We just tested the SSL certificate of our s3 and nothing really stands out.
Is there any way to increase the verbosity level of the client library?
Testing protocols via sockets except NPN+ALPN
SSLv2 not offered (OK)
SSLv3 not offered (OK)
TLS 1 offered
TLS 1.1 offered
TLS 1.2 offered (OK)
TLS 1.3 not offered
NPN/SPDY http/1.1 (advertised)
ALPN/HTTP2 http/1.1 (offered)
Testing cipher categories
NULL ciphers (no encryption) not offered (OK)
Anonymous NULL Ciphers (no authentication) not offered (OK)
Export ciphers (w/o ADH+NULL) not offered (OK)
LOW: 64 Bit + DES, RC[2,4] (w/o export) not offered (OK)
Triple DES Ciphers / IDEA not offered (OK)
Average: SEED + 128+256 Bit CBC ciphers offered
Strong encryption (AEAD ciphers) offered (OK)
Testing robust (perfect) forward secrecy, (P)FS -- omitting Null Authentication/Encryption, 3DES, RC4
PFS is offered (OK) ECDHE-RSA-AES256-GCM-SHA384
ECDHE-RSA-AES256-SHA384 ECDHE-RSA-AES256-SHA
ECDHE-RSA-CHACHA20-POLY1305
ECDHE-RSA-CAMELLIA256-SHA384
ECDHE-ARIA256-GCM-SHA384
ECDHE-RSA-AES128-GCM-SHA256
ECDHE-RSA-AES128-SHA256 ECDHE-RSA-AES128-SHA
ECDHE-RSA-CAMELLIA128-SHA256
ECDHE-ARIA128-GCM-SHA256
Elliptic curves offered: prime256v1 secp384r1 secp521r1 X25519 X448
Testing server preferences
Has server cipher order? nope (NOT ok)
Negotiated protocol TLSv1.2
Negotiated cipher AES128-GCM-SHA256 -- inconclusive test, matching cipher in list missing, better see below
Negotiated cipher per proto (matching cipher in list missing)
ECDHE-RSA-AES256-SHA: TLSv1, TLSv1.1
ECDHE-RSA-AES256-GCM-SHA384: TLSv1.2
No further cipher order check has been done as order is determined by the client
Testing server defaults (Server Hello)
TLS extensions (standard) "renegotiation info/#65281"
"EC point formats/#11" "session ticket/#35"
"next protocol/#13172" "max fragment length/#1"
"application layer protocol negotiation/#16"
"encrypt-then-mac/#22"
"extended master secret/#23"
Session Ticket RFC 5077 hint 300 seconds, session tickets keys seems to be rotated < daily
SSL Session ID support yes
Session Resumption Tickets no, ID: no
TLS clock skew Random values, no fingerprinting possible
Signature Algorithm SHA256 with RSA
Server key size RSA 2048 bits
Server key usage Digital Signature, Key Encipherment
Server extended key usage TLS Web Client Authentication, TLS Web Server Authentication
Serial / Fingerprints 115C7B3E0D604C7C48C6B1EC968C21955BB78242 / SHA1 39699B464489253565A2CFE7E037E497B3CB3380
SHA256 87C308F50059D200EFAE86DCBA32BC3F3EB2154D397F3606BACCABE27F6A7594
Common Name (CN) *.epfl.ch
subjectAltName (SAN) *.epfl.ch epfl.ch
Issuer QuoVadis Global SSL ICA G3 (QuoVadis Limited from BM)
Trust (hostname) Ok via SAN wildcard and CN wildcard (same w/o SNI)
Chain of trust Ok
EV cert (experimental) no
"eTLS" (visibility info) not present
Certificate Validity (UTC) 656 >= 60 days (2020-01-15 09:03 --> 2022-01-15 09:13)
# of certificates provided 2
Certificate Revocation List http://crl.quovadisglobal.com/qvsslg3.crl, not revoked
OCSP URI http://ocsp.quovadisglobal.com, not revoked
OCSP stapling not offered
OCSP must staple extension --
DNS CAA RR (experimental) not offered
Certificate Transparency yes (certificate extension)
Testing HTTP header response @ "/"
HTTP Status Code 403 Forbidden
HTTP clock skew +3 sec from localtime
