Deep SSL/TLS Vulnerability Test
This report provides a deep analysis of the SSL/TLS configuration of counter.yadro.ru. It checks for protocol support, cipher strength, and known vulnerabilities.
Scan Results
Testing all IP addresses (port 443): 88.212.202.52 88.212.201.198 88.212.201.204 ----------------------------------------------------- Start 2026-10-10 23:28:10 -->> 88.212.202.52:443 (counter.yadro.ru) <<-- Further IP addresses: 88.212.201.204 88.212.201.198 rDNS (88.212.202.52): -- Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 200 OK HTTP clock skew -1 sec from localtime Strict Transport Security 86400 s = 1 days is too short ( >= 15552000 seconds recommended), just this domain Public Key Pinning -- Server banner nginx/1.17.9 Application banner -- Cookie(s) (none issued at "/") 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) 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, see https://search.censys.io/search?resource=hosts&virtual_hosts=INCLUDE&q=E30CE2A396DEEE7E146FAB8EB7C6172BB3263C827E979613975A85D9E0E9F386 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-ECDSA-AES128-SHA AES128-SHA VULNERABLE -- but also supports higher protocols TLSv1.1 TLSv1.2 (likely mitigated) 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) - CAMELLIA or ECDHE_RSA GCM ciphers found RC4 (CVE-2013-2566, CVE-2015-2808) no RC4 ciphers detected (OK) Done 2026-10-10 23:29:42 [ 99s] -->> 88.212.202.52:443 (counter.yadro.ru) <<-- ----------------------------------------------------- Start 2026-10-10 23:29:43 -->> 88.212.201.198:443 (counter.yadro.ru) <<-- Further IP addresses: 88.212.201.204 88.212.202.52 rDNS (88.212.201.198): -- Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 200 OK HTTP clock skew 0 sec from localtime Strict Transport Security 86400 s = 1 days is too short ( >= 15552000 seconds recommended), just this domain Public Key Pinning -- Server banner nginx/1.17.9 Application banner -- Cookie(s) (none issued at "/") 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) Downgrade attack prevention supported (OK) SWEET32 (CVE-2016-2183, CVE-2016-6329) VULNERABLE, uses 64 bit block ciphers 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=E30CE2A396DEEE7E146FAB8EB7C6172BB3263C827E979613975A85D9E0E9F386 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-ECDSA-AES128-SHA AES128-SHA DES-CBC3-SHA VULNERABLE -- but also supports higher protocols TLSv1.1 TLSv1.2 (likely mitigated) 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) - CAMELLIA or ECDHE_RSA GCM ciphers found RC4 (CVE-2013-2566, CVE-2015-2808) no RC4 ciphers detected (OK) Done 2026-10-10 23:31:15 [ 192s] -->> 88.212.201.198:443 (counter.yadro.ru) <<-- ----------------------------------------------------- Start 2026-10-10 23:31:15 -->> 88.212.201.204:443 (counter.yadro.ru) <<-- Further IP addresses: 88.212.202.52 88.212.201.198 rDNS (88.212.201.204): -- Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 200 OK HTTP clock skew 0 sec from localtime Strict Transport Security 86400 s = 1 days is too short ( >= 15552000 seconds recommended), just this domain Public Key Pinning -- Server banner nginx/1.17.9 Application banner -- Cookie(s) (none issued at "/") 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) Downgrade attack prevention supported (OK) SWEET32 (CVE-2016-2183, CVE-2016-6329) VULNERABLE, uses 64 bit block ciphers 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=E30CE2A396DEEE7E146FAB8EB7C6172BB3263C827E979613975A85D9E0E9F386 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-ECDSA-AES128-SHA AES128-SHA DES-CBC3-SHA VULNERABLE -- but also supports higher protocols TLSv1.1 TLSv1.2 (likely mitigated) 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) - CAMELLIA or ECDHE_RSA GCM ciphers found RC4 (CVE-2013-2566, CVE-2015-2808) no RC4 ciphers detected (OK) Done 2026-10-10 23:32:49 [ 286s] -->> 88.212.201.204:443 (counter.yadro.ru) <<-- ----------------------------------------------------- Done testing now all IP addresses (on port 443): 88.212.202.52 88.212.201.198 88.212.201.204
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.