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update weak ciphers/tests etc, closes #931

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- adds the new tests including the non-JS JA3
- Stats: the code numbers are from https://dxr.mozilla.org/mozilla-central/source/security/manager/ssl/nsNSSCallbacks.cpp#903
- Telemetry from SSL_CIPHER_SUITE_FULL: 
   - go to https://telemetry.mozilla.org/
   - click Measurement Dashboard, etc
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Thorin-Oakenpants 2020-06-27 11:32:30 +00:00 committed by GitHub
parent 4be0a80720
commit 8239d41475
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1 changed files with 18 additions and 10 deletions
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user.js
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@ -637,6 +637,8 @@ user_pref("browser.shell.shortcutFavicons", false);
/*** [SECTION 1200]: HTTPS (SSL/TLS / OCSP / CERTS / HPKP / CIPHERS)
Your cipher and other settings can be used in server side fingerprinting
[TEST] https://www.ssllabs.com/ssltest/viewMyClient.html
[TEST] https://browserleaks.com/ssl
[TEST] https://ja3er.com/
[1] https://www.securityartwork.es/2017/02/02/tls-client-fingerprinting-with-bro/
***/
user_pref("_user.js.parrot", "1200 syntax error: the parrot's a stiff!");
@ -750,16 +752,22 @@ user_pref("security.mixed_content.block_object_subrequest", true);
* [2] https://en.wikipedia.org/wiki/Meet-in-the-middle_attack
* [3] https://www-archive.mozilla.org/projects/security/pki/nss/ssl/fips-ssl-ciphersuites.html ***/
// user_pref("security.ssl3.rsa_des_ede3_sha", false);
/* 1262: disable 128 bits ***/
// user_pref("security.ssl3.ecdhe_ecdsa_aes_128_sha", false);
// user_pref("security.ssl3.ecdhe_rsa_aes_128_sha", false);
/* 1263: disable DHE (Diffie-Hellman Key Exchange)
* [1] https://www.eff.org/deeplinks/2015/10/how-to-protect-yourself-from-nsa-attacks-1024-bit-DH ***/
// user_pref("security.ssl3.dhe_rsa_aes_128_sha", false); // [DEFAULT: false FF78+]
// user_pref("security.ssl3.dhe_rsa_aes_256_sha", false); // [DEFAULT: false FF78+]
/* 1264: disable the remaining non-modern cipher suites as of FF52 ***/
// user_pref("security.ssl3.rsa_aes_128_sha", false);
// user_pref("security.ssl3.rsa_aes_256_sha", false);
/* 1262: disable weak ciphers
* ALL: use SHA1 and CBC which should be considered broken [1] [2]
128: https://en.wikipedia.org/wiki/Key_size
* NOPFS: https://en.wikipedia.org/wiki/Forward_secrecy
* DHE: Diffie-Hellman key exchange w/o Elliptic-curves
* [STATS] Firefox telemetry (June 2020)
* [1]: https://en.wikipedia.org/wiki/SHA-1#Attacks
* [2]: https://en.wikipedia.org/wiki/POODLE#POODLE_attack_against_TLS ***/
// user_pref("security.ssl3.ecdhe_rsa_aes_128_sha", false); // 3: 0.33%
// user_pref("security.ssl3.ecdhe_ecdsa_aes_128_sha", false); // 4: 0.01%
// user_pref("security.ssl3.ecdhe_rsa_aes_256_sha", false); // 5: 0.91%
// user_pref("security.ssl3.ecdhe_ecdsa_aes_256_sha", false); // 6: 0.00%
// user_pref("security.ssl3.dhe_rsa_aes_128_sha", false); // 21: 0.17% DHE [DEFAULT: false FF78+]
// user_pref("security.ssl3.dhe_rsa_aes_256_sha", false); // 23: 0.30% DHE [DEFAULT: false FF78+]
// user_pref("security.ssl3.rsa_aes_128_sha", false); // 61: 1.16% NOPFS
// user_pref("security.ssl3.rsa_aes_256_sha", false); // 63: 0.83% NOPFS
/** UI (User Interface) ***/
/* 1270: display warning on the padlock for "broken security" (if 1201 is false)