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Merge pull request #2852 from testssl/full_ipv6

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Enable IPv6 automagically
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Dirk Wetter 2025-07-20 20:56:34 +02:00 committed by GitHub
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3
CHANGELOG.md
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@ -4,8 +4,9 @@
### Features implemented / improvements in 3.3dev
* QUIC protocol check
* bump SSLlabs rating guide to 2009r
* Bump SSLlabs rating guide to 2009r
* Check for Opossum vulnerability
* Enable IPv6 automagically, i.e. if target via IPv6 is reachable just (also) scan it
### Features implemented / improvements in 3.2

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doc/testssl.1.html
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@ -99,6 +99,14 @@
<li><p>client simulation</p></li>
<li><p>rating</p></li>
</ol>
<p>If a target FQDN has multiple IPv4 and/or multiple IPv6
addresses, it scans all IPs with the specified options or using
the default run - unless specified otherwise, see
<code>--ip</code>, <code>-4</code> and <code>-6</code>. IPv6
connectivity is automagically checked. If there’s noch such
thing you will see a banner <em>Testing all
<strong>IPv4</strong> addresses</em> and all IPv6 addresses will
appear in round brackets.</p>
<h2 id="options-and-parameters">OPTIONS AND PARAMETERS</h2>
<p>Options are either short or long options. Any long or short
option requiring a value can be called with or without an equal
@ -216,15 +224,16 @@
will be made in the future as a best guess by testssl.sh. The
same can be achieved by setting the environment variable
<code>WARNINGS</code>.</p>
<p><code>--connect-timeout &lt;seconds&gt;</code> This is useful
<p><code>--socket-timeout &lt;seconds&gt;</code> This is useful
for socket TCP connections to a node. If the node does not
complete a TCP handshake (e.g. because it is down or behind a
firewall or there’s an IDS or a tarpit) testssl.sh may usually
hang for around 2 minutes or even much more. This parameter
instructs testssl.sh to wait at most <code>seconds</code> for
the handshake to complete before giving up. This option only
works if your OS has a timeout binary installed. CONNECT_TIMEOUT
is the corresponding environment variable.</p>
works if your OS has a timeout binary installed. SOCKET_TIMEOUT
is the corresponding environment variable. This doesn’t work on
Macs out of the box.</p>
<p><code>--openssl-timeout &lt;seconds&gt;</code> This is
especially useful for all connects using openssl and practically
useful for mass testing. It avoids the openssl connect to hang
@ -234,7 +243,8 @@
timeout binary installed. As there are different implementations
of <code>timeout</code>: It automatically calls the binary with
the right parameters. OPENSSL_TIMEOUT is the equivalent
environment variable.</p>
environment variable. This doesn’t work on Macs out of the
box.</p>
<p><code>--basicauth &lt;user:pass&gt;</code> This can be set to
provide HTTP basic auth credentials which are used during checks
for security headers. BASICAUTH is the ENV variable you can use
@ -301,17 +311,15 @@
<code>IGN_OCSP_PROXY=true</code> has been supplied it will be
tried directly. Authentication to the proxy is not supported,
also no HTTPS or SOCKS proxy.</p>
<p><code>-6</code> does (also) IPv6 checks. Please note that
testssl.sh doesn’t perform checks on an IPv6 address
automatically, because of two reasons: testssl.sh does no
connectivity checks for IPv6 and it cannot determine reliably
whether the OpenSSL binary you’re using has IPv6 s_client
support. <code>-6</code> assumes both is the case. If both
conditions are met and you in general prefer to test for IPv6
branches as well you can add <code>HAS_IPv6</code> to your shell
environment. Besides the OpenSSL binary supplied IPv6 is known
to work with vanilla OpenSSL &gt;= 1.1.0 and older versions
&gt;=1.0.2 in RHEL/CentOS/FC and Gentoo.</p>
<p><code>-6</code> scans only IPv6 addresses of the target.
Besides the OpenSSL binary supplied IPv6 is known to work with
vanilla OpenSSL &gt;= 1.1.0 and older versions &gt;=1.0.2 in
RHEL/CentOS/FC and Gentoo. Scans are somewhat in line with tools
like curl or wget, i.e. if there’s an IPv6 address of the target
which can be reached, it just uses them. If you don’t want this
behavior, you need to supply <code>-4.</code></p>
<p><code>-4</code> scans only IPv4 addresses of the target, IPv6
addresses of the target won’t be scanned.</p>
<p><code>--ssl-native</code> Instead of using a mixture of bash
sockets and a few openssl s_client connects, testssl.sh uses the
latter (almost) only. This is faster but provides less accurate
@ -649,7 +657,7 @@
vulnerability. It tests for the absence of a lot of ciphers,
some TLS extensions and ec curves which were introduced later in
Windows. In the end the server banner is being looked at.</p>
<p><code>-4, --rc4, --appelbaum</code> Checks which RC4 stream
<p><code>--rc4, --appelbaum</code> Checks which RC4 stream
ciphers are being offered.</p>
<h3 id="output-options">OUTPUT OPTIONS</h3>
<p><code>-q, --quiet</code> Normally testssl.sh displays a

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doc/testssl.1.md
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@ -36,7 +36,7 @@ linked OpenSSL binaries for major operating systems are supplied in `./bin/`.
