TLS scan results for June 2015

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Just continuation of established trends, most website administrators 
vulnerable to Logjam haven't taken any action to fix it on their side.

As always, detailed analysis on my blog:
https://securitypitfalls.wordpress.com/2015/07/14/june-2015-scan-results/

SSL/TLS survey of 496355 websites from Alexa's top 1 million
Stats only from connections that did provide valid certificates
(or anonymous DH from servers that do also have valid certificate installed)


Supported Ciphers         Count     Percent
-------------------------+---------+-------
3DES                      414245    83.4574
3DES Only                 840       0.1692
AES                       485964    97.9065
AES Only                  17816     3.5894
AES-CBC                   485837    97.881
AES-CBC Only              9490      1.9119
AES-GCM                   331682    66.8235
AES-GCM Only              32        0.0064
CAMELLIA                  216922    43.703
CAMELLIA Only             4         0.0008
CHACHA20                  58723     11.8308
CHACHA20 Only             22        0.0044
Insecure                  75670     15.2451
RC4                       263495    53.086
RC4 Only                  1710      0.3445
RC4 Preferred             33485     6.7462
RC4 forced in TLS1.1+     18129     3.6524
x:FF 29 RC4 Only          2047      0.4124
x:FF 29 RC4 Preferred     37569     7.569
x:FF 29 incompatible      124       0.025
x:FF 35 RC4 Only          2377      0.4789
x:FF 35 RC4 Preferred     37715     7.5984
x:FF 35 incompatible      128       0.0258
y:DHE-RSA-SEED-SHA        101229    20.3945
y:IDEA-CBC-SHA            85830     17.2921
y:SEED-SHA                103066    20.7646
z:ADH-AES128-GCM-SHA256   311       0.0627
z:ADH-AES128-SHA          1107      0.223
z:ADH-AES128-SHA256       213       0.0429
z:ADH-AES256-GCM-SHA384   318       0.0641
z:ADH-AES256-SHA          1115      0.2246
z:ADH-AES256-SHA256       215       0.0433
z:ADH-CAMELLIA128-SHA     669       0.1348
z:ADH-CAMELLIA256-SHA     677       0.1364
z:ADH-DES-CBC-SHA         349       0.0703
z:ADH-DES-CBC3-SHA        1128      0.2273
z:ADH-RC4-MD5             1007      0.2029
z:ADH-SEED-SHA            605       0.1219
z:AECDH-AES128-SHA        17615     3.5489
z:AECDH-AES256-SHA        17629     3.5517
z:AECDH-DES-CBC3-SHA      17568     3.5394
z:AECDH-NULL-SHA          41        0.0083
z:AECDH-RC4-SHA           16900     3.4048
z:DES-CBC-MD5             14286     2.8782
z:DES-CBC-SHA             40810     8.2219
z:DES-CBC3-MD5            28088     5.6589
z:ECDHE-RSA-NULL-SHA      53        0.0107
z:EDH-RSA-DES-CBC-SHA     34934     7.0381
z:EXP-ADH-DES-CBC-SHA     252       0.0508
z:EXP-ADH-RC4-MD5         252       0.0508
z:EXP-DES-CBC-SHA         19650     3.9589
z:EXP-EDH-RSA-DES-CBC-SHA 16259     3.2757
z:EXP-RC2-CBC-MD5         23866     4.8083
z:EXP-RC4-MD5             25158     5.0685
z:EXP1024-DES-CBC-SHA     6288      1.2668
z:EXP1024-RC4-SHA         6374      1.2842
z:IDEA-CBC-MD5            2558      0.5154
z:NULL-MD5                259       0.0522
z:NULL-SHA                261       0.0526
z:NULL-SHA256             20        0.004
z:RC2-CBC-MD5             14614     2.9443
z:RC4-64-MD5              1161      0.2339

Cipher ordering           Count     Percent
-------------------------+---------+-------
Client side               132994    26.7941
Server side               363361    73.2059

Supported Handshakes      Count     Percent
-------------------------+---------+-------
ADH                       1238      0.2494
AECDH                     17668     3.5595
DHE                       280798    56.572
ECDH                      1         0.0002
ECDHE                     358229    72.1719
ECDHE and DHE             196228    39.5338
RSA                       455866    91.8427

