Deep SSL/TLS Vulnerability Test

This report provides a deep analysis of the SSL/TLS configuration of scdn.cda.pl. It checks for protocol support, cipher strength, and known vulnerabilities.

Scan Results

Testing all IP addresses (port 443): 137.74.6.102 51.75.36.68 51.83.152.64 51.83.150.255
-----------------------------------------------------
 Start 2026-10-05 22:33:37        -->> 137.74.6.102:443 (scdn.cda.pl) <<--

 Further IP addresses:   51.83.150.255 51.75.36.68 51.83.152.64 
 rDNS (137.74.6.102):    ip102.ip-137-74-6.eu.
 Service detected:       HTTP

 Testing for server implementation bugs 

 No bugs found.

 Testing HTTP header response @ "/" 

 HTTP Status Code             403 Forbidden
 HTTP clock skew              0 sec from localtime
 Strict Transport Security    not offered
 Public Key Pinning           --
 Server banner                nginx
 Application banner           --
 Cookie(s)                    (none issued at "/") -- HTTP status 403 signals you maybe missed the web application
 Security headers             --
 Reverse Proxy banner         --


 Testing vulnerabilities 

 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 gzip/deflate/compress/br HTTP compression (OK)  - only supplied "/" tested
 POODLE, SSL (CVE-2014-3566)               not vulnerable (OK)
 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, see
                                           https://search.censys.io/search?resource=hosts&virtual_hosts=INCLUDE&q=BC6430DD10A477F57045EF13FD49C8A4AED8B96804CD922D7301B8B816BE923A
 LOGJAM (CVE-2015-4000), experimental      not vulnerable (OK): no DH EXPORT ciphers, no common prime detected
 BEAST (CVE-2011-3389)                     not vulnerable (OK), no SSL3 or TLS1
 LUCKY13 (CVE-2013-0169), experimental     potentially VULNERABLE, uses obsolete cipher block chaining ciphers with TLS, see server prefs.
 Winshock (CVE-2014-6321), experimental    not vulnerable (OK)
 RC4 (CVE-2013-2566, CVE-2015-2808)        no RC4 ciphers detected (OK)


 Done 2026-10-05 22:34:59 [  89s] -->> 137.74.6.102:443 (scdn.cda.pl) <<--

-----------------------------------------------------
 Start 2026-10-05 22:34:59        -->> 51.75.36.68:443 (scdn.cda.pl) <<--

 Further IP addresses:   51.83.150.255 137.74.6.102 51.83.152.64 
 rDNS (51.75.36.68):     ip68.ip-51-75-36.eu.
 Service detected:       HTTP

 Testing for server implementation bugs 

 No bugs found.

 Testing HTTP header response @ "/" 

 HTTP Status Code             403 Forbidden
 HTTP clock skew              0 sec from localtime
 Strict Transport Security    not offered
 Public Key Pinning           --
 Server banner                nginx
 Application banner           --
 Cookie(s)                    (none issued at "/") -- HTTP status 403 signals you maybe missed the web application
 Security headers             --
 Reverse Proxy banner         --


 Testing vulnerabilities 

 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 gzip/deflate/compress/br HTTP compression (OK)  - only supplied "/" tested
 POODLE, SSL (CVE-2014-3566)               not vulnerable (OK)
 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, see
                                           https://search.censys.io/search?resource=hosts&virtual_hosts=INCLUDE&q=BC6430DD10A477F57045EF13FD49C8A4AED8B96804CD922D7301B8B816BE923A
 LOGJAM (CVE-2015-4000), experimental      not vulnerable (OK): no DH EXPORT ciphers, no common prime detected
 BEAST (CVE-2011-3389)                     not vulnerable (OK), no SSL3 or TLS1
 LUCKY13 (CVE-2013-0169), experimental     potentially VULNERABLE, uses obsolete cipher block chaining ciphers with TLS, see server prefs.
 Winshock (CVE-2014-6321), experimental    not vulnerable (OK)
 RC4 (CVE-2013-2566, CVE-2015-2808)        no RC4 ciphers detected (OK)


 Done 2026-10-05 22:36:26 [ 177s] -->> 51.75.36.68:443 (scdn.cda.pl) <<--

-----------------------------------------------------
 Start 2026-10-05 22:36:26        -->> 51.83.152.64:443 (scdn.cda.pl) <<--

 Further IP addresses:   51.83.150.255 137.74.6.102 51.75.36.68 
 rDNS (51.83.152.64):    ip64.ip-51-83-152.eu.
 Service detected:       HTTP

 Testing for server implementation bugs 

 No bugs found.

