Haven't seen this, and it shouldn't happen, but it's possible for a
server to send the same protocol version in the record, but a different
one in the body. This wouldn't be valid, so we should reject it.
Reordered postgres matches to put language matches below version matches, and
wildcarded language that would be gettext-translated. Should detect versions
better, but only detect language when the version match fails.
If service scan failed to find a match, the probe responses are cached.
Now http-server-header will look through those responses before sending
a probe of its own. This should result in better detection with fewer
probes sent.
Also changed the Server header string match to case-insensitive.
The @xmloutput section documentation is not done, and I'm not sure how
to best do it, since it will be the same for all brute.lua scripts. This
is how it looks:
metasploit-msgrpc-brute:
<table key="Accounts">
<table>
<elem key="username">root</elem>
<elem key="state">Valid credentials</elem>
<elem key="password">root</elem>
</table>
</table>
<elem key="Statistics">Performed 3 guesses in 4 seconds, average tps: 0</elem>
creds-summary:
<table key="127.0.0.1">
<table key="9929/nping-echo">
<table>
<elem key="password">123456</elem>
<elem key="state">Valid credentials</elem>
</table>
</table>
<table key="55553/unknown">
<table>
<elem key="username">root</elem>
<elem key="state">Valid credentials</elem>
<elem key="password">root</elem>
</table>
</table>
</table>
In addition to fitting better (brute library is the verb, creds library
is the noun), this will allow creds.lua to use creds.Account internally
where necessary (see subsequent commits)
Also change old references to string argument "OPEN" into
creds.State.VALID.
This allows stdnse.keys to be used in a __pairs metamethod to, for
instance, yield keys in sorted order. Using next() bypasses the __pairs
metamethod that would be called when pairs() was used. Otherwise,
infinite recursion was possible.
Added use of stdnse.parse_timespec for timeout args. Used comm.lua
default timeouts in a couple cases. Corrected 2 cases of incorrect
documentation ("Default 60" when the default was 30 seconds).
1. Use "softmatched" to let Nmap print the service fingerprint for the
user to submit.
2. Run even if version detection got a good match. This allows it to be
run by-name, or to provide additional info if available. Existing match
will not be clobbered, though.
3. Use comm.lua's default timeouts. Also, no need to pass port.protocol,
since comm.tryssl will use the port table directly.
4. XML output
Previously, calling nmap.set_port_version would delete a service
fingerprint if it existed. Now, setting probestate to anything but
"hardmatched" will preserve the fingerprint, if it exists. This allows
scripts (like http-server-header) to use "softmatched" to set version
info but still encourage users to submit fingerprints.
1. export the comm.opencon function. Does all the connect/request
timeout, recv_before, and first data payload stuff that tryssl does, but
without trying SSL. Ought to save some boilerplate in some scripts
2. Make opencon use setup_connect instead of duplicating code.
3. Move a debug message about tryssl to tryssl from opencon
4. Transparently handle UDP in tryssl, in case someone does that. Debug
message about DTLS not being supported is printed, but otherwise just
connects with opencon. Previously, doing this would result in a
connection to the TCP version of the port, even if you passed in a port
table with port.protocol=="udp".
