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Try to fix the renegotiation problem

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as suggested, see https://github.com/testssl/testssl.sh/issues/2765#issuecomment-2891140503
This commit is contained in:
Dirk Wetter
2025-05-19 16:24:46 +02:00
parent a685fc252d
commit 85d8d44fbe
1 changed files with 2 additions and 2 deletions
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testssl.sh
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@@ -17656,7 +17656,7 @@ run_renego() {
# s_client STDIN too early as the close could come at any time and race with the tear down of s_client.
# See https://github.com/drwetter/testssl.sh/issues/2590
# In this case the added iteration is harmless as it will just spin in backgroup
for ((i=0; i <= ssl_reneg_attempts; i++ )); do sleep $ssl_reneg_wait; /usr/bin/echo R 2>/dev/null; k=0; \
for ((i=0; i <= ssl_reneg_attempts; i++ )); do sleep $ssl_reneg_wait; echo R 2>/dev/null; k=0; \
# 0 means client is renegotiating & doesn't return an error --> vuln!
# 1 means client tried to renegotiating but the server side errored then. You still see RENEGOTIATING in the output
# Exemption from above: server closed the connection but return value was zero
@@ -17665,7 +17665,7 @@ run_renego() {
&& [[ $(tail -1 $ERRFILE | grep -acE '^(RENEGOTIATING|depth|verify|notAfter)') -eq 1 ]] \
&& [[ $k -lt 120 ]]; \
do sleep $ssl_reneg_wait; ((k++)); if (tail -5 $TMPFILE| grep -qa '^closed'); then break; fi; done; \
done) | \
done) 2> /dev/null | \
$OPENSSL_NOTIMEOUT s_client $(s_client_options "$proto $legacycmd $STARTTLS $BUGS -connect $NODEIP:$PORT $PROXY $SNI") >$TMPFILE 2>$ERRFILE &
pid=$!
( sleep $((ssl_reneg_attempts*3+3)) && kill $pid && touch $TEMPDIR/was_killed ) >&2 2>/dev/null &