data:offset1:len}")" # convert CIPHER_SUITES to a "standardized" format
cipher_list_2send="$NW_STR"