`testssl.sh URI` as the default invocation does the so-called default run which does a number of checks and puts out the results colorized (ANSI and termcap) on the screen. It does every check listed below except `-E` which are (order of appearance):
0) displays a banner (see below), does a DNS lookup also for further IP addresses and does for the returned IP address a reverse lookup. Last but not least a service check is being done.
0) displays a banner (see below), does a DNS lookup also for further IP addresses and does for the returned IP address a reverse lookup. Last but not least a service check is being done.
1) SSL/TLS protocol check
@ -58,6 +58,7 @@ linked OpenSSL binaries for major operating systems are supplied in `./bin/`.
10) rating
If a target FQDN has multiple IPv4 and/or multiple IPv6 addresses, it scans all IPs with the specified options or using the default run - unless specified otherwise, see `--ip`, `-4` and `-6`. IPv6 connectivity is automagically checked. If there's noch such thing you will see a banner *Testing all **IPv4** addresses* and all IPv6 addresses will appear in round brackets.
## OPTIONS AND PARAMETERS
@ -105,9 +106,9 @@ Please note that `fname` has to be in Unix format. DOS carriage returns won't be
`--warnings <batch|off>`. The warnings parameter determines how testssl.sh will deal with situations where user input normally will be necessary. There are two options. `batch` doesn't wait for a confirming keypress when a client- or server-side problem is encountered. As of 3.0 it just then terminates the particular scan. This is automatically chosen for mass testing (`--file`). `off` just skips the warning, the confirmation but continues the scan, independent whether it makes sense or not. Please note that there are conflicts where testssl.sh will still ask for confirmation which are the ones which otherwise would have a drastic impact on the results. Almost any other decision will be made in the future as a best guess by testssl.sh.
The same can be achieved by setting the environment variable `WARNINGS`.
`--connect-timeout <seconds>` This is useful for socket TCP connections to a node. If the node does not complete a TCP handshake (e.g. because it is down or behind a firewall or there's an IDS or a tarpit) testssl.sh may usually hang for around 2 minutes or even much more. This parameter instructs testssl.sh to wait at most `seconds` for the handshake to complete before giving up. This option only works if your OS has a timeout binary installed. CONNECT_TIMEOUT is the corresponding environment variable.
`--socket-timeout <seconds>` This is useful for socket TCP connections to a node. If the node does not complete a TCP handshake (e.g. because it is down or behind a firewall or there's an IDS or a tarpit) testssl.sh may usually hang for around 2 minutes or even much more. This parameter instructs testssl.sh to wait at most `seconds` for the handshake to complete before giving up. This option only works if your OS has a timeout binary installed. SOCKET_TIMEOUT is the corresponding environment variable. This doesn't work on Macs out of the box.
`--openssl-timeout <seconds>` This is especially useful for all connects using openssl and practically useful for mass testing. It avoids the openssl connect to hang for ~2 minutes. The expected parameter `seconds` instructs testssl.sh to wait before the openssl connect will be terminated. The option is only available if your OS has a timeout binary installed. As there are different implementations of `timeout`: It automatically calls the binary with the right parameters. OPENSSL_TIMEOUT is the equivalent environment variable.
`--openssl-timeout <seconds>` This is especially useful for all connects using openssl and practically useful for mass testing. It avoids the openssl connect to hang for ~2 minutes. The expected parameter `seconds` instructs testssl.sh to wait before the openssl connect will be terminated. The option is only available if your OS has a timeout binary installed. As there are different implementations of `timeout`: It automatically calls the binary with the right parameters. OPENSSL_TIMEOUT is the equivalent environment variable. This doesn't work on Macs out of the box.
`--basicauth <user:pass>` This can be set to provide HTTP basic auth credentials which are used during checks for security headers. BASICAUTH is the ENV variable you can use instead.
@ -124,11 +125,13 @@ The same can be achieved by setting the environment variable `WARNINGS`.
`--mx <domain|host>` tests all MX records (STARTTLS on port 25) from high to low priority, one after the other.
`--ip <ip>` tests either the supplied IPv4 or IPv6 address instead of resolving host(s) in `<URI>`. IPv6 addresses need to be supplied in square brackets. `--ip=one` means: just test the first A record DNS returns (useful for multiple IPs). If `-6` and `--ip=one` was supplied an AAAA record will be picked if available. The ``--ip`` option might be also useful if you want to resolve the supplied hostname to a different IP, similar as if you would edit `/etc/hosts` or `/c/Windows/System32/drivers/etc/hosts`. `--ip=proxy` tries a DNS resolution via proxy. `--ip=proxy` plus `--nodns=min` is useful for situations with no local DNS as there'll be no DNS timeouts when trying to resolve CAA, TXT and MX records.
