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mozilla/tls-observatory: An observatory for TLS configurations, X509 certificates, and more.

The Mozilla TLS Observatory is a suite of tools for analysis and inspection on Transport Layer Security (TLS) services. The components of TLS Observatory include:

Want the WebUI? Check out Mozilla's Observatory !

You can use the TLS Observatory to compare your site against the mozilla guidelines. It requires Golang 1.15+ to be installed:

$ go version
go version go1.15 linux/amd64

$ export GOPATH="$HOME/go"
$ mkdir $GOPATH

$ export PATH=$GOPATH/bin:$PATH

Then get the binary:

$ go get github.com/mozilla/tls-observatory/tlsobs

And scan using our hosted service:

$ tlsobs tls-observatory.services.mozilla.com
Scanning tls-observatory.services.mozilla.com (id 13528951)
Retrieving cached results from 20h33m1.379461888s ago. To run a new scan, use '-r'.

--- Certificate ---
Subject  C=US, O=Mozilla Corporation, CN=tls-observatory.services.mozilla.com
SubjectAlternativeName
- tls-observatory.services.mozilla.com
Validity 2016-01-20T00:00:00Z to 2017-01-24T12:00:00Z
SHA1     FECA3CA0F4B726D062A76F47635DD94A37985105
SHA256   315A8212CBDC76FF87AEB2161EDAA86E322F7C18B27152B5CB9206297F3D3A5D
SigAlg   ECDSAWithSHA256
Key      ECDSA 384bits P-384
ID       1281826

--- Trust ---
Mozilla Microsoft Apple Android
   ✓        ✓       ✓      ✓

--- Chain of trust ---
C=US, O=Mozilla Corporation, CN=tls-observatory.services.mozilla.com (id=1281826)
└──C=US, O=DigiCert Inc, CN=DigiCert ECC Secure Server CA (id=5922)
   └──C=US, O=DigiCert Inc, OU=www.digicert.com, CN=DigiCert Global Root CA (id=41)



--- Ciphers Evaluation ---
prio cipher                        protocols pfs                curves
1    ECDHE-ECDSA-AES128-GCM-SHA256 TLSv1.2   ECDH,P-256,256bits prime256v1
2    ECDHE-ECDSA-AES256-GCM-SHA384 TLSv1.2   ECDH,P-256,256bits prime256v1
OCSP Stapling        false
Server Side Ordering true
Curves Fallback      false

--- Analyzers ---
* Mozilla evaluation: modern
  - for modern level: consider adding ciphers ECDHE-RSA-AES256-GCM-SHA384, ECDHE-ECDSA-CHACHA20-POLY1305, ECDHE-RSA-CHACHA20-POLY1305, ECDHE-RSA-AES128-GCM-SHA256, ECDHE-ECDSA-AES256-SHA384, ECDHE-RSA-AES256-SHA384, ECDHE-ECDSA-AES128-SHA256, ECDHE-RSA-AES128-SHA256
  - for modern level: consider enabling OCSP stapling
  - for modern level: increase priority of ECDHE-ECDSA-AES256-GCM-SHA384 over ECDHE-ECDSA-AES128-GCM-SHA256
  - for modern level: fix ciphersuite ordering, use recommended modern ciphersuite
  - oldest clients: Firefox 27, Chrome 30, IE 11 on Windows 7, Edge 1, Opera 17, Safari 9, Android 5.0, Java 8
* Grade: A (93/100)

The analysis at the end tell you what need to be changed to reach the old, intermediate or modern level. We recommend to target the intermediate level by default, and modern if you don't care about old clients.

Using the tlsobs client from Docker

A docker container also exists that contains the CLI, API, Scanner and Runner. Fetch is from docker pull mozilla/tls-observatory.

$ docker pull mozilla/tls-observatory
$ docker run -it mozilla/tls-observatory tlsobs accounts.firefox.com

You can use the Kubernetes configuration provided in https://github.com/mozilla/tls-observatory/tree/master/kubernetes , or alternatively, you can do the following:

You can use the mozilla/tls-observatory docker container for development:

$ docker pull mozilla/tls-observatory
$ docker run -it mozilla/tls-observatory /bin/bash
root@05676e6789dd:~# cd $GOPATH/src/github.com/mozilla/tls-observatory
root@05676e6789dd:/go/src/github.com/mozilla/tls-observatory# make

However, even with the docker container, you will need to setup your own postgresql database. See below.

