diff options
Diffstat (limited to 'tests/tls-verify-peer/t')
| -rw-r--r-- | tests/tls-verify-peer/t | 106 |
1 files changed, 88 insertions, 18 deletions
diff --git a/tests/tls-verify-peer/t b/tests/tls-verify-peer/t index d84328a..ee4cd88 100644 --- a/tests/tls-verify-peer/t +++ b/tests/tls-verify-peer/t @@ -1,80 +1,150 @@ -CERT=~/.dovecot/conf.d/dovecot.pem +X509_SHA256="$(doveconf -c "$HOME_remote/.dovecot/config" -hx ssl_cert \ + | openssl x509 -in /dev/stdin -noout -fingerprint -sha256 \ + | sed -rn "/^.*=\\s*/ {s///p;q}" | tr -d : | tr "[A-Z]" "[a-z]")" +PKEY_SHA256="$(doveconf -c "$HOME_remote/.dovecot/config" -hx ssl_cert \ + | openssl x509 -in /dev/stdin -pubkey \ + | openssl pkey -in /dev/stdin -pubin -outform DER \ + | openssl dgst -sha256 | sed -rn "/^.*=\\s*/ {s///p;q}")" unverified_peer() { ! interimap --debug || error + # make sure we aborted the handshake immediately after connecting + grep -Fx "remote: Peer certificate fingerprint: sha256\$$X509_SHA256" <"$STDERR" || error grep -Fx "remote: ERROR: Can't initiate TLS/SSL handshake" <"$STDERR" || error sed -nr "s/remote: \[[0-9]+\] (preverify=[0-9]+)$/\1/p" <"$STDERR" >"$TMPDIR/preverify" [ -s "$TMPDIR/preverify" ] || error ! grep -Fvx "preverify=0" <"$TMPDIR/preverify" || error - # make sure we didn't send any credentials + # make sure we didn't send any credentials or started speaking IMAP ! grep -E "^remote: C: .* (AUTHENTICATE|LOGIN) " <"$STDERR" || error + grep -Fx "remote: IMAP traffic (bytes): recv 0 sent 0" <"$STDERR" || error } verified_peer() { local i u - for ((i = 0; i < 32; i++)); do + for ((i = 0; i < 4; i++)); do u="$(shuf -n1 -e "local" "remote")" sample_message | deliver -u "$u" done interimap --debug || error + grep -Fx "remote: Peer certificate fingerprint: sha256\$$X509_SHA256" <"$STDERR" || error sed -nr "s/remote: \[[0-9]+\] (preverify=[0-9]+)$/\1/p" <"$STDERR" >"$TMPDIR/preverify" [ -s "$TMPDIR/preverify" ] || error ! grep -Fvx "preverify=1" <"$TMPDIR/preverify" || error - grep "^remote: SSL protocol: TLSv1\.[23] " <"$STDERR" || error + grep "^remote: SSL protocol: TLSv" <"$STDERR" || error grep "^remote: SSL cipher: " <"$STDERR" || error check_mailbox_status "INBOX" } # backup config -install -m0600 "$XDG_CONFIG_HOME/interimap/config" "$XDG_CONFIG_HOME/interimap/config~" +install -m0600 -- "$XDG_CONFIG_HOME/interimap/config" "$XDG_CONFIG_HOME/interimap/config~" with_remote_config() { - install -m0600 "$XDG_CONFIG_HOME/interimap/config~" "$XDG_CONFIG_HOME/interimap/config" + install -m0600 -- "$XDG_CONFIG_HOME/interimap/config~" "$XDG_CONFIG_HOME/interimap/config" cat >>"$XDG_CONFIG_HOME/interimap/config" } step_start "peer verification enabled by default" +# assume our fake root CA is not among OpenSSL's default trusted CAs unverified_peer +grep -Fx "remote: Using default locations for trusted CA certificates" <"$STDERR" || error step_done step_start "peer verification result honored when pinned pubkey matches" -pkey_sha256="$(openssl x509 -pubkey <"$CERT" | openssl pkey -pubin -outform DER \ - | openssl dgst -sha256 | sed -rn "/^.