Features • Installation • Usage • Running tlsx • Join Discord
A fast and configurable TLS grabber focused on TLS based data collection and analysis.
- Fast And fully configurable TLS Connection
- Multiple Modes for TLS Connection
- Multiple TLS probes
- Auto TLS Fallback for older TLS version
- Pre Handshake TLS connection (early termination)
- Customizable Cipher / SNI / TLS selection
- JARM/JA3 TLS Fingerprint
- TLS Misconfigurations
- ASN,CIDR,IP,HOST, and URL input
- STD IN/OUT and TXT/JSON output
tlsx requires Go 1.21 to install successfully. To install, just run the below command or download pre-compiled binary from release page.
go install github.com/projectdiscovery/tlsx/cmd/tlsx@latesttlsx -hThis will display help for the tool. Here are all the switches it supports.
TLSX is a tls data gathering and analysis toolkit.
Usage:
tlsx [flags]
Flags:
INPUT:
-u, -host string[] target host to scan (-u INPUT1,INPUT2)
-l, -list string target list to scan (-l INPUT_FILE)
-p, -port string[] target port to connect (default 443)
SCAN-MODE:
-sm, -scan-mode string tls connection mode to use (ctls, ztls, openssl, auto) (default "auto")
-ps, -pre-handshake enable pre-handshake tls connection (early termination) using ztls
-sa, -scan-all-ips scan all ips for a host (default false)
-iv, -ip-version string[] ip version to use (4, 6) (default 4)
PROBES:
-san display subject alternative names
-cn display subject common names
-so display subject organization name
-tv, -tls-version display used tls version
-cipher display used cipher
-hash string display certificate fingerprint hashes (md5,sha1,sha256)
-jarm display jarm fingerprint hash
-ja3 display ja3 fingerprint hash (using ztls)
-wc, -wildcard-cert display host with wildcard ssl certificate
-tps, -probe-status display tls probe status
-ve, -version-enum enumerate and display supported tls versions
-ce, -cipher-enum enumerate and display supported cipher
-ct, -cipher-type value ciphers types to enumerate. possible values: all/secure/insecure/weak (comma-separated) (default all)
-ch, -client-hello include client hello in json output (ztls mode only)
-sh, -server-hello include server hello in json output (ztls mode only)
-se, -serial display certificate serial number
MISCONFIGURATIONS:
-ex, -expired display host with host expired certificate
-ss, -self-signed display host with self-signed certificate
-mm, -mismatched display host with mismatched certificate
-re, -revoked display host with revoked certificate
-un, -untrusted display host with untrusted certificate
CONFIGURATIONS:
-config string path to the tlsx configuration file
-r, -resolvers string[] list of resolvers to use
-cc, -cacert string client certificate authority file
-ci, -cipher-input string[] ciphers to use with tls connection
-sni string[] tls sni hostname to use
-rs, -random-sni use random sni when empty
-rps, -rev-ptr-sni perform reverse PTR to retrieve SNI from IP
-min-version string minimum tls version to accept (ssl30,tls10,tls11,tls12,tls13)
-max-version string maximum tls version to accept (ssl30,tls10,tls11,tls12,tls13)
-cert, -certificate include certificates in json output (PEM format)
-tc, -tls-chain include certificates chain in json output
-vc, -verify-cert enable verification of server certificate
-ob, -openssl-binary string OpenSSL Binary Path
-hf, -hardfail strategy to use if encountered errors while checking revocation status
OPTIMIZATIONS:
-c, -concurrency int number of concurrent threads to process (default 300)
-cec, -cipher-concurrency int cipher enum concurrency for each target (default 10)
-timeout int tls connection timeout in seconds (default 5)
-retry int number of retries to perform for failures (default 3)
-delay string duration to wait between each connection per thread (eg: 200ms, 1s)
UPDATE:
-up, -update update tlsx to latest version
-duc, -disable-update-check disable automatic tlsx update check
OUTPUT:
-o, -output string file to write output to
-j, -json display output in jsonline format
-dns display unique hostname from SSL certificate response
-ro, -resp-only display tls response only
-silent display silent output
-nc, -no-color disable colors in cli output
-v, -verbose display verbose output
-version display project version
DEBUG:
-health-check, -hc run diagnostic check upExamples of using tlsx as library are provided in the examples folder.