To build a development environment from scratch, you will need Go 1.15 or above. You can set it up on your own machine or via the golang:1.15 Docker container.

Retrieve a copy of the source code using go get, to place it directly under $GOPATH/src/github.com/mozilla/tls-observatory, then use make to build all components.

$ docker run -it golang:1.15

root@c63f11b8852b:/go# go get github.com/mozilla/tls-observatory
package github.com/mozilla/tls-observatory: no buildable Go source files in /go/src/github.com/mozilla/tls-observatory

root@c63f11b8852b:/go# cd $GOPATH/src/github.com/mozilla/tls-observatory

root@c63f11b8852b:/go/src/github.com/mozilla/tls-observatory# make

make runs the tests and compiles the scanner, api, command line client and runner. The resulting binaries are placed under $GOPATH/bin.

TLS Observatory uses PostgreSQL > 9.4. To create a database, use the schema in database/schema.sql.

postgres=# create database observatory;
CREATE DATABASE

postgres=# \c observatory
You are now connected to database "observatory" as user "postgres".

postgres=# \i /go/src/github.com/mozilla/tls-observatory/database/schema.sql

This automatically creates all tables, indexes, users and grants to work with the default configuration.

Starting the API and Scanner

First symlink the configuration to /etc/observatory and the cipherscan executable to /opt/cipherscan, as follows:

root@c63f11b8852b:/# ln -s $GOPATH/src/github.com/mozilla/tls-observatory/conf /etc/tls-observatory
root@c63f11b8852b:/# ln -s $GOPATH/src/github.com/mozilla/tls-observatory/cipherscan /opt/cipherscan

Then start tlsobs-api and tlsobs-scanner. The API will listen on port 8083, on localhost (or 172.17.0.2 if you're running in Docker).

To run a scan using the local scanner, set the -observatory flag of the tlsobs client to use the local API, as follows:

$ tlsobs -observatory http://172.17.0.2:8083 ulfr.io

Customize the configuration file under conf/api.cfg and using the following environment variables:

Customize the configuration file under conf/scanner.cfg and using the following environment variables:

Runs regular tests against target sites and sends notifications.

See conf/runner.yaml for an example of configuration. Some configuration parameters can also be provided through environment variables:

Schedule a scan of a given target.

$ curl -X POST 'https://tls-observatory.services.mozilla.com/api/v1/scan?target=ulfr.io&rescan=true'

Parameters:

For example, with curl:

curl -X POST "http://localhost:8083/api/v1/scan?target=mozilla.org&rescan=true&params=%7B%0A%20%20%22ev-checker%22%3A%20%7B%0A%20%20%22rootcertificate%22%3A%20%22-----BEGIN%20CERTIFICATE-----%5CnMIIDxTCCAq2gAwIBAgIQAqxcJmoLQJuPC3nyrkYldzANBgkqhkiG9w0BAQUFADBs%5CnMQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3%5Cnd3cuZGlnaWNlcnQuY29tMSswKQYDVQQDEyJEaWdpQ2VydCBIaWdoIEFzc3VyYW5j%5CnZSBFViBSb290IENBMB4XDTA2MTExMDAwMDAwMFoXDTMxMTExMDAwMDAwMFowbDEL%5CnMAkGA1UEBhMCVVMxFTATBgNVBAoTDERpZ2lDZXJ0IEluYzEZMBcGA1UECxMQd3d3%5CnLmRpZ2ljZXJ0LmNvbTErMCkGA1UEAxMiRGlnaUNlcnQgSGlnaCBBc3N1cmFuY2Ug%5CnRVYgUm9vdCBDQTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAMbM5XPm%5Cn%2B9S75S0tMqbf5YE%2Fyc0lSbZxKsPVlDRnogocsF9ppkCxxLeyj9CYpKlBWTrT3JTW%5CnPNt0OKRKzE0lgvdKpVMSOO7zSW1xkX5jtqumX8OkhPhPYlG%2B%2BMXs2ziS4wblCJEM%5CnxChBVfvLWokVfnHoNb9Ncgk9vjo4UFt3MRuNs8ckRZqnrG0AFFoEt7oT61EKmEFB%5CnIk5lYYeBQVCmeVyJ3hlKV9Uu5l0cUyx%2BmM0aBhakaHPQNAQTXKFx01p8VdteZOE3%5CnhzBWBOURtCmAEvF5OYiiAhF8J2a3iLd48soKqDirCmTCv2ZdlYTBoSUeh10aUAsg%5CnEsxBu24LUTi4S8sCAwEAAaNjMGEwDgYDVR0PAQH%2FBAQDAgGGMA8GA1UdEwEB%2FwQF%5CnMAMBAf8wHQYDVR0OBBYEFLE%2Bw2kD%2BL9HAdSYJhoIAu9jZCvDMB8GA1UdIwQYMBaA%5CnFLE%2Bw2kD%2BL9HAdSYJhoIAu9jZCvDMA0GCSqGSIb3DQEBBQUAA4IBAQAcGgaX3Nec%5CnnzyIZgYIVyHbIUf4KmeqvxgydkAQV8GK83rZEWWONfqe%2FEW1ntlMMUu4kehDLI6z%5CneM7b41N5cdblIZQB2lWHmiRk9opmzN6cN82oNLFpmyPInngiK3BD41VHMWEZ71jF%5CnhS9OMPagMRYjyOfiZRYzy78aG6A9%2BMpeizGLYAiJLQwGXFK3xPkKmNEVX58Svnw2%5CnYzi9RKR%2F5CYrCsSXaQ3pjOLAEFe4yHYSkVXySGnYvCoCWw9E1CAx2%2FS6cCZdkGCe%5CnvEsXCS%2B0yx5DaMkHJ8HSXPfqIbloEpw8nL%2Be%2FIBcm2PN7EeqJSdnoDfzAIJ9VNep%5Cn%2BOkuE6N36B9K%5Cn-----END%20CERTIFICATE-----%22%2C%0A%20%20%22oid%22%3A%20%222.16.840.1.114412.22.1%22%0A%7D%0A%7D"

Output: a json document containing the Scan ID.

Caching: When rescan is not true, if a scan of the target was done over the last 24 hours, the scan ID is returned. Use rescan=true to force a rescan within 24 hours of the previous scan.

Rate Limits: Each target can only be scanned every 3 minutes with rescan=true.

Retrieve scan results by its ID.

curl https://tls-observatory.services.mozilla.com/api/v1/results?id=12302333

Parameters:

Output: a json document containing the scan results and the ID of the end-entity certificate.

Retrieve a certificate by its ID.

curl https://tls-observatory.services.mozilla.com/api/v1/certificate?id=1

Parameters:

Output: a json document containing the parsed certificate and its raw X509 version encoded with base64.

Publish a certificate.

curl -X POST -F certificate=@example.pem https://tls-observatory.services.mozilla.com/api/v1/certificate

Parameters:

Output: a json document containing the parsed certificate and its raw X509 version encoded with base64.

Caching: Certificates are only stored once. The database uses the SHA256 hash of the DER (binary) certificate to identify duplicates. Posting a certificate already stored in database returns the stored version.

Retrieve the paths from a certificate to one of multiple roots.

curl https://tls-observatory.services.mozilla.com/api/v1/paths?id=1

Parameters:

Output: a json document containing the paths document. Each entry in the path contains the current certificate and an array of parents, if any exist.

Retrieve all the certificates in a given truststore.

curl https://tls-observatory.services.mozilla.com/api/v1/truststore?store=mozilla&format=pem

Parameters:

Output: if format is pem, a series of PEM-format certificates. If format is json, a json array of certificate objects, each with the same format of /api/v1/certificate.

GET /api/v1/issuereecount

Retrieve the count of end-entity certificates that chain to the specified certificate. This is used to evaluate weight of a given issuer in the web pki.

curl https://tls-observatory.services.mozilla.com/api/v1/issuereecount?id=1

Parameters:

Output: a json document containing the certificate itself under issuer and the count of end-entity certs under eecount.

