Negotiated cipher per proto (matching cipher in list missing). No further cipher order check has been done as order is determined by the client

Kaushal Shriyan kaushalshriyan at gmail.com
Wed Mar 11 08:21:35 UTC 2020


On Tue, Mar 10, 2020 at 9:56 PM Kaushal Shriyan <kaushalshriyan at gmail.com>
wrote:

> Hi,
>
> I have run the below tests
>
> ./testssl.sh gsmasslciphers.digitalapicraft.com
>> ###########################################################
>>     testssl.sh       3.1dev from https://testssl.sh/dev/
>>     (e0c83b2 2020-02-24 14:21:28 -- )
>>       This program is free software. Distribution and
>>              modification under GPLv2 permitted.
>>       USAGE w/o ANY WARRANTY. USE IT AT YOUR OWN RISK!
>>        Please file bugs @ https://testssl.sh/bugs/
>> ###########################################################
>>  Using "OpenSSL 1.0.2-chacha (1.0.2k-dev)" [~183 ciphers]
>>  on Kaushals-MacBook-Pro:./bin/openssl.Darwin.x86_64
>>  (built: "Feb 22 09:55:43 2019", platform: "darwin64-x86_64-cc")
>>
>>  Start 2020-03-10 21:50:25        -->> 13.234.216.57:443 (
>> gsmasslciphers.digitalapicraft.com) <<--
>>  rDNS (13.234.216.57):   --
>>  Service detected:       HTTP
>>
>>  Testing protocols via sockets except NPN+ALPN
>>  SSLv2      not offered (OK)
>>  SSLv3      not offered (OK)
>>  TLS 1      not offered
>>  TLS 1.1    not offered
>>  TLS 1.2    offered (OK)
>>  TLS 1.3    not offered and downgraded to a weaker protocol
>>  NPN/SPDY   h2, http/1.1 (advertised)
>>  ALPN/HTTP2 h2, 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
>>  Obsolete: SEED + 128+256 Bit CBC cipher       not 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-AES128-GCM-SHA256
>>  Elliptic curves offered:     secp256k1 prime256v1 secp384r1 secp521r1
>>
>>  Testing server preferences
>>  Has server cipher order?     no (NOT ok)
>>  Negotiated protocol          TLSv1.2
>>  Negotiated cipher            ECDHE-RSA-AES128-GCM-SHA256, 521 bit ECDH
>> (P-521) -- inconclusive test, matching cipher in list missing, better see
>> below
>>  Negotiated cipher per proto  (matching cipher in list missing)
>>      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)    "server name/#0" "renegotiation
>> info/#65281" "EC point formats/#11" "session ticket/#35" "heartbeat/#15"
>> "next protocol/#13172" "application layer protocol negotiation/#16"
>>  Session Ticket RFC 5077 hint 86400 seconds, session tickets keys seems
>> to be rotated < daily
>>  SSL Session ID support       yes
>>  Session Resumption           Tickets: yes, ID: yes
>>  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 Server Authentication, TLS Web
>> Client Authentication
>>  Serial / Fingerprints        03C871BF68E569B4330E4AFCFA7752AAB5D7 / SHA1
>> 8874D965CB96F4A4B8B4CCAE149B6F1999399BF8
>>                               SHA256
>> BB56659442E2ED18778F7BB210823F3A81DA88F3AF79D0EE2104CE82DBB03C65
>>  Common Name (CN)             gsmasslciphers.digitalapicraft.com
>>  subjectAltName (SAN)         gsmasslciphers.digitalapicraft.com
>>  Issuer                       Let's Encrypt Authority X3 (Let's Encrypt
>> from US)
>>  Trust (hostname)             Ok via SAN (same w/o SNI)
>>  Chain of trust               Ok
>>  EV cert (experimental)       no
>>  ETS/"eTLS", visibility info  not present
>>  Certificate Validity (UTC)   89 >= 30 days (2020-03-10 09:40 -->
>> 2020-06-08 09:40)
>>  # of certificates provided   2
>>  Certificate Revocation List  --
>>  OCSP URI                     http://ocsp.int-x3.letsencrypt.org
>>  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             200 OK
>>  HTTP clock skew              0 sec from localtime
>>  Strict Transport Security    730 days=63072000 s, just this domain
>>  Public Key Pinning           --
>>  Server banner                nginx/1.16.1
>>  Application banner           --
>>  Cookie(s)                    (none issued at "/")
>>  Security headers             --
>>  Reverse Proxy banner         --
>>
>>  Testing vulnerabilities
>>  Heartbleed (CVE-2014-0160)                not vulnerable (OK), timed out
>>  CCS (CVE-2014-0224)                       not vulnerable (OK)
>>  Ticketbleed (CVE-2016-9244), experiment.  not vulnerable (OK)
>>  ROBOT                                     Server does not support any
>> cipher suites that use RSA key transport
>>  Secure Renegotiation (RFC 5746)           supported (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), no SSLv3
>> support
>>  TLS_FALLBACK_SCSV (RFC 7507)              No fallback possible (OK), no
