147 entries in 0.057s
Framedragger: ty diana_coman. sad to see the state of tmsr isp affairs. i suppose it was kind of always like this, the state simply got.. actualised, so to speak. still, am planning on giving small talk on ssh scan to hackerspace people, wanted to link to phuctor, now - can't. :( ☟︎
Framedragger: !$ssh
Framedragger: asciilifeform: unless #3 you meant ssh key to rfc4880 pgp converter (http://siphnos.mkj.lt/datadrop/crap-from-scans-to-be-sorted/ssh-to-pgp.py), but again, prolly not. don't remember seeing any phuctor innards tbh (except for fingerprint algo), but could just be me ☟︎
Framedragger: PSA, the `!$ssh` command may go offline for a while "soon", moving the db server which is used for this to a better, more tremendous place
Framedragger: i just mean that a box behind NAT won't show up in that !$ssh query
Framedragger: ah, ssh blackhole-shell!
Framedragger: you may not use it yourself because, barf, (1) "just get a real thing already", and (2) "i have more things to host, so why should i pay for this AND that, separately". but for someone who only needs bouncer and maybe-sometimes-ssh (writing small bot in vim, connecting it to irc, etc.), it makes sense to pay very-little for a very-little-thing.
Framedragger: mircea_popescu: yes, something like that. same !!v principle. user gets ssh login. billed (if at all) by the minute, or the likes.
Framedragger: ^ probably worth a peek. tls/ssh as input.
Framedragger: ^ SSH-1.99-HUAWEI-1.5 & SSH-1.99-DOPRA-1.5 (respectively), heh
Framedragger: look, i agree with this attitude; the ssh banners, etc etc are and will remain publicly available. these are *important* standards to have.
Framedragger: mircea_popescu: shit i meant `!$ ssh` not getarchive, i'm forgetting myself lol.
Framedragger: just ftr, i've been poking around scans.io which now has a search interface for (e.g.) all ipv4 space (among other things). e.g.: https://www.censys.io/ipv4/ (ssh - banner, whole public key, etc.; also https, etc etc.)
Framedragger: (granted, ssh-keygen is a pos.)
Framedragger: "you using ssh-keygen, are you out of your mind!1"
Framedragger: then i retract my previous snappy remark. ssh lol.
Framedragger: (i wonder if he tried just-ssh'ing, no autossh first. because he needs to answer "yes" to "trust this fingerprint?" prompt first, it seems. just that.)
Framedragger: tbh that log snippet in that post (http://trilema.com/2017/how-i-almost-created-a-constellation-of-bitcoin-nodes/), "evidently new ssh is needed altogether" reads a bit like "oh i need to generate ssh key for this to work? well fuck ssh, obvs it's a pos."
Framedragger: i expect most of those broken openssh keys were generated by ssh-keygen
Framedragger: mircea_popescu: heh feel free to convert it to openpgp (http://siphnos.mkj.lt/datadrop/crap-from-scans-to-be-sorted/ssh-to-pgp.py) and submit to phuctor.
Framedragger: snarky trinque uses ssh and bash for 100 machine setups, too
Framedragger: (`!$ssh` won't work for a bit, database server which scriba connects to needs to be reinstalled from the ground up)
Framedragger: fromsiphnos: you'll need to learn things, this is not a (completely) trivial hacker-kiddo thing, in the sense of finding a list of "hackable" IPs on a forum and then trying user/pass pairs. :) you'd need to be understand how public key based authentication works, and what the distinction between a server ssh key and a client ssh key is.
Framedragger: fromsiphnos: no, not user/pass, though one could try a bit of that, too, but as in, generate small set of "debianized" ssh client keys, and try all of'em. much smaller set. see logs above
Framedragger: so basically that's the kind of info available. more later, hopefully. there have been some scans of other ports on the ssh-broken (phucted, as in http://phuctor.nosuchlabs.com/ ) boxes, etc.; but no central place for those scans.