`--ip <ip>` tests either the supplied IPv4 or IPv6 address instead of resolving host(s) in `<URI>`. IPv6 addresses need to be supplied in square brackets. `--ip=one` means: just test the first A record DNS returns (useful for multiple IPs). If `-6` and `--ip=one` was supplied an AAAA record will be picked if available. The `--ip` option might be also useful if you want to resolve the supplied hostname to a different IP, similar as if you would edit `/etc/hosts` or `/c/Windows/System32/drivers/etc/hosts`. `--ip=proxy` tries a DNS resolution via proxy. `--ip=proxy` plus `--nodns=min` is useful for situations with no local DNS as there'll be no DNS timeouts when trying to resolve CAA, TXT and MX records.
`--proxy <host>:<port>` does ANY check via the specified proxy. `--proxy=auto` inherits the proxy setting from the environment. Any hostname supplied will be resolved to the first A record, if it does not exist the AAAA record is used. IPv4 and IPv6 addresses can be passed too, the latter *also* with square bracket notation. Please note that you need a newer OpenSSL or LibreSSL version for IPv6 proxy functionality. In addition if you want lookups via proxy you can specify `DNS_VIA_PROXY=true`. OCSP revocation checking (`-S --phone-out`) is not supported by OpenSSL via proxy. As supplying a proxy is an indicator for port 80 and 443 outgoing being blocked in your network an OCSP revocation check won't be performed. However if `IGN_OCSP_PROXY=true` has been supplied it will be tried directly. Authentication to the proxy is not supported, also no HTTPS or SOCKS proxy.
`-6` does (also) IPv6 checks. Please note that testssl.sh doesn't perform checks on an IPv6 address automatically, because of two reasons: testssl.sh does no connectivity checks for IPv6 and it cannot determine reliably whether the OpenSSL binary you're using has IPv6 s_client support. `-6` assumes both is the case. If both conditions are met and you in general prefer to test for IPv6 branches as well you can add `HAS_IPv6` to your shell environment. Besides the OpenSSL binary supplied IPv6 is known to work with vanilla OpenSSL >= 1.1.0 and older versions >=1.0.2 in RHEL/CentOS/FC and Gentoo.
`-6` scans only IPv6 addresses of the target. Besides the OpenSSL binary supplied IPv6 is known to work with vanilla OpenSSL >= 1.1.0 and older versions >=1.0.2 in RHEL/CentOS/FC and Gentoo. Scans are somewhat in line with tools like curl or wget, i.e. if there's an IPv6 address of the target which can be reached, it just uses them. If you don't want this behavior, you need to supply `-4.`
`-4` scans only IPv4 addresses of the target, IPv6 addresses of the target won't be scanned.
`--ssl-native` Instead of using a mixture of bash sockets and a few openssl s_client connects, testssl.sh uses the latter (almost) only. This is faster but provides less accurate results, especially for the client simulation and for cipher support. For all checks you will see a warning if testssl.sh cannot tell if a particular check cannot be performed. For some checks however you might end up getting false negatives without a warning. Thus it is not recommended to use. It should only be used if you prefer speed over accuracy or you know that your target has sufficient overlap with the protocols and cipher provided by your openssl binary.
@ -266,7 +269,7 @@ Also for multiple server certificates are being checked for as well as for the c
`-WS, --winshock` Checks for Winshock vulnerability. It tests for the absence of a lot of ciphers, some TLS extensions and ec curves which were introduced later in Windows. In the end the server banner is being looked at.
`-4, --rc4, --appelbaum` Checks which RC4 stream ciphers are being offered.
`--rc4, --appelbaum` Checks which RC4 stream ciphers are being offered.
### OUTPUT OPTIONS

263
testssl.sh
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@ -151,7 +151,7 @@ declare -a SKIP_TESTS=() # This array hold the checks t
# Following variables make use of $ENV and can also be used like "<VAR>=<value> ./testssl.sh <URI>"
declare -x OPENSSL
OPENSSL_TIMEOUT=${OPENSSL_TIMEOUT:-""} # Default connect timeout with openssl before we call the server side unreachable
CONNECT_TIMEOUT=${CONNECT_TIMEOUT:-""} # Default connect timeout with sockets before we call the server side unreachable
SOCKET_TIMEOUT=${SOCKET_TIMEOUT:-""} # Default connect timeout with sockets before we call the server side unreachable
PHONE_OUT=${PHONE_OUT:-false} # Whether testssl can retrieve CRLs and OCSP
FAST_SOCKET=${FAST_SOCKET:-false} # EXPERIMENTAL feature to accelerate sockets -- DO NOT USE it for production
COLOR=${COLOR:-2} # 3: Extra color (ciphers, curves), 2: Full color, 1: B/W only 0: No ESC at all
@ -186,7 +186,7 @@ OVERWRITE=${OVERWRITE:-false} # overwriting csv/json/html/log file
[[ -z "$NODNS" ]] && declare NODNS # If unset it does all DNS lookups per default. "min" only for hosts or "none" at all
NXDNS=${NXDNS:-invalid.} # For WSL this helps avoiding DNS requests to "invalid." which windows seem to handle delayed
NXCONNECT="" # needed when when need to test capabilities of the openssl binary
HAS_IPv6=${HAS_IPv6:-false} # if you have OpenSSL with IPv6 support AND IPv6 networking set it to yes
IPv6_OK=false # Determines later whether there's IPv6 connectivity for the user or not
ALL_CLIENTS=${ALL_CLIENTS:-false} # do you want to run all client simulation form all clients supplied by SSLlabs?