Returns a 200 OK.

curl https://tls-observatory.services.mozilla.com/api/v1/__heartbeat__
I iz alive.

Returns usage statistics in json (default) or text format.

By default, this endpoint returns stale data, refreshed the last time the endpoint was called, so it's possible to not have the latest available statistics. Use the query parameter details=full to get the real-time stats, but be aware that this is expensive and often times out.

curl https://tls-observatory.services.mozilla.com/api/v1/__stats__?format=text&details=full

pending scans: 7

last 24 hours
-------------
- distinct targets: 21873
- certs seen:       16459
- certs added:      7886

hourly scans
------------
2017-02-08T15:00:00Z    5
2017-02-08T14:00:00Z    64
2017-02-08T13:00:00Z    928
2017-02-08T12:00:00Z    1969
2017-02-08T11:00:00Z    1957
2017-02-08T10:00:00Z    1982
2017-02-08T09:00:00Z    2013
2017-02-08T08:00:00Z    2031
2017-02-08T07:00:00Z    2153
2017-02-08T06:00:00Z    1860
2017-02-08T05:00:00Z    1869
2017-02-08T04:00:00Z    1944
2017-02-08T03:00:00Z    1959
2017-02-08T02:00:00Z    907
2017-02-08T01:00:00Z    32
2017-02-08T00:00:00Z    55
2017-02-07T23:00:00Z    41
2017-02-07T22:00:00Z    46
2017-02-07T21:00:00Z    60
2017-02-07T20:00:00Z    76
2017-02-07T19:00:00Z    66
2017-02-07T18:00:00Z    67
2017-02-07T17:00:00Z    56
Find certificates signed by CAs identified by their SHA256 fingerprint 
SELECT certificates.id, certificates.subject, certificates.issuer
FROM certificates INNER JOIN trust ON (certificates.id=trust.cert_id)
WHERE trust.issuer_id in (
    SELECT id FROM certificates
    WHERE sha256_fingerprint IN (
        'E7685634EFACF69ACE939A6B255B7B4FABEF42935B50A265ACB5CB6027E44E70',
        'A4B6B3996FC2F306B3FD8681BD63413D8C5009CC4FA329C2CCF0E2FA1B140305'
    ))
AND certificates.is_ca='false';
List signature algorithms of trusted certs 
SELECT signature_algo, count(*)
FROM certificates INNER JOIN trust ON (certificates.id=trust.cert_id)
WHERE is_ca='false'
AND trust.trusted_mozilla='true'
GROUP BY signature_algo
ORDER BY count(*) DESC;
Show expiration dates of trusted SHA-1 certificates 
SELECT  extract('year' FROM date_trunc('year', not_valid_after)) as expiration_year,
        extract('month' FROM date_trunc('month', not_valid_after)) as expiration_month,
        count(*)
FROM    certificates
    INNER JOIN trust ON (certificates.id=trust.cert_id)
WHERE is_ca='false'
    AND trust.trusted_mozilla='true'
    AND signature_algo='SHA1WithRSA'
GROUP BY date_trunc('year', not_valid_after),
         date_trunc('month', not_valid_after)
ORDER BY date_trunc('year', not_valid_after) ASC,
         date_trunc('month', not_valid_after) ASC;
Count trusted SHA-1 certs seen over the last month on TOP1M sites 
SELECT distinct(certificates.id) as "id", cisco_umbrella_rank, domains, not_valid_before, not_valid_after, last_seen, signature_algo
FROM certificates
    INNER JOIN trust ON (certificates.id=trust.cert_id)
WHERE is_ca='false'
    AND trust.trusted_mozilla='true'
    AND signature_algo='SHA1WithRSA'
    AND cisco_umbrella_rank < 1000000
    AND last_seen > NOW() - INTERVAL '1 month'
    AND not_valid_after > NOW()
ORDER BY cisco_umbrella_rank ASC;
List issuer, subject and SAN of Mozilla|Firefox certs not issued by Digicert 
SELECT certificates.id,
       issuer->'o'->>0 AS Issuer,
       subject->>'cn' AS Subject,
       san AS SubjectAltName
FROM certificates
      INNER JOIN trust ON (trust.cert_id=certificates.id),
     jsonb_array_elements_text(x509_subjectAltName) AS san
WHERE jsonb_typeof(x509_subjectAltName) != 'null'
      AND ( subject#>>'{cn}' ~ '\.(firefox|mozilla)\.'
            OR
            san ~ '\.(firefox|mozilla)\.'
          )
      AND trust.trusted_mozilla='true'
      AND certificates.not_valid_after>now()
      AND cast(issuer#>>'{o}' AS text) NOT LIKE '%DigiCert Inc%'
GROUP BY certificates.id, san
ORDER BY certificates.id ASC;
Find count of targets that support the SEED-SHA ciphersuite 
SELECT COUNT(DISTINCT(target))
FROM scans, jsonb_array_elements(conn_info->'ciphersuite') as ciphersuites
WHERE jsonb_typeof(conn_info) != 'null'
AND ciphersuites->>'cipher'='SEED-SHA';
Find intermediate CA certs whose root is trusted by Mozilla 
SELECT id, subject
FROM certificates
WHERE is_ca=True
  AND subject!=issuer
  AND issuer IN (
      SELECT subject
      FROM certificates
      WHERE in_mozilla_root_store=True
  )
GROUP BY subject, sha256_fingerprint;
Find CA certs treated as EV in Firefox