tlsx requires ip to make TLS connection and accept multiple format as listed below:
AS1449 # ASN input
173.0.84.0/24 # CIDR input
93.184.216.34 # IP input
example.com # DNS input
example.com:443 # DNS input with port
https://example.com:443 # URL input portInput host can be provided using -host / -u flag, and multiple values can be provided using comma-separated input, similarly file input is supported using -list / -l flag.
Example of comma-separated host input:
$ tlsx -u 93.184.216.34,example.com,example.com:443,https://example.com:443 -silentExample of file based host input:
$ tlsx -list host_list.txtPort Input:
tlsx connects on port 443 by default, which can be customized using -port / -p flag, single or multiple ports can be specified using comma sperated input or new line delimited file containing list of ports to connect.
Example of comma-separated port input:
$ tlsx -u hackerone.com -p 443,8443
Example of file based port input:
$ tlsx -u hackerone.com -p port_list.txt
Note:
When input host contains port in it, for example,
8.8.8.8:443orhackerone.com:8443, port specified with host will be used to make TLS connection instead of default or one provided using-port / -pflag.
This will run the tool against the given CIDR range and returns hosts that accepts tls connection on port 443.
$ echo 173.0.84.0/24 | tlsx
_____ _ _____ __
|_ _| | / __\ \/ /
| | | |__\__ \> <
|_| |____|___/_/\_\ v0.0.1
projectdiscovery.io
[WRN] Use with caution. You are responsible for your actions.
[WRN] Developers assume no liability and are not responsible for any misuse or damage.
173.0.84.69:443
173.0.84.67:443
173.0.84.68:443
173.0.84.66:443
173.0.84.76:443
173.0.84.70:443
173.0.84.72:443TLS certificate contains DNS names under subject alternative name and common name field that can be extracted using -san, -cn flag.
$ echo 173.0.84.0/24 | tlsx -san -cn -silent
173.0.84.104:443 [uptycspay.paypal.com]
173.0.84.104:443 [api-3t.paypal.com]
173.0.84.104:443 [api-m.paypal.com]
173.0.84.104:443 [payflowpro.paypal.com]
173.0.84.104:443 [pointofsale-s.paypal.com]
173.0.84.104:443 [svcs.paypal.com]
173.0.84.104:443 [uptycsven.paypal.com]
173.0.84.104:443 [api-aa.paypal.com]
173.0.84.104:443 [pilot-payflowpro.paypal.com]
173.0.84.104:443 [pointofsale.paypal.com]
173.0.84.104:443 [uptycshon.paypal.com]
173.0.84.104:443 [api.paypal.com]
173.0.84.104:443 [adjvendor.paypal.com]
173.0.84.104:443 [zootapi.paypal.com]
173.0.84.104:443 [api-aa-3t.paypal.com]
173.0.84.104:443 [uptycsize.paypal.com]For ease of automation, optionally -resp-only flag can be used to list only dns names in CLI output.
$ echo 173.0.84.0/24 | tlsx -san -cn -silent -resp-only
api-aa-3t.paypal.com
pilot-payflowpro.paypal.com
pointofsale-s.paypal.com
uptycshon.paypal.com
a.paypal.com
adjvendor.paypal.com
zootapi.paypal.com
api-aa.paypal.com
payflowpro.paypal.com
pointofsale.paypal.com
uptycspay.paypal.com
api-3t.paypal.com
uptycsize.paypal.com
api.paypal.com
api-m.paypal.com
svcs.paypal.com
uptycsven.paypal.com
uptycsven.paypal.com
a.paypal.com
api.paypal.com
pointofsale-s.paypal.com
pilot-payflowpro.paypal.comsubdomains obtained from TLS certificates can be further piped to other PD tools for further inspection, here is an example piping tls subdomains to dnsx to filter passive subdomains and passing to httpx to list hosts running active web services.