OFFENSIVE=${OFFENSIVE:-true} # do you want to include offensive vulnerability tests which may cause blocking by an IDS?
ADDTL_CA_FILES="${ADDTL_CA_FILES:-""}" # single file with a CA in PEM format or comma separated lists of them
@ -391,8 +391,8 @@ NODE=""
NODEIP=""
rDNS=""
CORRECT_SPACES="" # Used for IPv6 and proper output formatting
IPADDRs=""
IP46ADDRs=""
IPADDRs2CHECK="" # Contains all IP addresses to test
IPADDRs2SHOW="" # ... those are the ones to be displayed
LOCAL_A=false # Does the $NODEIP come from /etc/hosts?
LOCAL_AAAA=false # Does the IPv6 IP come from /etc/hosts?
XMPP_HOST=""
@ -1339,7 +1339,7 @@ fileout_pretty_json_banner() {
if ! "$do_mass_testing"; then
[[ -z "$NODE" ]] && parse_hn_port "${URI}"
# NODE, URL_PATH, PORT, IPADDR and IP46ADDR is set now --> wrong place
# NODE, URL_PATH, PORT, IPADDR and IPADDRs2SHOW is set now --> wrong place
target="$NODE"
$do_mx_all_ips && target="$URI"
fi
@ -1470,7 +1470,7 @@ json_header() {
elif "$do_mx_all_ips"; then
fname_prefix="${FNAME_PREFIX}mx-${URI}"
else
# ensure NODE, URL_PATH, PORT, IPADDR and IP46ADDR are set
# ensure NODE, URL_PATH, PORT, IPADDR and IPADDRs2SHOW are set
! "$filename_provided" && [[ -z "$NODE" ]] && parse_hn_port "${URI}"
fname_prefix="${FNAME_PREFIX}${NODE}_p${PORT}"
fi
@ -1518,7 +1518,7 @@ csv_header() {
elif "$do_mx_all_ips"; then
fname_prefix="${FNAME_PREFIX}mx-${URI}"
else
# ensure NODE, URL_PATH, PORT, IPADDR and IP46ADDR are set
# ensure NODE, URL_PATH, PORT, IPADDR and IPADDRs2SHOW are set
! "$filename_provided" && [[ -z "$NODE" ]] && parse_hn_port "${URI}"
fname_prefix="${FNAME_PREFIX}${NODE}_p${PORT}"
fi
@ -1575,7 +1575,7 @@ html_header() {
elif "$do_mx_all_ips"; then
fname_prefix="${FNAME_PREFIX}mx-${URI}"
else
# ensure NODE, URL_PATH, PORT, IPADDR and IP46ADDR are set
# ensure NODE, URL_PATH, PORT, IPADDR and IPADDRs2SHOW are set
! "$filename_provided" && [[ -z "$NODE" ]] && parse_hn_port "${URI}"
fname_prefix="${FNAME_PREFIX}${NODE}_p${PORT}"