The list is CA Certs that get EV treatment in Firefox can be found here.

SELECT id, subject
FROM certificates,
     jsonb_array_elements_text(x509_certificatePolicies) AS cpol
WHERE jsonb_typeof(x509_certificatePolicies) != 'null'
  AND cpol IN ('1.2.392.200091.100.721.1','1.2.616.1.113527.2.5.1.1','1.3.159.1.17.1',
               '1.3.6.1.4.1.13177.10.1.3.10','1.3.6.1.4.1.13769.666.666.666.1.500.9.1',
               '1.3.6.1.4.1.14370.1.6','1.3.6.1.4.1.14777.6.1.1','1.3.6.1.4.1.14777.6.1.2',
               '1.3.6.1.4.1.17326.10.14.2.1.2','1.3.6.1.4.1.17326.10.8.12.1.2',
               '1.3.6.1.4.1.22234.2.14.3.11','1.3.6.1.4.1.22234.2.5.2.3.1',
               '1.3.6.1.4.1.22234.3.5.3.1','1.3.6.1.4.1.22234.3.5.3.2','1.3.6.1.4.1.23223.1.1.1',
               '1.3.6.1.4.1.29836.1.10','1.3.6.1.4.1.34697.2.1','1.3.6.1.4.1.34697.2.2',
               '1.3.6.1.4.1.34697.2.3','1.3.6.1.4.1.34697.2.4','1.3.6.1.4.1.36305.2',
               '1.3.6.1.4.1.40869.1.1.22.3','1.3.6.1.4.1.4146.1.1','1.3.6.1.4.1.4788.2.202.1',
               '1.3.6.1.4.1.6334.1.100.1','1.3.6.1.4.1.6449.1.2.1.5.1','1.3.6.1.4.1.782.1.2.1.8.1',
               '1.3.6.1.4.1.7879.13.24.1','1.3.6.1.4.1.8024.0.2.100.1.2','2.16.156.112554.3',
               '2.16.528.1.1003.1.2.7','2.16.578.1.26.1.3.3','2.16.756.1.83.21.0',
               '2.16.756.1.89.1.2.1.1','2.16.756.5.14.7.4.8','2.16.792.3.0.3.1.1.5',
               '2.16.792.3.0.4.1.1.4','2.16.840.1.113733.1.7.23.6','2.16.840.1.113733.1.7.48.1',
               '2.16.840.1.114028.10.1.2','2.16.840.1.114404.1.1.2.4.1','2.16.840.1.114412.2.1',
               '2.16.840.1.114413.1.7.23.3','2.16.840.1.114414.1.7.23.3')
  AND is_ca='true';
Evaluate the quality of TLS configurations of top sites

This query uses the top1m ranking analyzer to retrieve the Mozilla evaluation of top sites.