 Testing HTTP header response @ "/" 

 HTTP Status Code             403 Forbidden
 HTTP clock skew              0 sec from localtime
 Strict Transport Security    not offered
 Public Key Pinning           --
 Server banner                nginx
 Application banner           --
 Cookie(s)                    (none issued at "/") -- HTTP status 403 signals you maybe missed the web application
 Security headers             --
 Reverse Proxy banner         --


 Testing vulnerabilities 

 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 gzip/deflate/compress/br HTTP compression (OK)  - only supplied "/" tested
 POODLE, SSL (CVE-2014-3566)               not vulnerable (OK)
 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, see
                                           https://search.censys.io/search?resource=hosts&virtual_hosts=INCLUDE&q=BC6430DD10A477F57045EF13FD49C8A4AED8B96804CD922D7301B8B816BE923A
 LOGJAM (CVE-2015-4000), experimental      not vulnerable (OK): no DH EXPORT ciphers, no common prime detected
 BEAST (CVE-2011-3389)                     not vulnerable (OK), no SSL3 or TLS1
 LUCKY13 (CVE-2013-0169), experimental     potentially VULNERABLE, uses obsolete cipher block chaining ciphers with TLS, see server prefs.
 Winshock (CVE-2014-6321), experimental    not vulnerable (OK)
 RC4 (CVE-2013-2566, CVE-2015-2808)        no RC4 ciphers detected (OK)


 Done 2026-10-05 22:37:55 [ 266s] -->> 51.83.152.64:443 (scdn.cda.pl) <<--

-----------------------------------------------------
 Start 2026-10-05 22:37:55        -->> 51.83.150.255:443 (scdn.cda.pl) <<--

 Further IP addresses:   137.74.6.102 51.75.36.68 51.83.152.64 
 rDNS (51.83.150.255):   ip255.ip-51-83-150.eu.
 Service detected:       HTTP

 Testing for server implementation bugs 

 No bugs found.

 Testing HTTP header response @ "/" 

 HTTP Status Code             403 Forbidden
 HTTP clock skew              0 sec from localtime
 Strict Transport Security    not offered
 Public Key Pinning           --
 Server banner                nginx
 Application banner           --
 Cookie(s)                    (none issued at "/") -- HTTP status 403 signals you maybe missed the web application
 Security headers             --
 Reverse Proxy banner         --


 Testing vulnerabilities 

 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 gzip/deflate/compress/br HTTP compression (OK)  - only supplied "/" tested
 POODLE, SSL (CVE-2014-3566)               not vulnerable (OK)
 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, see
                                           https://search.censys.io/search?resource=hosts&virtual_hosts=INCLUDE&q=BC6430DD10A477F57045EF13FD49C8A4AED8B96804CD922D7301B8B816BE923A
 LOGJAM (CVE-2015-4000), experimental      not vulnerable (OK): no DH EXPORT ciphers, no common prime detected
 BEAST (CVE-2011-3389)                     not vulnerable (OK), no SSL3 or TLS1
 LUCKY13 (CVE-2013-0169), experimental     potentially VULNERABLE, uses obsolete cipher block chaining ciphers with TLS, see server prefs.
 Winshock (CVE-2014-6321), experimental    not vulnerable (OK)
 RC4 (CVE-2013-2566, CVE-2015-2808)        no RC4 ciphers detected (OK)


 Done 2026-10-05 22:39:23 [ 354s] -->> 51.83.150.255:443 (scdn.cda.pl) <<--

-----------------------------------------------------
Done testing now all IP addresses (on port 443): 137.74.6.102 51.75.36.68 51.83.152.64 51.83.150.255

About this Scan

This scan uses testssl.sh to check for:

  • Protocols: SSLv2, SSLv3, TLS 1.0, TLS 1.1, TLS 1.2, TLS 1.3
  • Vulnerabilities: Heartbleed, POODLE, FREAK, Logjam, DROWN, etc.
  • Cipher Suites: Weak ciphers, perfect forward secrecy (PFS) support.

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