fi
@ -12153,12 +12153,14 @@ fd_socket() {
break
fi
done
# For the following execs: 2>/dev/null would remove a potential error message, but disables debugging.
# First we check whether a socket connect timeout was specified. We exec the connect in a subshell,
# then we'll see whether we can connect. If not we take the emergency exit. If we're still alive we'll
# For the following exec commands: 2>/dev/null would remove a potential error message, but would disable
# debugging.
# First we check whether a socket timeout was specified. We exec the connect in a subshell,
# and see whether. If not we take the emergency exit: fatal() in connectivity_problem.
# Otherwise (no socket timeout) OR when we survived that we do that without subshell.
# proceed with the "usual case", see below.
elif [[ -n "$CONNECT_TIMEOUT" ]]; then
if ! $TIMEOUT_CMD $CONNECT_TIMEOUT bash -c "exec 5<>/dev/tcp/$nodeip/$PORT"; then
elif [[ -n "$SOCKET_TIMEOUT" ]]; then
if ! $TIMEOUT_CMD $SOCKET_TIMEOUT bash -c "exec 5<>/dev/tcp/$nodeip/$PORT"; then
((NR_SOCKET_FAIL++))
connectivity_problem $NR_SOCKET_FAIL $MAX_SOCKET_FAIL "TCP connect problem" "repeated TCP connect problems (connect timeout), giving up"
outln
@ -21190,7 +21192,7 @@ find_openssl_binary() {
$OPENSSL verify -trusted_first </dev/null 2>&1 | grep -q '^usage' || TRUSTED1ST="-trusted_first"
if [[ -n "$CONNECT_TIMEOUT" ]] || [[ -n "$OPENSSL_TIMEOUT" ]]; then
if [[ -n "$SOCKET_TIMEOUT" ]] || [[ -n "$OPENSSL_TIMEOUT" ]]; then
# We don't set a general timeout as we might not have "timeout" installed and we only
# do what is instructed. Thus we check first what the command line params were,
# then we proceed
@ -21203,8 +21205,7 @@ find_openssl_binary() {
fi
else
TIMEOUT_CMD=""
outln
fatal "You specified a connect or openssl timeout but the binary \"timeout\" couldn't be found " $ERR_RESOURCE
fatal "You specified a socket or openssl timeout but the binary \"timeout\" couldn't be found " $ERR_RESOURCE
fi
fi
@ -21366,7 +21367,7 @@ help() {
Text format 2: nmap output in greppable format (-oG), 1 port per line allowed
--mode <serial|parallel> Mass testing to be done serial (default) or parallel (--parallel is shortcut for the latter)
--warnings <batch|off> "batch" doesn't continue when a testing error is encountered, off continues and skips warnings
--connect-timeout <seconds> useful to avoid hangers. Max <seconds> to wait for the TCP socket connect to return
--socket-timeout <seconds> useful to avoid hangers. Max <seconds> to wait for the TCP connect to get ACKed
--openssl-timeout <seconds> useful to avoid hangers. Max <seconds> to wait before openssl connect will be terminated
single check as <options> ("$PROG_NAME URI" does everything except -E and -g):
@ -21402,7 +21403,7 @@ single check as <options> ("$PROG_NAME URI" does everything except -E and -g):
-F, --freak tests for FREAK vulnerability
-J, --logjam tests for LOGJAM vulnerability
-D, --drown tests for DROWN vulnerability
-4, --rc4, --appelbaum which RC4 ciphers are being offered?
--rc4, --appelbaum which RC4 ciphers are being offered?
tuning / connect options (most also can be preset via environment variables):
-9, --full includes tests for implementation bugs and cipher per protocol (could disappear)
@ -21411,7 +21412,8 @@ tuning / connect options (most also can be preset via environment variables):
--ssl-native use OpenSSL where sockets are normally used. Faster but inaccurate, avoid it if possible
--openssl <PATH> use this openssl binary (default: look in \$PATH, \$RUN_DIR of $PROG_NAME)
--proxy <host:port|auto> (experimental) proxy connects via <host:port>, auto: values from \$env (\$http(s)_proxy)
-6 also use IPv6. Works only with supporting OpenSSL version and IPv6 connectivity
-4 Scan IPv4 only
-6 Scan IPv6 only. Works only with supporting OpenSSL version and IPv6 connectivity
--ip <ip> a) tests the supplied <ip> v4 or v6 address instead of resolving host(s) in URI
b) "one" means: just test the first DNS returns (useful for multiple IPs)
c) "proxy" means: dns resolution via proxy. Needed when host has no DNS.