Supported PFS             Count     Percent  PFS Percent
-------------------------+---------+--------+-----------
DH,1024bits               210208    42.3503  74.8609
DH,1536bits               2         0.0004   0.0007
DH,2048bits               62891     12.6706  22.3972
DH,2236bits               3         0.0006   0.0011
DH,3072bits               2689      0.5417   0.9576
DH,4096bits               4249      0.856    1.5132
DH,512bits                73        0.0147   0.026
DH,6144bits               1         0.0002   0.0004
DH,768bits                729       0.1469   0.2596
ECDH,B-163,163bits        1         0.0002   0.0003
ECDH,B-571,570bits        1330      0.268    0.3713
ECDH,K-571,570bits        1         0.0002   0.0003
ECDH,P-192,192bits        2         0.0004   0.0006
ECDH,P-224,224bits        67        0.0135   0.0187
ECDH,P-256,256bits        349478    70.4089  97.5571
ECDH,P-384,384bits        3644      0.7342   1.0172
ECDH,P-521,521bits        6198      1.2487   1.7302
Prefer DH,1024bits        81235     16.3663  28.93
Prefer DH,1536bits        1         0.0002   0.0004
Prefer DH,2048bits        3908      0.7873   1.3917
Prefer DH,2236bits        1         0.0002   0.0004
Prefer DH,3072bits        27        0.0054   0.0096
Prefer DH,4096bits        120       0.0242   0.0427
Prefer DH,512bits         2         0.0004   0.0007
Prefer DH,768bits         347       0.0699   0.1236
Prefer ECDH,B-163,163bits 1         0.0002   0.0003
Prefer ECDH,B-571,570bits 1124      0.2265   0.3138
Prefer ECDH,K-571,570bits 1         0.0002   0.0003
Prefer ECDH,P-224,224bits 40        0.0081   0.0112
Prefer ECDH,P-256,256bits 293410    59.1129  81.9057
Prefer ECDH,P-384,384bits 2068      0.4166   0.5773
Prefer ECDH,P-521,521bits 5823      1.1732   1.6255
Prefer PFS                388108    78.1916  0
Support PFS               442799    89.2101  0

Supported ECC curves      Count     Percent 
-------------------------+---------+--------
brainpoolP256r1           364       0.0733   
brainpoolP384r1           364       0.0733   
brainpoolP512r1           364       0.0733   
prime192v1                1331      0.2682   
prime256v1                357188    71.9622  
prime256v1 Only           311537    62.765   
secp160k1                 1298      0.2615   
secp160r1                 1303      0.2625   
secp160r2                 1298      0.2615   
secp192k1                 1315      0.2649   
secp224k1                 1370      0.276    
secp224r1                 2711      0.5462   
secp224r1 Only            2         0.0004   
secp256k1                 1587      0.3197   
secp384r1                 45900     9.2474   
secp384r1 Only            249       0.0502   
secp521r1                 13918     2.804    
secp521r1 Only            115       0.0232   
sect163k1                 1300      0.2619   
sect163k1 Only            3         0.0006   
sect163r1                 1297      0.2613   
sect163r2                 1298      0.2615   
sect163r2 Only            1         0.0002   
sect193r1                 1297      0.2613   
sect193r2                 1297      0.2613   
sect233k1                 1362      0.2744   
sect233r1                 1361      0.2742   
sect239k1                 1360      0.274    
sect283k1                 1566      0.3155   
sect283r1                 1566      0.3155   
sect409k1                 1566      0.3155   
sect409r1                 1565      0.3153   
sect571k1                 1575      0.3173   
sect571r1                 1574      0.3171   

Unsupported curve fallback     Count     Percent 
------------------------------+---------+--------
False                          80483     16.2148  
True                           231859    46.7123  
order-specific                 16        0.0032   
unknown                        183997    37.0696  

ECC curve ordering        Count     Percent 
-------------------------+---------+--------
client                    2665      0.5369   
inconclusive-noecc        16        0.0032   
server                    354894    71.5     
unknown                   138780    27.9598  

TLSv1.2 PFS supported sigalgs  Count     Percent 
------------------------------+---------+--------
ECDSA-SHA1                     31932     6.4333   
ECDSA-SHA1 Only                1         0.0002   
ECDSA-SHA224                   31953     6.4375   
ECDSA-SHA256                   31989     6.4448   
ECDSA-SHA384                   32035     6.4541   
ECDSA-SHA512                   32097     6.4665   
ECDSA-SHA512 Only              62        0.0125   
RSA-MD5                        151912    30.6055  
RSA-SHA1                       316124    63.6891  
RSA-SHA1 Only                  44717     9.0091   
RSA-SHA224                     256857    51.7486  
RSA-SHA256                     276593    55.7248  
RSA-SHA256 Only                4237      0.8536   
RSA-SHA384                     257841    51.9469  
RSA-SHA512                     258008    51.9805  
RSA-SHA512 Only                160       0.0322   

TLSv1.2 PFS ordering           Count     Percent 
------------------------------+---------+--------
client                         237214    47.7912  
indeterminate                  8         0.0016   
intolerant                     3109      0.6264   
order-fallback                 18        0.0036   
server                         113482    22.8631  
unsupported                    28681     5.7783   