Strict Transport Security not offered
Public Key Pinning --
Server banner nginx
Application banner --
Cookie(s) (none issued at "/") -- maybe better try target URL of 30x
Security headers --
Reverse Proxy banner --
/
Testing vulnerabilities
Heartbleed (CVE-2014-0160) not vulnerable (OK), no heartbeat extension
CCS (CVE-2014-0224) not vulnerable (OK)
Ticketbleed (CVE-2016-9244), experiment. not vulnerable (OK)
ROBOT not vulnerable (OK)
Secure Renegotiation (CVE-2009-3555) not vulnerable (OK)
Secure Client-Initiated Renegotiation not vulnerable (OK)
CRIME, TLS (CVE-2012-4929) not vulnerable (OK)
BREACH (CVE-2013-3587) no HTTP compression (OK) - only supplied "/" tested
POODLE, SSL (CVE-2014-3566) not vulnerable (OK)
TLS_FALLBACK_SCSV (RFC 7507) Downgrade attack prevention supported (OK)
SWEET32 (CVE-2016-2183, CVE-2016-6329) not vulnerable (OK)
FREAK (CVE-2015-0204) not vulnerable (OK)
DROWN (CVE-2016-0800, CVE-2016-0703) not vulnerable on this host and port (OK)
make sure you don't use this certificate elsewhere with SSLv2 enabled services
https://censys.io/ipv4?q=87C308F50059D200EFAE86DCBA32BC3F3EB2154D397F3606BACCABE27F6A7594 could help you to find out
LOGJAM (CVE-2015-4000), experimental not vulnerable (OK): no DH EXPORT ciphers, no DH key detected with <= TLS 1.2
BEAST (CVE-2011-3389) TLS1: ECDHE-RSA-AES256-SHA
AES256-SHA CAMELLIA256-SHA
ECDHE-RSA-AES128-SHA
AES128-SHA CAMELLIA128-SHA
VULNERABLE -- but also supports higher protocols TLSv1.1 TLSv1.2 (likely mitigated)
LUCKY13 (CVE-2013-0169), experimental potentially VULNERABLE, uses cipher block chaining (CBC) ciphers with TLS. Check patches
RC4 (CVE-2013-2566, CVE-2015-2808) no RC4 ciphers detected (OK)
Testing 370 ciphers via OpenSSL plus sockets against the server, ordered by encryption strength
Hexcode Cipher Suite Name (OpenSSL) KeyExch. Encryption Bits Cipher Suite Name (IANA/RFC)
-----------------------------------------------------------------------------------------------------------------------------
xc030 ECDHE-RSA-AES256-GCM-SHA384 ECDH 253 AESGCM 256 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
xc028 ECDHE-RSA-AES256-SHA384 ECDH 253 AES 256 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
xc014 ECDHE-RSA-AES256-SHA ECDH 253 AES 256 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
xcca8 ECDHE-RSA-CHACHA20-POLY1305 ECDH 253 ChaCha20 256 TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
xc077 ECDHE-RSA-CAMELLIA256-SHA384 ECDH 253 Camellia 256 TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384
x9d AES256-GCM-SHA384 RSA AESGCM 256 TLS_RSA_WITH_AES_256_GCM_SHA384
xc0a1 AES256-CCM8 RSA AESCCM8 256 TLS_RSA_WITH_AES_256_CCM_8
xc09d AES256-CCM RSA AESCCM 256 TLS_RSA_WITH_AES_256_CCM
x3d AES256-SHA256 RSA AES 256 TLS_RSA_WITH_AES_256_CBC_SHA256
x35 AES256-SHA RSA AES 256 TLS_RSA_WITH_AES_256_CBC_SHA
xc0 CAMELLIA256-SHA256 RSA Camellia 256 TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256
x84 CAMELLIA256-SHA RSA Camellia 256 TLS_RSA_WITH_CAMELLIA_256_CBC_SHA
xc051 ARIA256-GCM-SHA384 RSA ARIAGCM 256 TLS_RSA_WITH_ARIA_256_GCM_SHA384
xc061 ECDHE-ARIA256-GCM-SHA384 ECDH 253 ARIAGCM 256 TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384
xc02f ECDHE-RSA-AES128-GCM-SHA256 ECDH 253 AESGCM 128 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