*=\\s*/ {s///p;q}")" with_remote_config <<-EOF - SSL_fingerprint = sha256\$$pkey_sha256 + SSL_fingerprint = sha256\$$PKEY_SHA256 EOF unverified_peer -! grep -Fx "remote: WARNING: Fingerprint doesn't match! MiTM in action?" <"$STDERR" || error +grep -Fx "remote: Using default locations for trusted CA certificates" <"$STDERR" || error +grep -Fx "remote: Peer certificate matches pinned SPKI digest sha256\$$PKEY_SHA256" <"$STDERR" || error step_done -step_start "SSL_CAfile" +capath=$(mktemp --tmpdir="$TMPDIR" --directory capath.XXXXXX) +cp -T -- ~/.dovecot/conf.d/ca.crt "$capath/ca-certificates.crt" + +step_start "SSL_CAfile/\$SSL_CERT_FILE" + +# verify that an error is raised when CAfile can't be loaded +# (it's not the case for $SSL_CERT_FILE, cf. SSL_CTX_load_verify_locations(3ssl)) +with_remote_config <<<"SSL_CAfile = /nonexistent" +! interimap --debug || error +grep -Fx "remote: ERROR: SSL_CTX_load_verify_locations()" <"$STDERR" || error +grep -Fx "remote: IMAP traffic (bytes): recv 0 sent 0" <"$STDERR" || error + if [ -f "/etc/ssl/certs/ca-certificates.crt" ]; then - # the self-signed cert should not be in there + # assume our fake root CA is not there with_remote_config <<<"SSL_CAfile = /etc/ssl/certs/ca-certificates.crt" unverified_peer fi -with_remote_config <<<"SSL_CAfile = $CERT" + +# default host (localhost) is the CN (and also subjectAltName) +with_remote_config <<<"SSL_CAfile = $capath/ca-certificates.crt" verified_peer + +with_remote_config </dev/null +SSL_CERT_FILE=~/.dovecot/conf.d/ca.crt verified_peer +grep -Fx "remote: Using default locations for trusted CA certificates" <"$STDERR" || error + +# hostnames and IPs included in the subjectAltName should work as well +for host in "ip6-localhost" "127.0.0.1" "::1"; do + with_remote_config <<-EOF + host = $host + SSL_CAfile = $capath/ca-certificates.crt + EOF + verified_peer +done + +# but not for other hostnames or IPs +for host in "ip6-loopback" "127.0.1.1"; do + with_remote_config <<-EOF + host = $host + SSL_CAfile = $capath/ca-certificates.crt + EOF + unverified_peer +done + step_done -step_start "SSL_CApath" +step_start "SSL_CApath/\$SSL_CERT_DIR" + if [ -d "/etc/ssl/certs" ]; then - # the self-signed cert should not be in there + # assume our fake root CA is not there with_remote_config <<<"SSL_CApath = /etc/ssl/certs" unverified_peer fi -capath=$(mktemp --tmpdir="$TMPDIR" --directory capath.XXXXXX) -cp -t"$capath" "$CERT" c_rehash "$capath" +# default host (localhost) is the CN (and also subjectAltName) with_remote_config <<<"SSL_CApath = $capath" verified_peer + +with_remote_config </dev/null +SSL_CERT_DIR="$capath" verified_peer +grep -Fx "remote: Using default locations for trusted CA certificates" <"$STDERR" || error + +# hostnames and IPs included in the subjectAltName should work as well +for host in "ip6-localhost" "127.0.0.1" "::1"; do + with_remote_config <<-EOF + host = $host + SSL_CApath = $capath + EOF + verified_peer +done + +# but not for other IPs or hostnames +for host in "ip6-loopback" "127.0.1.1"; do + with_remote_config <<-EOF + host = $host + SSL_CApath = $capath + EOF + unverified_peer +done + step_done -# vim: set filetype=sh : +# vim: set filetype=bash : |