Framedragger: but good news, as asciilifeform et al. have pointed out before, a lot of client keys get generated on ssh servers. if random number generation or other things are broken on the latter, you can *derive* the (set of) the former, in some cases :)
Framedragger: fromsiphnos: what do you mean by access? connect to, and get a login challenge from server? yes. access as in "hack da system" login access? no - this is *server* ssh key, not client
Framedragger: (the siphnos datadrop (http://siphnos.mkj.lt/datadrop/) gives the banners ("banners" folder) and keys (in various formats), including raw ssh-keyscan output (*_scan.tar.bz2), as e,N,IP CSVs (e-N-IP*), a.k.a. tmsr format, and converted openpgp (rfc4880) format.)
Framedragger: the former (ssh-keyscan output) is basically, ssh-rsa public keys, plus ssh server banners (ssh hello's).
Framedragger: i suppose it's not documented anywhere properly as of yet, hm! fromsiphnos, are you by chance familiar with the `ssh-keyscan` tool (bundled in by default in the openssh package). it's basically output from that tool, plus a list of all IP addresses which can be connected to on port 22.
Framedragger: !$ ssh c d
Framedragger: a b !$ ssh c d
Framedragger: !~echo !$ssh
Framedragger: the `ssh` command should take multiple IPs per msg, btw
Framedragger: will check later! main guess is that there's no actuall ssh server running on port 22 (or rather, there was none at time of scan.) would be great to know the overall statistics, yes.
Framedragger: !$ssh
Framedragger: !$ ssh
Framedragger: !$ ssh
Framedragger: also, as you noted earlier, there's a good chance a bunch of ssh *client* keys were generated on those machines, too, so also possible to try to bruteforce-login with generated keys (to servers which have broken rngs)
Framedragger: well. for one, it's nice if you can distinguish between different keyholders, no? in the particular case of ssh-rsa keys, "which ip used this key?"
Framedragger: i think some sysadmins may want to be able to submit their ssh-rsa pubkeys themselves. and phuctor only accepts openpgp format, this needs to be converted (ssh pubkey -> gpg pubkey). so i'm adapting/stealing jurov's script and cleaning it up.
Framedragger: this was while testing a script to be given to this austrian dude who wrote me, asking how to submit his server's ssh key (ssh server running on a nonstandard port)
Framedragger: i guess one should standardise terms here. the larger number corresponds to "something's running there" servers, found via 1st scan phase. the lower 15M number corresponds to "actually speaks ssh protocol" servers, found via 2nd (ssh-keyscan) scan phase.
Framedragger: mircea_popescu: the 20M or so servers which responded to TCP SYNs sent to port 22. however, out of those, about 5M (or however many) did not respond to ssh handshakes, hence the lower number in the banners and phuctor payloads.
Framedragger: (and http://siphnos.mkj.lt/datadrop/s1_ip.tar.bz2 and http://siphnos.mkj.lt/datadrop/s2_ip.tar.bz2 are all the 15`646`188 ssh IPs for anyone interested.) ☟︎
Framedragger: oh and, http://siphnos.mkj.lt/datadrop/s1_scan.tar.bz2 and http://siphnos.mkj.lt/datadrop/s2_scan.tar.bz2 (note, large files) are the stdout of ssh-keyscan and contains the public keys in raw log format. just for completeness' sake. #actualscientificreplicabilitymotherfuckers ☟︎
Framedragger: (i should write down some stuff before i forget, such as, figuring out ssh-keyscan limits etc.; luckily i wasn't dumb enough to delete any scripts written etc...)
Framedragger: (and @all, http://siphnos.mkj.lt/datadrop/ is the canonical URL for all data gathered from the ssh scans. includes raw stderr logs from ssh-keyscan utility, e.g. http://siphnos.mkj.lt/datadrop/banners/s1/1_err_scan.log ; scripts for processing these are http://siphnos.mkj.lt/datadrop/banners/write_ssh_banners.py and http://siphnos.mkj.lt/datadrop/banners/process_all_banners.sh ) ☟︎
Framedragger: (note, some of those version strings contain OS string, some of them don't; these TXTs store versionstrings-as-they-were-seen, without any ssh-server/OS version separation.)