xc027 ECDHE-RSA-AES128-SHA256 ECDH 253 AES 128 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
xc013 ECDHE-RSA-AES128-SHA ECDH 253 AES 128 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
xc0a0 AES128-CCM8 RSA AESCCM8 128 TLS_RSA_WITH_AES_128_CCM_8
xc09c AES128-CCM RSA AESCCM 128 TLS_RSA_WITH_AES_128_CCM
xc076 ECDHE-RSA-CAMELLIA128-SHA256 ECDH 253 Camellia 128 TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
x9c AES128-GCM-SHA256 RSA AESGCM 128 TLS_RSA_WITH_AES_128_GCM_SHA256
x3c AES128-SHA256 RSA AES 128 TLS_RSA_WITH_AES_128_CBC_SHA256
x2f AES128-SHA RSA AES 128 TLS_RSA_WITH_AES_128_CBC_SHA
xba CAMELLIA128-SHA256 RSA Camellia 128 TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256
x41 CAMELLIA128-SHA RSA Camellia 128 TLS_RSA_WITH_CAMELLIA_128_CBC_SHA
xc050 ARIA128-GCM-SHA256 RSA ARIAGCM 128 TLS_RSA_WITH_ARIA_128_GCM_SHA256
xc060 ECDHE-ARIA128-GCM-SHA256 ECDH 253 ARIAGCM 128 TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256
Running client simulations (HTTP) via sockets
Android 4.2.2 TLSv1.0 ECDHE-RSA-AES256-SHA, 521 bit ECDH (P-521)
Android 4.4.2 TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384, 521 bit ECDH (P-521)
Android 5.0.0 TLSv1.2 ECDHE-RSA-AES256-SHA, 521 bit ECDH (P-521)
Android 6.0 TLSv1.2 ECDHE-RSA-AES128-GCM-SHA256, 256 bit ECDH (P-256)
Android 7.0 TLSv1.2 ECDHE-RSA-CHACHA20-POLY1305, 253 bit ECDH (X25519)
Chrome 65 Win 7 TLSv1.2 ECDHE-RSA-AES128-GCM-SHA256, 253 bit ECDH (X25519)
Chrome 70 Win 10 TLSv1.2 ECDHE-RSA-AES128-GCM-SHA256, 253 bit ECDH (X25519)
Firefox 59 Win 7 TLSv1.2 ECDHE-RSA-AES128-GCM-SHA256, 253 bit ECDH (X25519)
Firefox 62 Win 7 TLSv1.2 ECDHE-RSA-AES128-GCM-SHA256, 253 bit ECDH (X25519)
IE 6 XP No connection
IE 7 Vista TLSv1.0 AES128-SHA, No FS
IE 8 Win 7 TLSv1.0 AES128-SHA, No FS
IE 8 XP No connection
IE 11 Win 7 TLSv1.2 ECDHE-RSA-AES256-SHA384, 256 bit ECDH (P-256)
IE 11 Win 8.1 TLSv1.2 ECDHE-RSA-AES256-SHA384, 256 bit ECDH (P-256)
IE 11 Win Phone 8.1 TLSv1.2 AES128-SHA256, No FS
IE 11 Win 10 TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384, 256 bit ECDH (P-256)
Edge 13 Win 10 TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384, 256 bit ECDH (P-256)
Edge 13 Win Phone 10 TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384, 256 bit ECDH (P-256)
Edge 15 Win 10 TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384, 253 bit ECDH (X25519)
Opera 17 Win 7 TLSv1.2 ECDHE-RSA-AES256-SHA, 256 bit ECDH (P-256)
Safari 9 iOS 9 TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384, 256 bit ECDH (P-256)
Safari 9 OS X 10.11 TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384, 256 bit ECDH (P-256)
Safari 10 OS X 10.12 TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384, 256 bit ECDH (P-256)
Apple ATS 9 iOS 9 TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384, 256 bit ECDH (P-256)
Tor 17.0.9 Win 7 TLSv1.0 ECDHE-RSA-AES256-SHA, 256 bit ECDH (P-256)
Java 6u45 TLSv1.0 AES128-SHA, No FS
Java 7u25 TLSv1.0 ECDHE-RSA-AES128-SHA, 256 bit ECDH (P-256)
Java 8u161 TLSv1.2 ECDHE-RSA-AES256-SHA384, 256 bit ECDH (P-256)
Java 9.0.4 TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384, 256 bit ECDH (P-256)
OpenSSL 1.0.1l TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384, 521 bit ECDH (P-521)
OpenSSL 1.0.2e TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384, 256 bit ECDH (P-256)