@ -21528,7 +21530,6 @@ OPENSSL2_HAS_CHACHA20: $OPENSSL2_HAS_CHACHA20
OPENSSL2_HAS_AES128_GCM: $OPENSSL2_HAS_AES128_GCM
OPENSSL2_HAS_AES256_GCM: $OPENSSL2_HAS_AES256_GCM
HAS_IPv6: $HAS_IPv6
HAS_SSL2: $HAS_SSL2
HAS_SSL3: $HAS_SSL3
HAS_TLS1: $HAS_TLS1
@ -21610,12 +21611,13 @@ CLIENT_MIN_FS: $CLIENT_MIN_FS
DAYS2WARN1: $DAYS2WARN1
DAYS2WARN2: $DAYS2WARN2
HEADER_MAXSLEEP: $HEADER_MAXSLEEP
IPv6_OK: $IPv6_OK
MAX_WAITSOCK: $MAX_WAITSOCK
HEARTBLEED_MAX_WAITSOCK: $HEARTBLEED_MAX_WAITSOCK
CCS_MAX_WAITSOCK: $CCS_MAX_WAITSOCK
USLEEP_SND $USLEEP_SND
USLEEP_REC $USLEEP_REC
HEADER_MAXSLEEP: $HEADER_MAXSLEEP
SOCAT: $SOCAT
@ -22305,6 +22307,7 @@ get_mx_record() {
# arg1: domain / hostname. Returned will be the TXT record as a string which can be multilined
# (one entry per line), for e.g. non-MTA-STS records.
# Is supposed to be used by MTA STS in the future like get_txt_record _mta-sts.DOMAIN.TLD
#
get_txt_record() {
local record=""
local saved_openssl_conf="$OPENSSL_CONF"
@ -22330,27 +22333,75 @@ get_txt_record() {
}
# This is to check whether we have IPv6 connectivity
# arg1: IPv6 address to check
#
# sets IPv6_OK if it works -- or not
#
shouldwedo_ipv6() {
local i=0
# set IPADDRs and IP46ADDRs
"$do_ipv4_only" && return 0
while true; do
bash -c "exec 5<>/dev/tcp/$1/$PORT" &>/dev/null
if [[ $? -eq 0 ]]; then
IPv6_OK=true
break
fi
sleep 1
((i++))
[[ $i -ge $MAX_SOCKET_FAIL ]] && break
done
if ! "$IPv6_OK"; then
if "$do_ipv6_only"; then
connectivity_problem $i $MAX_SOCKET_FAIL "IPv6 connect problem" "repeated IPv6 connect problems when IPv6-only scan requested"
else
IPv6_OK=false
fi
fi
}
# set IPADDRs2CHECK and IPADDRs2SHOW
#
determine_ip_addresses() {
local ip4=""
local ip6=""
ip4="$(get_a_record "$NODE")"
ip6="$(get_aaaa_record "$NODE")"
IP46ADDRs=$(newline_to_spaces "$ip4 $ip6")
# first, try to get IP addresses from /etc/hosts
# Local_A[AAA] is for our UI
ip4=$(get_local_a "$NODE")
if [[ -n "$ip4" ]]; then
LOCAL_A=true
else
ip4="$(get_a_record "$NODE")"
fi
ip6=$(get_local_aaaa "$NODE")
if [[ -n "$ip6" ]]; then
LOCAL_AAAA=true
else
ip6=$(get_aaaa_record "$NODE")
fi
IPADDRs2SHOW=$(newline_to_spaces "$ip4 $ip6")
if [[ -n "$ip6" ]]; then
# sets IPv6_OK
shouldwedo_ipv6 $(head -1 <<< "$ip6")
fi
if [[ -n "$CMDLINE_IP" ]]; then
# command line has supplied an IP address or "one"
if [[ "$CMDLINE_IP" == one ]]; then
# use first IPv6 or IPv4 address
if "$HAS_IPv6" && [[ -n "$ip6" ]]; then
# use first IPv6 or IPv4 address when --ip=one
if "$do_ipv4_only"; then
CMDLINE_IP="$(head -1 <<< "$ip4")"
elif "$do_ipv6_only"; then
CMDLINE_IP="$(head -1 <<< "$ip6")"
else
CMDLINE_IP="$(head -1 <<< "$ip4")"
fi
fi
# otherwise check what was specified with --ip=
NODEIP="$CMDLINE_IP"
if is_ipv4addr "$NODEIP"; then
ip4="$NODEIP"
@ -22360,49 +22411,42 @@ determine_ip_addresses() {
fatal "couldn't identify supplied \"CMDLINE_IP\"" $ERR_DNSLOOKUP
fi
elif is_ipv4addr "$NODE"; then
ip4="$NODE" # only an IPv4 address was supplied as an argument, no hostname
ip4="$NODE" # only a single IPv4 address was supplied as an argument, no hostname
SNI="" # override Server Name Indication as we test the IP only
elif is_ipv6addr "$NODE"; then
ip6="$NODE"
SNI=""
else
ip4=$(get_local_a "$NODE") # is there a local host entry?
if [[ -z "$ip4" ]]; then # empty: no (LOCAL_A is predefined as false)
ip4=$(get_a_record "$NODE")
else
LOCAL_A=true # we have the ip4 from local host entry and need to signal this to testssl
fi
# same now for ipv6
ip6=$(get_local_aaaa "$NODE")
if [[ -z "$ip6" ]]; then
ip6=$(get_aaaa_record "$NODE")
else
LOCAL_AAAA=true # we have a local ipv6 entry and need to signal this to testssl
fi
: # standard case
fi
# IPv6 only address
if [[ -z "$ip4" ]]; then
if "$HAS_IPv6"; then
IPADDRs=$(newline_to_spaces "$ip6")
IP46ADDRs="$IPADDRs" # IP46ADDRs are the ones to display, IPADDRs the ones to test
