Deep SSL/TLS Vulnerability Test
This report provides a deep analysis of the SSL/TLS configuration of networkrail.co.uk. It checks for protocol support, cipher strength, and known vulnerabilities.
Scan Results
Testing all IP addresses (port 443): 141.193.213.11 141.193.213.10 ----------------------------------------------------- Start 2026-04-08 13:16:27 -->> 141.193.213.11:443 (networkrail.co.uk) <<-- Further IP addresses: 141.193.213.10 rDNS (141.193.213.11): -- Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 301 Moved Permanently, redirecting to "https://www.networkrail.co.uk/" HTTP clock skew 0 sec from localtime IPv4 address in header Set-Cookie: __cf_bm=k58kw3UdIr0SwW_G85Svuc3K5.2.CQNbR35gKicZdeY-1775654212-1.0.1.1-97M2_yfHzEyNmtPpdpxIiE3JMTdRA4yZuq_b7tAZC5pEozNlk3FT10.2Kqvw8eZ8SAPtQT6LP.yrqMK5cMNC8s7_erTH3k4cSONiWgCN.cM; path=/; expires=Wed, 08-Apr-26 13:46:52 GMT; domain=.networkrail.co.uk; HttpOnly; Secure; SameSite=None (check if it's your IP address or e.g. a cluster IP) Strict Transport Security 730 days=63072000 s, just this domain Public Key Pinning -- Server banner cloudflare Application banner -- Cookie(s) 1 issued: 1/1 secure, 1/1 HttpOnly -- maybe better try target URL of 30x 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=B57AB9A431ACC4317A3CE8B4D7FCC847EC5D88CB12BDC151C47BF11FE7AAD325 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 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 2026-04-08 13:17:10 [ 54s] -->> 141.193.213.11:443 (networkrail.co.uk) <<-- ----------------------------------------------------- Start 2026-04-08 13:17:10 -->> 141.193.213.10:443 (networkrail.co.uk) <<-- Further IP addresses: 141.193.213.11 rDNS (141.193.213.10): -- Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 301 Moved Permanently, redirecting to "https://www.networkrail.co.uk/" HTTP clock skew 0 sec from localtime IPv4 address in header Set-Cookie: __cf_bm=X553a6aGLXq12RBZSIQtKbyqDAYHp6k.Xk4tjbgq20c-1775654265-1.0.1.1-lHYCM6MMOPZuq6.WsbENtdWuxaSFnGq2o6NQBAgOKCwccYLtchsC41lXgxJDskEBYarmqzccCFCCSxGhu5bEuPqdTvKAho4QE3Yn08Nhvzg; path=/; expires=Wed, 08-Apr-26 13:47:45 GMT; domain=.networkrail.co.uk; HttpOnly; Secure; SameSite=None (check if it's your IP address or e.g. a cluster IP) Strict Transport Security 730 days=63072000 s, just this domain Public Key Pinning -- Server banner cloudflare Application banner -- Cookie(s) 1 issued: 1/1 secure, 1/1 HttpOnly -- maybe better try target URL of 30x 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=B57AB9A431ACC4317A3CE8B4D7FCC847EC5D88CB12BDC151C47BF11FE7AAD325 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 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 2026-04-08 13:18:04 [ 108s] -->> 141.193.213.10:443 (networkrail.co.uk) <<-- ----------------------------------------------------- Done testing now all IP addresses (on port 443): 141.193.213.11 141.193.213.10
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.