Sublist3r
acme-dns
Sublist3r | acme-dns | |
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12 | 37 | |
9,243 | 1,969 | |
- | - | |
0.0 | 0.0 | |
3 months ago | 15 days ago | |
Python | Go | |
GNU General Public License v3.0 only | MIT License |
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Sublist3r
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Subdomain.center β discover all subdomains for a domain
You cannot hide anything on the internet anymore, the full IPv4 range is scanned regularly by multiple entities. If you open a port on a public IP it will get found.
If it's a obscure non-standard port it might take longer, but if it's on any of the standard ports it will get probed very quickly and included tools like shodan.io
The reason why I'm repeating this, is that not everyone knows this. People still (albeit less) put up elastic and mongodb instances with no authentication on public IP's.
The second thing which isn't well known is the Certificate Transparency logs. This is the reason why you can't (without a wildcard cert) hide any HTTPS service. When you ask Let's Encrypt (or any CA actually) to generate veryobscure.domain.tld they will send that to the Certificate Transparency logs. You can find every certificate which was minted for a domain on a tool like https://crt.sh
There are many tools like subdomain.center, https://hackertarget.com/find-dns-host-records/ comes to mind. The most impressive one I've seen, which found more much more than expected, is Detectify (which is a paid service, no affiliation), they seem to combine the passive data collection (like subdomain.center) with active brute to find even more subdomains.
But you can probably get 95% there by using CT and a brute-force tool like https://github.com/aboul3la/Sublist3r
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The 36 tools that SaaS can use to keep their product and data safe from criminal hackers (manual research)
Sublist3r
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Tools for subdomain brute forcing
sublist3r = https://github.com/aboul3la/Sublist3r
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sublist3r error: virustotal is probably now blocking your request can any one help me fixing this π₯Ί
Try following this step too - click here
- New NFT Subdomain: support.NFT.Gamestop.com
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New IPFS Subdomain - Possibly for a digital games platform?
For those asking what tool I was using, its called sublist3r (https://github.com/aboul3la/Sublist3r). It uses open source intelligence gathering (public info) as well as brute force to try and enumerate subdomains.
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Looking for an API like builtwith.com (let's you know what technology is behind website), but one that's opensource, or at least is more startup friendly ....
That said, keep in mind that not everything is going to find its way indexed in Google. If it's subdomains you're after, you can use tools like Sublist3r or Sudomy to pull data from multiple sources (not just DNS).
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The most important step in hacking - Enumeration
In a real-world scenario. You're likely to come across a target with more than one domain, each having it's own subdomains. There's plenty of tools that you can use to discover these. Again, PyRCON offers some options for this but I like tools such as sublist3r and publicly available records such as security trials.
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How to find out all the "routes" of a website?
Kali has sublist3r
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I believe etoro was HACKED yesterday
The downside is, wildcard DNS fills the results with false positives because every subdomain will return an IP address. There was an issue raised for sublister a few years ago (still open) that raised this exact issue: https://github.com/aboul3la/Sublist3r/issues/118
acme-dns
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Subdomain.center β discover all subdomains for a domain
Getting a wildcard certificate from LE might be a better option, depending on how easy the extra bit of if plumbing is with your lab setup.
You need to use DNS based domain identification, and once you have a cert distribute it to all your services. The former can be automated using various common tools (look at https://github.com/joohoi/acme-dns, self-hosted unless you are only securing toys you don't really care about, if you self host DNS or your registrar doesn't have useful API access) or you can leave that as an every ~ten weeks manual job, the latter involves scripts to update you various services when a new certificate is available (either pushing from where you receive the certificate or picking up from elsewhere). I have a little VM that holds the couple of wildcard certificates (renewing them via DNS01 and acmedns on a separate machine so this one is impossible to see from the outside world), it pushes the new key and certificate out to other hosts (simple SSH to copy over then restart nginx/Apache/other).
Of course you may decide that the shin if your own CA is easier than setting all this up, as you can sign long lived certificates for yourself. I prefer this because I don't need to switch to something else if I decide to give friends/others access to something.
- Easy HTTPS for your private networks
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I've created a solution for managing internal domains, how do I selfhost this more?
As someone else said, itβs a huge pain to run your own dns services. However, if you want some separation, I recently saw https://github.com/joohoi/acme-dns
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LeGo CertHub v0.9.0 with Docker Support
v0.9.1 is out and natively supports both https://github.com/joohoi/acme-dns and any dns provider available in https://github.com/acmesh-official/acme.sh
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How do you deal with SSL certs management?
I have set up an acme-dns server to answer ACME DNS Challenges: https://github.com/joohoi/acme-dns
- How to configure and use acme-dns?
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What is a good alternative if port 80 is blocked?
The DNS challenge can be easily automated using https://github.com/joohoi/acme-dns - you do need an IP you can run a DNS server on though.
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Setting up ssl on AGH
If your server is not accessible over the internet, you can still use Let's Encrypt or ZeroSSL to get a certificate. You'll just need to set up a DNS Challenge for things to work. This is a little more complicated, but can work even if your DNS provider doesn't have an API. For example, I use Google Domains and Google DNS (not cloud DNS) for my DNS server, but I've got an instance of acme-dns running on VPS box that handles the DNS auth for me. It's how every machine on my local network has valid certificates - but I annoyingly need to renew them every 90 days.
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Did Manjaro just forget to renew the SSL certificate?
It's a bit more involved, but you can set up wildcard certificates to update automatically. Certbot has some pre-made plugins for this for several DNS providers. If yours is not on that list, there's a tool called acme-dns which is a minimal DNS server you can run on your server and delegate _acme-challenge.yourdomain.com to. If you don't want to run that on your own, you can also use the publicly hosted server/API for it.
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Reverse proxy for internally hosted services
In case you're not already familiar with it: one thing I'd recommend is using https://github.com/joohoi/acme-dns to obtain the certificates. You basically just point the subdomain you need wildcard certs for at that DNS server (a one time thing, ie you don't have to do this every three months), and the related tool https://github.com/acme-dns/acme-dns-client can get the certificates in a nice, automated, way without you ever having to expose the private reverse proxy to the Internet.
What are some alternatives?
subbrute - A DNS meta-query spider that enumerates DNS records, and subdomains.
Nginx Proxy Manager - Docker container for managing Nginx proxy hosts with a simple, powerful interface
Sudomy - Sudomy is a subdomain enumeration tool to collect subdomains and analyzing domains performing automated reconnaissance (recon) for bug hunting / pentesting
lego - Let's Encrypt/ACME client and library written in Go
spiderfoot - SpiderFoot automates OSINT for threat intelligence and mapping your attack surface.
duckdns - Caddy module: dns.providers.duckdns
wpscan - WPScan WordPress security scanner. Written for security professionals and blog maintainers to test the security of their WordPress websites. Contact us via [email protected]
acme-dns-server - Simple DNS server for serving TXT records written in Python
RustScan - π€ The Modern Port Scanner π€
acme.sh - A pure Unix shell script implementing ACME client protocol
BloodHound - Six Degrees of Domain Admin
dehydrated - letsencrypt/acme client implemented as a shell-script β just add water