$ echo 173.0.84.0/24 | tlsx -san -cn -silent -resp-only | dnsx -silent | httpx
__ __ __ _ __
/ /_ / /_/ /_____ | |/ /
/ __ \/ __/ __/ __ \| /
/ / / / /_/ /_/ /_/ / |
/_/ /_/\__/\__/ .___/_/|_|
/_/ v1.2.2
projectdiscovery.io
Use with caution. You are responsible for your actions.
Developers assume no liability and are not responsible for any misuse or damage.
https://api-m.paypal.com
https://uptycsize.paypal.com
https://api.paypal.com
https://uptycspay.paypal.com
https://svcs.paypal.com
https://adjvendor.paypal.com
https://uptycshap.paypal.com
https://uptycshon.paypal.com
https://pilot-payflowpro.paypal.com
https://slc-a-origin-pointofsale.paypal.com
https://uptycsven.paypal.com
https://api-aa.paypal.com
https://api-aa-3t.paypal.com
https://uptycsbrt.paypal.com
https://payflowpro.paypal.com
http://pointofsale-s.paypal.com
http://slc-b-origin-pointofsale.paypal.com
http://api-3t.paypal.com
http://zootapi.paypal.com
http://pointofsale.paypal.com$ subfinder -d hackerone.com | tlsx -tls-version -cipher
mta-sts.hackerone.com:443 [TLS1.3] [TLS_AES_128_GCM_SHA256]
hackerone.com:443 [TLS1.3] [TLS_AES_128_GCM_SHA256]
api.hackerone.com:443 [TLS1.3] [TLS_AES_128_GCM_SHA256]
mta-sts.managed.hackerone.com:443 [TLS1.3] [TLS_AES_128_GCM_SHA256]
mta-sts.forwarding.hackerone.com:443 [TLS1.3] [TLS_AES_128_GCM_SHA256]
www.hackerone.com:443 [TLS1.3] [TLS_AES_128_GCM_SHA256]
support.hackerone.com:443 [TLS1.2] [TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256]A list of host can be provided to tlsx to detect expired / self-signed / mismatched / revoked / untrusted certificates.
$ tlsx -l hosts.txt -expired -self-signed -mismatched -revoked -untrusted
_____ _ _____ __
|_ _| | / __\ \/ /
| | | |__\__ \> <
|_| |____|___/_/\_\ v0.0.1
projectdiscovery.io
[WRN] Use with caution. You are responsible for your actions.
[WRN] Developers assume no liability and are not responsible for any misuse or damage.
wrong.host.badssl.com:443 [mismatched]
self-signed.badssl.com:443 [self-signed]
expired.badssl.com:443 [expired]
revoked.badssl.com:443 [revoked]
untrusted-root.badssl.com:443 [untrusted]JARM TLS Fingerprint
$ echo hackerone.com | tlsx -jarm -silent
hackerone.com:443 [29d3dd00029d29d00042d43d00041d5de67cc9954cc85372523050f20b5007]JA3 TLS Fingerprint
$ echo hackerone.com | tlsx -ja3 -silent
hackerone.com:443 [20c9baf81bfe96ff89722899e75d0190]tlsx does support multiple probe flags to query specific data, but all the information is always available in JSON format, for automation and post processing using -json output is most convenient option to use.