if "$do_ipv4_only"; then
if [[ -z "$ip4" ]]; then
fatal_cmd_line "No IPv4 addresses available, but IPv4-only scan requested" $ERR_CMDLINE
fi
IPADDRs2CHECK=$(newline_to_spaces "$ip4")
elif "$do_ipv6_only"; then
if [[ -z "$ip6" ]]; then
fatal_cmd_line "No IPv6 addresses available, but IPv6-only scan requested" $ERR_CMDLINE
fi
if ! "$IPv6_OK"; then
fatal_cmd_line "IPv6 address cannot be reached" $ERR_RESOURCE
fi
IPADDRs2CHECK=$(newline_to_spaces "$ip6")
else
if "$HAS_IPv6" && [[ -n "$ip6" ]]; then
if is_ipv6addr "$CMDLINE_IP"; then
IPADDRs=$(newline_to_spaces "$ip6")
else
IPADDRs=$(newline_to_spaces "$ip4 $ip6")
fi
else
IPADDRs=$(newline_to_spaces "$ip4")
fi
for addr in $IPADDRs2SHOW; do
is_ipv6addr $addr && ! "$IPv6_OK" && continue
[[ -z $IPADDRs2CHECK ]] && IPADDRs2CHECK="${addr}" || IPADDRs2CHECK="${IPADDRs2CHECK} ${addr}"
done
fi
if [[ -z "$IPADDRs" ]]; then
if [[ -n "$ip6" ]]; then
fatal "Only IPv6 address(es) for \"$NODE\" available, maybe add \"-6\" to $0" $ERR_DNSLOOKUP
else
fatal "No IPv4/IPv6 address(es) for \"$NODE\" available" $ERR_DNSLOOKUP
# If scanning IPV6 doesn't work, put the address to show in round brackets to
# signal the user / UI that those won't be scanned. We don't do that for IPv4, yet
for addr in $IPADDRs2SHOW; do
if is_ipv6addr $addr && ! "$IPv6_OK" ; then
IPADDRs2SHOW=${IPADDRs2SHOW/$addr/($addr)}
fi
fi
return 0 # IPADDR and IP46ADDR is set now
done
return 0
}
determine_rdns() {
@ -22411,7 +22455,7 @@ determine_rdns() {
[[ "$NODNS" == none ]] && rDNS="(instructed to skip DNS queries)" && return 0 # No DNS lookups at all
[[ "$NODNS" == min ]] && rDNS="(instructed to minimize DNS queries)" && return 0 # PTR records were not asked for
local nodeip="$(tr -d '[]' <<< $NODEIP)" # for DNS we do not need the square brackets of IPv6 addresses
nodeip="$(tr -d '[]' <<< $NODEIP)" # for DNS we do not need the square brackets of IPv6 addresses
OPENSSL_CONF="" # see https://github.com/testssl/testssl.sh/issues/134
if [[ "$NODE" == *.local ]]; then
if "$HAS_DSCACHEUTIL"; then
@ -23001,7 +23045,7 @@ determine_optimal_proto() {
fi
elif "$all_failed"; then
outln
if "$HAS_IPv6"; then
if "$IPv6_OK"; then
pr_bold " Your $OPENSSL is not IPv6 aware, or $NODEIP:$PORT "
fileout "$jsonID" "WARN" "Your $OPENSSL is not IPv6 aware, or $NODEIP:$PORT doesn't seem to be a TLS/SSL enabled server."
else
@ -23231,10 +23275,10 @@ display_rdns_etc() {
out " Via Proxy: $CORRECT_SPACES"
outln "$PROXYIP:$PROXYPORT "
fi
if [[ $(count_words "$IP46ADDRs") -gt 1 ]]; then
if [[ $(count_words "$IPADDRs2SHOW") -gt 1 ]]; then
out " Further IP addresses: $CORRECT_SPACES"
for ip in $IP46ADDRs; do
if [[ "$ip" == "$NODEIP" ]] || [[ "[$ip]" == "$NODEIP" ]]; then
for ip in $IPADDRs2SHOW; do
if [[ "$ip" == $NODEIP ]] || [[ "[$ip]" == $NODEIP ]]; then
continue
else
further_ip_addrs+="$ip "
@ -23317,28 +23361,27 @@ run_mx_all_ips() {
pr_bold "Testing $word MX record (on port $mxport): "
fi
outln "$mxs"
[[ $mxport == 465 ]] && STARTTLS_PROTOCOL="" # no starttls for tcp 465, all other ports are starttls
[[ $mxport == 465 ]] && STARTTLS_PROTOCOL="" # no starttls for tcp 465, all other ports are starttls
for mx in $mxs; do
draw_line "-" $((TERM_WIDTH * 2 / 3))
outln
parse_hn_port "$mx:$mxport"
determine_ip_addresses || continue
if [[ $(count_words "$IPADDRs") -gt 1 ]]; then # we have more than one ipv4 address to check
if [[ $(count_words "$IPADDRs2CHECK") -gt 1 ]]; then # we have more than one ipv4 address to check
MULTIPLE_CHECKS=true
if [[ "$HAS_IPv6" ]]; then
pr_bold "Testing all IP addresses (port $PORT): "
else
fi
if "$do_ipv4_only"; then
pr_bold "Testing all IPv4 addresses (port $PORT): "
fi
outln "$IPADDRs"
for ip in $IPADDRs; do
NODEIP="$ip"
lets_roll "${STARTTLS_PROTOCOL}"
done
elif "$do_ipv6_only"; then
pr_bold "Testing all IPv6 addresses (port $PORT): "