Framedragger: asciilifeform: not sure if you'd make use of this, but since i needed this myself, may as well link to it -- ssh banners for all ~16M ssh servers: http://siphnos.mkj.lt/datadrop/banners/s1/s1_banners.tar.gz
Framedragger: imma dump all this in a nice format now, i'll separate OS string from ssh versionstring i guess
Framedragger: but it also does shit like [SSH-2.0-OpenSSH_5.1p1 Debian-5] vs. older [SSH-2.0-OpenSSH_5.5p1 Debian-4ubuntu5]
Framedragger: btw i'm going thru those ssh banners from ssh scan logs finally, and there's some inconsistent crap there (thanks openssh): same ip&port may respond with two different banners during same scan (the ssh-keyscan utility may spit banners for same server multiple times). it seems usually the mismatch is in adding a minor version onto ssh server string only (e.g. [SSH-2.0-OpenSSH_5.8] vs. older [SSH-2.0-OpenSSH_5.8p2])
Framedragger: ssh host key not automatically regenned upon upgarde, is it
Framedragger: or windows admin running ssh server so he can actually get work done :p
Framedragger: http://siphnos.mkj.lt/phuctored-ssh-boxes/ << oh, this belongs to consc.net, run by one david chalmers, dude whose papers i've actually read. lulzy
Framedragger: asciilifeform: short-term remedy until more civilised means is concocted: http://siphnos.mkj.lt/phuctored-ssh-boxes/all.txt
Framedragger will try to find time to tie up some loose ends (log, ssh banners in nice format, etc)
Framedragger: http://btcbase.org/log/2016-12-08#1579752 << seeing as nobody was doing that, here's the result of basically that: http://siphnos.mkj.lt/phuctored-ssh-boxes/ - i may or may not do the other things (banners for http/ssh/telnet/ftp/etc), everyone feel free to do the latter, you can ☝︎☟︎☟︎
Framedragger: EDLionX: there's a bunch of boxes with factored ssh keys, would be great for someone to go through them and check what webserver crap they're running... http://btcbase.org/log/2016-11-29#1574580 , http://btcbase.org/log/2016-11-29#1574597 if interested, go ahead :p ☝︎☝︎
Framedragger: (the pop is interesting tho, as some of these hosting-company-i-use boxen get provisioned with everything installed, and i'm sure as fuck that "not all" customers regen ssh host keys. so there may be more pops, or other interesting goodness. probably the whole /16 is worthy of getting properly port-scanned, lots of broken stuff there i'm sure - if anyone has time etc)
Framedragger: in retrospect, gpg comments were too long.. i've made them shorter for the 'additional' ssh key bundle (last ~3M keys), but that won't be ingested for a while
Framedragger: (and for logs, http://siphnos.mkj.lt/datadrop/ << all data from ssh scans, in a more stable place.)
Framedragger: asciilifeform: wouldn't be sure re. costs. vps can be $5/$10 a month, and stuff i used for ssh key crawling (scaleway) can bill hourly
Framedragger: ben_vulpes: i'll think about this next week. it may be that it's not really needed, yeah - i agree. and integration of things such as ssh server banners with phuctor keys is something that asciilifeform said he'd be up to do on phuctor's db itself..
Framedragger: gabriel_laddel: you need an ssh account on a vps?
Framedragger: this reminds me, i've got all teh ecdsa ssh keys, too. to be looked at one day..
Framedragger: asciilifeform: makes me want to try top 100 password lists on telnet/ssh/etc on the whole ipv4, you know
Framedragger: in fact.. due to https://hdm.io/tools/debian-openssl/ correctly pointing out that "This flaw is ugly because even systems that do not use the Debian software need to be audited in case any key is being used that was created on a Debian system.", someone should attempt botnet-brute-login to all 13M+ (i forget lol) ssh hosts with rng-fucked client keys. ☟︎
Framedragger: http://log.mkj.lt/trilema/20161117/#508 << someone with time on their hands should write script to attempt logins at all of these with rng-fucked ssh keys (available at https://hdm.io/tools/debian-openssl/ i think though did not check, or re-gen themselves, shouldnt be hard)!
Framedragger: (though, iirc github removed shitty ssh client keys - don't recall when jurov collected them, i think he mentioned this)
Framedragger: btw, afaik lots of ssh *client* keys got generated this way. soo, ssh client key dump should be interesting... and it can also be used to, you know, directly own boxes.
Framedragger: ye olde debian prng bug => small set of possible ssh keys => factors extracted for keys => factors inserted into db?
Framedragger: but the 2nd ssh-key-extractor stage can do the stuff you want, yes.