TLSv1.2 PFS sigalg fallback    Count     Percent 
------------------------------+---------+--------
ECDSA SHA1                     31910     6.4289   
ECDSA intolerant               295       0.0594   
ECDSA soft-nopfs               1         0.0002   
RSA False                      147535    29.7237  
RSA SHA1                       141919    28.5922  
RSA intolerant                 28072     5.6556   
RSA soft-nopfs                 4494      0.9054   

Renegotiation             Count     Percent 
-------------------------+---------+--------
False                     7988      1.6093   
insecure                  22086     4.4496   
secure                    466281    93.941   

Compression               Count     Percent 
-------------------------+---------+--------
1 (zlib compression)      12174     2.4527   
False                     7988      1.6093   
NONE                      476193    95.938   

TLS session ticket hint   Count     Percent 
-------------------------+---------+--------
1                         3         0.0006   
1 only                    3         0.0006   
2                         2         0.0004   
2 only                    2         0.0004   
5                         2         0.0004   
5 only                    2         0.0004   
10                        7         0.0014   
10 only                   7         0.0014   
15                        10        0.002    
15 only                   10        0.002    
30                        11        0.0022   
30 only                   11        0.0022   
60                        95        0.0191   
60 only                   90        0.0181   
70                        6         0.0012   
100                       15        0.003    
100 only                  15        0.003    
120                       31        0.0062   
120 only                  31        0.0062   
128                       2         0.0004   
128 only                  2         0.0004   
150                       2         0.0004   
180                       52        0.0105   
180 only                  50        0.0101   
240                       9         0.0018   
240 only                  9         0.0018   
300                       215043    43.3244  
300 only                  209657    42.2393  
400                       7         0.0014   
400 only                  7         0.0014   
420                       112       0.0226   
420 only                  68        0.0137   
480                       12        0.0024   
480 only                  12        0.0024   
500                       3         0.0006   
500 only                  3         0.0006   
540                       1         0.0002   
540 only                  1         0.0002   
600                       21511     4.3338   
600 only                  21353     4.302    
720                       2         0.0004   
720 only                  1         0.0002   
900                       604       0.1217   
900 only                  585       0.1179   
960                       2         0.0004   
960 only                  2         0.0004   
1200                      1894      0.3816   
1200 only                 1888      0.3804   
1440                      1         0.0002   
1440 only                 1         0.0002   
1500                      11        0.0022   
1500 only                 10        0.002    
1800                      411       0.0828   
1800 only                 405       0.0816   
2400                      6         0.0012   
2400 only                 6         0.0012   
2700                      8         0.0016   
2700 only                 8         0.0016   
3000                      14        0.0028   
3000 only                 13        0.0026   
3300                      1         0.0002   
3300 only                 1         0.0002   
3600                      424       0.0854   
3600 only                 409       0.0824   
3900                      2         0.0004   
3900 only                 2         0.0004   
4200                      1         0.0002   
5400                      15        0.003    
5400 only                 3         0.0006   
6000                      4         0.0008   
6000 only                 4         0.0008   
7200                      15262     3.0748   
7200 only                 10520     2.1195   
10800                     1975      0.3979   
10800 only                1968      0.3965   
14400                     74        0.0149   
14400 only                73        0.0147   
18000                     11        0.0022   
18000 only                11        0.0022   
21600                     4863      0.9797   
21600 only                4863      0.9797   
28800                     2439      0.4914   
28800 only                2009      0.4048   
36000                     1142      0.2301   
36000 only                1136      0.2289   
43200                     28        0.0056   
43200 only                26        0.0052   
60000                     1         0.0002   
60000 only                1         0.0002   
64800                     45917     9.2508   
64800 only                45644     9.1958   
72000                     10        0.002    
72000 only                10        0.002    
86000                     43        0.0087   
86000 only                43        0.0087   
86400                     3392      0.6834   
86400 only                3391      0.6832   
100800                    12408     2.4998   
100800 only               12385     2.4952   
129600                    7         0.0014   
129600 only               7         0.0014   
172800                    5         0.001    
172800 only               5         0.001    
216000                    1         0.0002   
216000 only               1         0.0002   
432000                    1         0.0002   
432000 only               1         0.0002   
604800                    2         0.0004   
604800 only               2         0.0004   
864000                    1         0.0002   
864000 only               1         0.0002   
None                      179585    36.1808  
None only                 168439    33.9352  

Certificate sig alg     Count     Percent 
-------------------------+---------+--------
None                      18390     3.705    
ecdsa-with-SHA256         32196     6.4865   
sha1WithRSAEncryption     162789    32.7969  
sha256WithRSAEncryption   301606    60.7642  
sha384WithRSAEncryption   3         0.0006   
sha512WithRSAEncryption   7         0.0014   