>> protocol below TLS 1.2 offered
>>  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=BB56659442E2ED18778F7BB210823F3A81DA88F3AF79D0EE2104CE82DBB03C65
>> 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)                     not vulnerable (OK), no SSL3
>> or TLS1
>>  LUCKY13 (CVE-2013-0169), experimental     not vulnerable (OK)
>>  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 521   AESGCM      256
>>  TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
>>  xc02f   ECDHE-RSA-AES128-GCM-SHA256       ECDH 521   AESGCM      128
>>  TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
>>
>>  Running client simulations (HTTP) via sockets
>>  Android 4.4.2                TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384, 521
>> bit ECDH (P-521)
>>  Android 5.0.0                TLSv1.2 ECDHE-RSA-AES128-GCM-SHA256, 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-AES128-GCM-SHA256, 256
>> bit ECDH (P-256)
>>  Android 8.1 (native)         TLSv1.2 ECDHE-RSA-AES128-GCM-SHA256, 256
>> bit ECDH (P-256)
>>  Android 9.0 (native)         TLSv1.2 ECDHE-RSA-AES128-GCM-SHA256, 256
>> bit ECDH (P-256)
>>  Android 10.0 (native)        TLSv1.2 ECDHE-RSA-AES128-GCM-SHA256, 256
>> bit ECDH (P-256)
>>  Chrome 74 (Win 10)           TLSv1.2 ECDHE-RSA-AES128-GCM-SHA256, 256
>> bit ECDH (P-256)
>>  Chrome 79 (Win 10)           TLSv1.2 ECDHE-RSA-AES128-GCM-SHA256, 256
>> bit ECDH (P-256)
>>  Firefox 66 (Win 8.1/10)      TLSv1.2 ECDHE-RSA-AES128-GCM-SHA256, 256
>> bit ECDH (P-256)
>>  Firefox 71 (Win 10)          TLSv1.2 ECDHE-RSA-AES128-GCM-SHA256, 256
>> bit ECDH (P-256)
>>  IE 6 XP                      No connection
>>  IE 8 Win 7                   No connection
>>  IE 8 XP                      No connection
>>  IE 11 Win 7                  No connection
>>  IE 11 Win 8.1                No connection
>>  IE 11 Win Phone 8.1          No connection
>>  IE 11 Win 10                 TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384, 256
>> bit ECDH (P-256)
>>  Edge 15 Win 10               TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384, 256
>> bit ECDH (P-256)
>>  Edge 17 (Win 10)             TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384, 256
>> bit ECDH (P-256)
>>  Opera 66 (Win 10)            TLSv1.2 ECDHE-RSA-AES128-GCM-SHA256, 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)
>>  Safari 12.1 (iOS 12.2)       TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384, 256
>> bit ECDH (P-256)
>>  Safari 13.0 (macOS 10.14.6)  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)
>>  Java 6u45                    No connection
>>  Java 7u25                    No connection
>>  Java 8u161                   TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384, 256
>> bit ECDH (P-256)
>>  Java 11.0.2 (OpenJDK)        TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384, 256
>> bit ECDH (P-256)
>>  Java 12.0.1 (OpenJDK)        TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384, 256
>> bit ECDH (P-256)
>>  OpenSSL 1.0.2e               TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384, 256
>> bit ECDH (P-256)
>>  OpenSSL 1.1.0l (Debian)      TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384, 256
>> bit ECDH (P-256)
>>  OpenSSL 1.1.1d (Debian)      TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384, 256
>> bit ECDH (P-256)
>>  Thunderbird (68.3)           TLSv1.2 ECDHE-RSA-AES128-GCM-SHA256, 256
>> bit ECDH (P-256)
>>  Done 2020-03-10 21:52:13 [0130s] -->> 13.234.216.57:443 (
>> gsmasslciphers.digitalapicraft.com) <<--
>
>
>
> I am not sure about the below explanation as seen in the above output.
>
> Testing server preferences
>>  Has server cipher order?     no (NOT ok)
>>  Negotiated protocol          TLSv1.2
>>  Negotiated cipher            ECDHE-RSA-AES128-GCM-SHA256, 521 bit ECDH
>> (P-521) -- inconclusive test, matching cipher in list missing, better see
>> below
>>  Negotiated cipher per proto  (matching cipher in list missing)
>>      ECDHE-RSA-AES256-GCM-SHA384:   TLSv1.2
>>  No further cipher order check has been done as order is determined by
>> the client
>
>
> I will appreciate if someone can help me understand it. Does it mean there
> is some issue? Thanks in advance and I look forward to hearing from you.
>
> Best Regards,
>
> Kaushal
>
>

Hi,

Checking in again if someone can pitch in for my earlier post to this
mailing list. Thanks in advance and I look forward to hearing from you.

Best Regards,

Kaushal
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