haproxy/reg-tests/ssl/add_ssl_crt-list.vtc
William Lallemand cb6c5f4683 BUG/MEDIUM: ssl/cli: crash when crt inserted into a crt-list
The crash occures when the same certificate which is used on both a
server line and a bind line is inserted in a crt-list over the CLI.

This is quite uncommon as using the same file for a client and a server
certificate does not make sense in a lot of environments.

This patch fixes the issue by skipping the insertion of the SNI when no
bind_conf is available in the ckch_inst.

Change the reg-test to reproduce this corner case.

Should fix issue #1748.

Must be backported as far as 2.2. (it was previously in ssl_sock.c)
2022-06-20 17:27:49 +02:00

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#REGTEST_TYPE=devel
# This reg-test uses the "add ssl crt-list" command to add a certificate over the CLI.
# It requires socat to upload the certificate
# this check does 2 requests, the first one will use "www.test1.com" as SNI, and
# the second one will use "localhost". Since vtest can't do SSL, we use haproxy
# as an SSL client with 2 chained listen section.
# If this test does not work anymore:
# - Check that you have socat
varnishtest "Test the 'add ssl crt-list' feature of the CLI"
#REQUIRE_VERSION=2.2
#REQUIRE_OPTIONS=OPENSSL
feature cmd "command -v socat"
feature ignore_unknown_macro
server s1 -repeat 2 {
rxreq
txresp
} -start
haproxy h1 -conf {
global
tune.ssl.default-dh-param 2048
tune.ssl.capture-buffer-size 1
crt-base ${testdir}
stats socket "${tmpdir}/h1/stats" level admin
defaults
mode http
option httplog
log stderr local0 debug err
option logasap
timeout connect "${HAPROXY_TEST_TIMEOUT-5s}"
timeout client "${HAPROXY_TEST_TIMEOUT-5s}"
timeout server "${HAPROXY_TEST_TIMEOUT-5s}"
listen clear-lst
bind "fd@${clearlst}"
balance roundrobin
server s1 "${tmpdir}/ssl.sock" ssl verify none sni str(www.test1.com)
server s2 "${tmpdir}/ssl.sock" ssl verify none sni str(localhost)
listen ssl-lst
mode http
bind "${tmpdir}/ssl.sock" ssl strict-sni crt-list ${testdir}/localhost.crt-list
server s1 ${s1_addr}:${s1_port}
server s2 ${s1_addr}:${s1_port} ssl crt "${testdir}/common.pem" weight 0 verify none
} -start
haproxy h1 -cli {
send "show ssl cert ${testdir}/common.pem"
expect ~ ".*SHA1 FingerPrint: 2195C9F0FD58470313013FC27C1B9CF9864BD1C6"
}
client c1 -connect ${h1_clearlst_sock} {
txreq
rxresp
expect resp.status == 200
} -run
shell {
echo "new ssl cert ${testdir}/ecdsa.pem" | socat "${tmpdir}/h1/stats" -
printf "set ssl cert ${testdir}/ecdsa.pem <<\n$(cat ${testdir}/ecdsa.pem)\n\n" | socat "${tmpdir}/h1/stats" -
echo "commit ssl cert ${testdir}/ecdsa.pem" | socat "${tmpdir}/h1/stats" -
printf "add ssl crt-list ${testdir}/localhost.crt-list/ <<\n${testdir}/common.pem [ssl-min-ver SSLv3 verify none allow-0rtt] !*\n\n" | socat "${tmpdir}/h1/stats" -
printf "add ssl crt-list ${testdir}/localhost.crt-list/ <<\n${testdir}/ecdsa.pem [ssl-min-ver SSLv3 verify none allow-0rtt] localhost !www.test1.com\n\n" | socat "${tmpdir}/h1/stats" -
printf "add ssl crt-list ${testdir}/localhost.crt-list <<\n${testdir}/ecdsa.pem [verify none allow-0rtt]\n\n" | socat "${tmpdir}/h1/stats" -
printf "add ssl crt-list ${testdir}/localhost.crt-list/// <<\n${testdir}/ecdsa.pem localhost !www.test1.com\n\n" | socat "${tmpdir}/h1/stats" -
printf "add ssl crt-list ${testdir}/localhost.crt-list///// <<\n${testdir}/ecdsa.pem\n\n" | socat "${tmpdir}/h1/stats" -
printf "add ssl crt-list ${testdir}/localhost.crt-list// ${testdir}/ecdsa.pem\n" | socat "${tmpdir}/h1/stats" -
}
haproxy h1 -cli {
send "show ssl cert ${testdir}/ecdsa.pem"
expect ~ ".*SHA1 FingerPrint: A490D069DBAFBEE66DE434BEC34030ADE8BCCBF1"
}
haproxy h1 -cli {
send "show ssl crt-list ${testdir}/localhost.crt-list//"
# check the options and the filters in any order
expect ~ ".*${testdir}/ecdsa.pem \\[(?=.*verify none)(?=.*allow-0rtt)(?=.*ssl-min-ver SSLv3).*\\](?=.*!www.test1.com)(?=.*localhost).*"
}
client c1 -connect ${h1_clearlst_sock} {
txreq
rxresp
expect resp.status == 200
} -run
# Try to add a new line that mentions an "unknown" CA file (not loaded yet).
# It should fail since no disk access are allowed during runtime.
shell {
printf "add ssl crt-list ${testdir}/localhost.crt-list/ <<\n${testdir}/ecdsa.pem [ca-file ${testdir}/ca-auth.crt] localhost\n\n" | socat "${tmpdir}/h1/stats" - | grep "unable to load ${testdir}/ca-auth.crt"
}
shell {
printf "add ssl crt-list ${testdir}/localhost.crt-list/ <<\n${testdir}/ecdsa.pem [ca-verify-file ${testdir}/ca-auth.crt] localhost\n\n" | socat "${tmpdir}/h1/stats" - | grep "unable to load ${testdir}/ca-auth.crt"
}
shell {
printf "add ssl crt-list ${testdir}/localhost.crt-list/ <<\n${testdir}/ecdsa.pem [crl-file ${testdir}/ca-auth.crt] localhost\n\n" | socat "${tmpdir}/h1/stats" - | grep "unable to load ${testdir}/ca-auth.crt"
}
# Check that the new line was not added to the crt-list.
haproxy h1 -cli {
send "show ssl crt-list ${testdir}/localhost.crt-list//"
expect !~ ".*ca-file ${testdir}/ca-auth.crt"
}