observatory=> SELECT COUNT(DISTINCT(target)), output->>'level' AS "Mozilla Configuration"
FROM scans
  INNER JOIN analysis ON (scans.id=analysis.scan_id)
WHERE has_tls=true
  AND target IN ( SELECT target
                  FROM scans
                  INNER JOIN analysis ON (scans.id=analysis.scan_id)
                  WHERE worker_name='top1m'
                    AND CAST(output->'target'->>'rank' AS INTEGER) < 10000
                    AND timestamp > NOW() - INTERVAL '1 month')
  AND worker_name='mozillaEvaluationWorker'
  AND timestamp > NOW() - INTERVAL '1 month'
GROUP BY has_tls, output->>'level'
ORDER BY COUNT(DISTINCT(target)) DESC;

 count | Mozilla Configuration
-------+-----------------------
  3689 | intermediate
  1906 | non compliant
  1570 | bad
    15 | old
(4 rows)
Count Top 1M sites that support RC4 
SELECT COUNT(DISTINCT(target))
FROM scans,
     jsonb_array_elements(conn_info->'ciphersuite') as ciphersuites
WHERE jsonb_typeof(conn_info) = 'object'
  AND jsonb_typeof(conn_info->'ciphersuite') = 'array'
  AND ciphersuites->>'cipher' LIKE 'RC4-%'
  AND target IN ( SELECT target
                  FROM scans
                       INNER JOIN analysis ON (scans.id=analysis.scan_id)
                  WHERE worker_name='top1m'
                    AND CAST(output->'target'->>'rank' AS INTEGER) < 1000000
                    AND timestamp > NOW() - INTERVAL '1 month')
  AND timestamp > NOW() - INTERVAL '1 month';
Count Top 1M sites that support TLSv1.2 
SELECT ciphersuites->'protocols' @> '["TLSv1.2"]'::jsonb AS "Support TLS 1.2", COUNT(DISTINCT(target))
FROM scans,
     jsonb_array_elements(conn_info->'ciphersuite') as ciphersuites
WHERE jsonb_typeof(conn_info) = 'object'
  AND jsonb_typeof(conn_info->'ciphersuite') = 'array'
  AND target IN ( SELECT target
                  FROM scans
                       INNER JOIN analysis ON (scans.id=analysis.scan_id)
                  WHERE worker_name='top1m'
                    AND CAST(output->'target'->>'rank' AS INTEGER) < 1000000
                    AND timestamp > NOW() - INTERVAL '1 month')
  AND timestamp > NOW() - INTERVAL '1 month'
GROUP BY ciphersuites->'protocols' @> '["TLSv1.2"]'::jsonb;
Count end-entity certificates by issuer organizations 
SELECT COUNT(*), issuer#>'{o}'->>0
FROM certificates
  INNER JOIN trust ON (certificates.id=trust.cert_id)
WHERE certificates.is_ca = false
  AND trust.trusted_mozilla=true
  AND trust.is_current = true
GROUP BY issuer#>'{o}'->>0
ORDER BY count(*) DESC;
Count sites in the top 10k that are impacted by the Symantec distrust in Firefox 60

note: in Firefox 63, the not_valid_before condition will be removed

SELECT COUNT(DISTINCT(target))
FROM scans
  INNER JOIN analysis ON (scans.id=analysis.scan_id)
  INNER JOIN certificates ON (scans.cert_id=certificates.id)
WHERE has_tls=true
  AND target IN ( SELECT target
                  FROM scans
                  INNER JOIN analysis ON (scans.id=analysis.scan_id)
                  WHERE worker_name='top1m'
                    AND CAST(output->'target'->>'rank' AS INTEGER) < 10000
                    AND timestamp > NOW() - INTERVAL '1 week')
  AND worker_name='symantecDistrust'
  AND timestamp > NOW() - INTERVAL '1 week'
  AND not_valid_before < '2016-06-01'
GROUP BY has_tls, output->>'isDistrusted'
ORDER BY COUNT(DISTINCT(target)) DESC;

We're always happy to help new contributors. You can find us in #observatory on irc.mozilla.org (Mozilla Wiki).

We currently vendor dependencies in vendor/.

Using a golang version with go mod,run make vendor update vendored dependencies.

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