echo example.com | tlsx -json -silent | jq .{
"timestamp": "2022-08-22T21:22:59.799053+05:30",
"host": "example.com",
"ip": "93.184.216.34",
"port": "443",
"probe_status": true,
"tls_version": "tls13",
"cipher": "TLS_AES_256_GCM_SHA384",
"not_before": "2022-03-14T00:00:00Z",
"not_after": "2023-03-14T23:59:59Z",
"subject_dn": "CN=www.example.org, O=Internet Corporation for Assigned Names and Numbers, L=Los Angeles, ST=California, C=US",
"subject_cn": "www.example.org",
"subject_org": [
"Internet Corporation for Assigned Names and Numbers"
],
"subject_an": [
"www.example.org",
"example.net",
"example.edu",
"example.com",
"example.org",
"www.example.com",
"www.example.edu",
"www.example.net"
],
"issuer_dn": "CN=DigiCert TLS RSA SHA256 2020 CA1, O=DigiCert Inc, C=US",
"issuer_cn": "DigiCert TLS RSA SHA256 2020 CA1",
"issuer_org": [
"DigiCert Inc"
],
"fingerprint_hash": {
"md5": "c5208a47259d540a6e3404dddb85af91",
"sha1": "df81dfa6b61eafdffffe1a250240db5d2e6cee25",
"sha256": "7f2fe8d6b18e9a47839256cd97938daa70e8515750298ddba2f3f4b8440113fc"
},
"tls_connection": "ctls",
"sni": "example.com"
}tlsx provides multiple modes to make TLS Connection -
auto(automatic fallback to other modes upon failure) - defaultctls(crypto/tls)ztls(zcrypto/tls)openssl(openssl)
Some pointers for the specific mode / library is highlighted in linked discussions, auto mode is supported to ensure the maximum coverage and scans for the hosts running older version of TLS by retrying the connection using ztls and openssl mode upon any connection error.
An example of using ztls mode to scan website using old / outdated TLS version.
$ echo tls-v1-0.badssl.com | tlsx -port 1010 -sm ztls
_____ _ _____ __
|_ _| | / __\ \/ /
| | | |__\__ \> <
|_| |____|___/_/\_\ v0.0.1
projectdiscovery.io
[WRN] Use with caution. You are responsible for your actions.
[WRN] Developers assume no liability and are not responsible for any misuse or damage.
tls-v1-0.badssl.com:1010To use the openssl connection mode, you will need to have openssl installed on your system. Most modern systems come with openssl pre-installed, but if it is not present on your system, you can install it manually. You can check if openssl is installed by running the command openssl version. If openssl is installed, this command will display the version number.
|
tlsx supports terminating SSL connection early which leads to faster scanning and less connection request (disconnecting after TLS For more detail, please refer to Hunting-Certificates-And-Servers by @erbbysam An example of using $ tlsx -u example.com -pre-handshake
_____ _ _____ __
|_ _| | / __\ \/ /
| | | |__\__ \> <
|_| |____|___/_/\_\ v0.0.1
projectdiscovery.io
[WRN] Use with caution. You are responsible for your actions.
[WRN] Developers assume no liability and are not responsible for any misuse or damage.
example.com:443
|
Minimum and Maximum TLS versions can be specified using -min-version and -max-version flags, as default these value are set by underlying used library.
The acceptable values for TLS version is specified below.
ssl30tls10tls11tls12tls13
Here is an example using max-version to scan for hosts supporting an older version of TLS, i.e TLS v1.0
$ tlsx -u example.com -max-version tls10
_____ _ _____ __
|_ _| | / __\ \/ /
| | | |__\__ \> <
|_| |____|___/_/\_\ v0.0.1
projectdiscovery.io
[WRN] Use with caution. You are responsible for your actions.
[WRN] Developers assume no liability and are not responsible for any misuse or damage.
example.com:443Supported custom cipher can provided using -cipher-input / -ci flag, supported cipher list for each mode is available at wiki page.
$ tlsx -u example.com -ci TLS_AES_256_GCM_SHA384 -cipher$ tlsx -u example.com -ci cipher_list.txt -cipherThis program optionally uses:
- zcrypto library from the zmap team.
- cfssl library from the cloudflare team
- cipher data from ciphersuite.info for ciphersuite classification
tlsx is made with ❤️ by the projectdiscovery team and distributed under MIT License.
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