Framedragger: also, i may want to re-run the base ipv4 ssh server finder at some point, i'm sure i'll get some more keys :p
Framedragger: well for one ssh client keys normally have an email/ID associated with them, not sure if ssh agent would like an ssh server key. in theory, yes, sure
Framedragger: i mean in practical terms, of course, theoretically, but as in, would a canonical ssh agent eat it up
Framedragger: can you even use an ssh server key as ssh client key (and yes i agree if it's easy to do, someone will have done it)
Framedragger: mircea_popescu: absolutely - will do! though, those 22mil boxes have ssh running on them; there's prob a semi-quick way to get a broader "is it generally online" list, too. but, gotta start somewhere
Framedragger: [things are back up. also, doing ssh stuff via shitphone sometimes worx.]
Framedragger: (crazy. i'm dumping the contents of vim buffer through the literal ssh terminal, by hand, 'cause i can't save them and i need to. good times!)
Framedragger: asciilifeform: btw i have all the version banners (for all the hosts in the ssh keyset) stored, probably a good idea to make that available i guess?
Framedragger: wonder what tmsr thinks of ipython notebooks. basically you go to website and are presented with python interpreter, and a ready-made list of commands for graphing, doing stats etc. thinking of doing one of these for some initial ssh keyset analysis. nothing too serious at all ☟︎☟︎
Framedragger: example: (ssh-rsa key from (12 July 2016 extraction)) <sshscan-queries+>
Framedragger: http://btcbase.org/log/2016-07-18#1504809 << just fyi the new 1.82M ssh key diff won't have that keyword in there, as i've shortened the comment string, as per various grumblings re this. ☝︎
Framedragger: logging in and resetting boxes via cracked *client* ssh keys could be a thing, though! keys are already retrieved i take it :) http://btcbase.org/log/2016-06-20#1485892 ☝︎
Framedragger: and e,N,IP for the additional 1.82M key ball is in the (file at top, directories under contain the openpgp'd versions). hope this makes sense, it's a bit ad hoc
Framedragger: *to include the new ssh_openpgp_diff_2016-07-13.tar is what i meant
Framedragger: asciilifeform: and signature (updated checksums file to include the new ssh_openpgp_all_2016-06-20.tar):
Framedragger: this concludes the ipv4 ssh key scan (the new keys are due to re-scan + the previously-excluded hetzner hosting ip ranges). i may rescan in a couple of weeks or a month to see how many new etc (and in general it would be a good and interesting exercise, etc.) some kind of writeup will follow...eventually
Framedragger: asciilifeform: i have moar ssh keys for ya: (diff from that 10M bunch, i.e. only new ones) 920M file, 1.82M new ssh keys. ☟︎
Framedragger: from rescan of ipv4, from 'untainted' ip addresses. the ">1M" is due not only to rescan itself, but also because i had excluded ipv4 ranges for hetzner which had been sending tons of abuse complaintz. i can handle those complaints now. but i had forgotten about exclusion of hetzner ssh hosts. the new tarball will fix this (it won't include any old ssh keys, only new ones).
Framedragger: trinque: re. "ssh ones are a bit long." << yeah you're right, need to shorten them..
Framedragger: http://btcbase.org/log/2016-07-10#1500536 << yeah, hm. suggestions? a non-ad-hoc solution would be to make deedbot split its irc lines as needed i suppose; or for this particular case, not to mention the comment in the gpg key if it's too long, or to truncate it; or to consider shorter gpg comments for these ssh keys in the future i guess.. ☝︎
Framedragger: woohoo re. ssh keys :) good stuff. lol @ teh dsl provider.
Framedragger: hm, box.cock.li seems to be down, and ssh host key on vc's vps seems to have changed :/ hrmph.
Framedragger: ..so no truly-broken keys from the ssh keyset yet, i take it! :)
Framedragger: http://btcbase.org/log/2016-07-04#1496894 << yeah so just to clarify, there were ca. 20M hosts 'up', and ca. 10M ssh keys extracted from those 20M online candidates ☝︎
Framedragger: but yeh dunno about ssh
Framedragger: i would like to scan the whole /0 0:65535 range some time though, i'm sure there'd be quite a few ssh servers lurking behind strange ports, and quite a lot of them could be old embedded gadgets. just speculation tho