Certificate key size    Count     Percent 
-------------------------+---------+--------
ECDSA 256                 32226     6.4925   
ECDSA 384                 7         0.0014   
ECDSA 521                 1         0.0002   
RSA 1024                  139       0.028    
RSA 10240                 4         0.0008   
RSA 2047                  1         0.0002   
RSA 2048                  446454    89.9465  
RSA 2049                  3         0.0006   
RSA 2056                  3         0.0006   
RSA 2058                  2         0.0004   
RSA 2064                  1         0.0002   
RSA 2080                  2         0.0004   
RSA 2084                  9         0.0018   
RSA 2096                  1         0.0002   
RSA 2345                  1         0.0002   
RSA 2408                  3         0.0006   
RSA 2432                  5         0.001    
RSA 2612                  2         0.0004   
RSA 3071                  1         0.0002   
RSA 3072                  96        0.0193   
RSA 3096                  1         0.0002   
RSA 3102                  1         0.0002   
RSA 3248                  2         0.0004   
RSA 4042                  1         0.0002   
RSA 4048                  2         0.0004   
RSA 4056                  26        0.0052   
RSA 4069                  1         0.0002   
RSA 4086                  2         0.0004   
RSA 4092                  7         0.0014   
RSA 4096                  17401     3.5058   
RSA 8192                  5         0.001    
RSA/ECDSA Dual Stack      45        0.0091

OCSP stapling             Count     Percent 
-------------------------+---------+--------
Supported                 97129     19.5685  
Unsupported               399226    80.4315  

Supported Protocols       Count     Percent
-------------------------+---------+-------
SSL2                      28373     5.7163
SSL2 Only                 30        0.006
SSL3                      139997    28.205
SSL3 Only                 891       0.1795
SSL3 or TLS1 Only         84026     16.9286
SSL3 or lower Only        919       0.1851
TLS1                      493251    99.3746
TLS1 Only                 48794     9.8305
TLS1 or lower Only        110400    22.2421
TLS1.1                    372212    74.9891
TLS1.1 Only               33        0.0066
TLS1.1 or up Only         1982      0.3993
TLS1.2                    382499    77.0616
TLS1.2 Only               916       0.1845
TLS1.2, 1.0 but not 1.1   11830     2.3834


Statistics from 517131 chains provided by 680456 hosts

Server provided chains    Count     Percent
-------------------------+---------+-------
complete                  470323    69.1188
incomplete                19965     2.9341
untrusted                 190168    27.9471

Trusted chain statistics
========================

Chain length              Count     Percent
-------------------------+---------+-------
2                         328       0.0634
3                         262695    50.7985
4                         249615    48.2692
5                         4493      0.8688

CA key size in chains     Count
-------------------------+---------
ECDSA 256                 32189     
ECDSA 384                 32184     
RSA 1024                  65659     
RSA 2045                  1         
RSA 2048                  1046763   
RSA 4096                  115739    

Chains with CA key        Count     Percent
-------------------------+---------+-------
ECDSA 256                 32189     6.2245
ECDSA 384                 32184     6.2236
RSA 1024                  65657     12.6964
RSA 2045                  1         0.0002
RSA 2048                  484420    93.6745
RSA 4096                  114849    22.2089

Signature algorithm (ex. root) Count
------------------------------+---------
ecdsa-with-SHA384              32189     
sha1WithRSAEncryption          287125    
sha256WithRSAEncryption        256796    
sha384WithRSAEncryption        199294    

Eff. host cert chain LoS  Count     Percent
-------------------------+---------+-------
80                        236752    45.7818
112                       248197    47.995
128                       32182     6.2232

Root CAs                                      Count     Percent
---------------------------------------------+---------+-------
(861a399d) AddTrust Class 1 CA Root           126586    24.4785
(2c543cd1) GeoTrust Global CA                 111618    21.5841
(f081611a) The Go Daddy Group, Inc.           52765     10.2034
(5ad8a5d6) GlobalSign Root CA                 52501     10.1524
(eed8c118) COMODO ECC Certification Authority 32182     6.2232
(415660c1) VeriSign, Inc.                     30856     5.9668
(aee5f10d) Entrust.net Certification Authorit 28570     5.5247
(6cc3c4c3) Thawte Server CA                   25221     4.8771
(f387163d) Starfield Technologies, Inc.       11117     2.1497
(ae8153b9) StartCom Certification Authority   9414      1.8204
(653b494a) Baltimore CyberTrust Root          8928      1.7264
(578d5c04) Equifax                            6563      1.2691
(244b5494) DigiCert High Assurance EV Root CA 6432      1.2438

Scan performed between 18th and 28th of June 2015.

-- 
Regards,
Hubert Kario
Quality Engineer, QE BaseOS Security team
Web: www.cz.redhat.com
Red Hat Czech s.r.o., Purkyňova 99/71, 612 45, Brno, Czech Republic

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