else
NODEIP="$IPADDRs"
lets_roll "${STARTTLS_PROTOCOL}"
pr_bold "Testing all IP addresses (port $PORT): "
fi
outln "$IPADDRs2CHECK"
for ip in $IPADDRs2CHECK; do
NODEIP="$ip"
lets_roll "${STARTTLS_PROTOCOL}"
done
ret=$(($? + ret))
done
draw_line "-" $((TERM_WIDTH * 2 / 3))
@ -24166,6 +24209,9 @@ initialize_globals() {
do_display_only=false
do_starttls=false
do_rating=false
do_ipv6_only=false
do_ipv4_only=false
}
@ -24200,12 +24246,16 @@ set_scanning_defaults() {
do_server_preference=true
do_tls_fallback_scsv=true
do_client_simulation=true
if "$OFFENSIVE"; then
VULN_COUNT=18
else
VULN_COUNT=14
fi
do_rating=true
do_ipv6_only=false
do_ipv4_only=false
}
# returns number of $do variables set = number of run_funcs() to perform
@ -24529,7 +24579,7 @@ parse_cmd_line() {
do_winshock=true
((VULN_COUNT++))
;;
-4|--rc4|--appelbaum)
--rc4|--appelbaum)
do_rc4=true
((VULN_COUNT++))
;;
@ -24855,8 +24905,8 @@ parse_cmd_line() {
MTLS="$(parse_opt_equal_sign "$1" "$2")"
[[ $? -eq 0 ]] && shift
;;
--connect-timeout|--connect-timeout=*)
CONNECT_TIMEOUT="$(parse_opt_equal_sign "$1" "$2")"
--socket-timeout|--socket-timeout=*--connect-timeout|--connect-timeout=*)
SOCKET_TIMEOUT="$(parse_opt_equal_sign "$1" "$2")"
[[ $? -eq 0 ]] && shift
;;
--mapping|--mapping=*)
@ -24878,8 +24928,9 @@ parse_cmd_line() {
--phone-out)
PHONE_OUT=true
;;
-6) # doesn't work automagically. My versions have -DOPENSSL_USE_IPV6, CentOS/RHEL/FC do not
HAS_IPv6=true
-4) do_ipv4_only=true
;;
-6) do_ipv6_only=true
;;
--has[-_]dhbits|--has[_-]dh[-_]bits)
# Should work automagically. Helper switch for CentOS,RHEL+FC w openssl server temp key backport (version 1.0.1), see #190
@ -24954,6 +25005,8 @@ parse_cmd_line() {
((VULN_COUNT++))
fi
"$do_ipv4_only" && "$do_ipv6_only" && fatal_cmd_line "-4 and -6 exclude each other" $ERR_CMDLINE
count_do_variables
[[ $? -eq 0 ]] && set_scanning_defaults
set_skip_tests
@ -24970,6 +25023,7 @@ parse_cmd_line() {
# connect call from openssl needs ipv6 in square brackets
#
nodeip_to_proper_ip6() {
local len_nodeip=0
@ -25035,6 +25089,7 @@ stopwatch() {
# arg1(optional): "init" --> just initializing. Or: STARTTLS protocol
#
lets_roll() {
local -i ret=0
local section_number=0
@ -25248,7 +25303,7 @@ lets_roll() {
exit $?
fi
[[ -z "$NODE" ]] && parse_hn_port "${URI}" # NODE, URL_PATH, PORT, IPADDRs and IP46ADDR is set now
[[ -z "$NODE" ]] && parse_hn_port "${URI}" # NODE, URL_PATH, PORT, IPADDRs2CHECK and IPADDRs2SHOW is set now
prepare_logging
if [[ -n "$PROXY" ]] && $DNS_VIA_PROXY; then
@ -25257,29 +25312,27 @@ lets_roll() {
RET=$?
else
determine_ip_addresses
if [[ $(count_words "$IPADDRs") -gt 1 ]]; then # we have more than one ipv4 address to check
if [[ $(count_words "$IPADDRs2CHECK") -gt 1 ]]; then
MULTIPLE_CHECKS=true
if [[ "$HAS_IPv6" ]]; then
pr_bold "Testing all IP addresses (port $PORT): "
else
pr_bold "Testing all IPv4 addresses (port $PORT): "
fi
outln "$IPADDRs"
for ip in $IPADDRs; do
draw_line "-" $((TERM_WIDTH * 2 / 3))
outln
NODEIP="$ip"
lets_roll "${STARTTLS_PROTOCOL}"
RET=$((RET + $?)) # RET value per IP address
done
fi
if "$do_ipv4_only"; then
pr_bold "Testing all IPv4 addresses (port $PORT): "
elif "$do_ipv6_only"; then
pr_bold "Testing all IPv6 addresses (port $PORT): "
else
pr_bold "Testing all IP addresses (port $PORT): "
fi
outln "$IPADDRs2CHECK"
for ip in $IPADDRs2CHECK; do
draw_line "-" $((TERM_WIDTH * 2 / 3))
outln
pr_bold "Done testing now all IP addresses (on port $PORT): "; outln "$IPADDRs"
else # Just 1x ip4v to check, applies also if CMDLINE_IP was supplied
NODEIP="$IPADDRs"
NODEIP="$ip"
lets_roll "${STARTTLS_PROTOCOL}"
RET=$?
fi
RET=$((RET + $?)) # RET value per IP address
done
draw_line "-" $((TERM_WIDTH * 2 / 3))
outln
pr_bold "Done testing now all IP addresses (on port $PORT): "; outln "$IPADDRs2CHECK"
fi
exit $RET