Deep SSL/TLS Vulnerability Test
This report provides a deep analysis of the SSL/TLS configuration of res.cdn.office.net. It checks for protocol support, cipher strength, and known vulnerabilities.
Scan Results
Testing all IP addresses (port 443): 23.192.223.240 23.192.223.235 ----------------------------------------------------- Start 2026-06-10 13:13:09 -->> 23.192.223.240:443 (res.cdn.office.net) <<-- Further IP addresses: 23.192.223.235 2600:1407:3c00:2b::1730:639a 2600:1407:3c00:2b::1730:6397 rDNS (23.192.223.240): a23-192-223-240.deploy.static.akamaitechnologies.com. Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 400 Bad Request (Hint: better try another URL) HTTP clock skew 0 sec from localtime IPv4 address in header Akamai-Request-BC: [a=23.202.88.112,b=3858582868,c=g,n=US_TX_DALLAS,o=20940],[c=c,n=US_TX_DALLAS,o=20940],[a=4,c=o] (check if it's your IP address or e.g. a cluster IP) Strict Transport Security 365 days=31536000 s, includeSubDomains Public Key Pinning -- Server banner (no "Server" line in header, interesting!) Application banner -- Cookie(s) (none issued at "/") -- HTTP status 400 signals you maybe missed the web application Security headers Access-Control-Allow-Origin: * Pragma: no-cache 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=AB8294E63584A91FB4785A5011EF0AF3E2A7C13FFA3DD63BC4CC8F01A48FEB9C 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) Winshock (CVE-2014-6321), experimental not vulnerable (OK) RC4 (CVE-2013-2566, CVE-2015-2808) no RC4 ciphers detected (OK) Done 2026-06-10 13:13:59 [ 59s] -->> 23.192.223.240:443 (res.cdn.office.net) <<-- ----------------------------------------------------- Start 2026-06-10 13:13:59 -->> 23.192.223.235:443 (res.cdn.office.net) <<-- Further IP addresses: 23.192.223.240 2600:1407:3c00:2b::1730:639a 2600:1407:3c00:2b::1730:6397 rDNS (23.192.223.235): a23-192-223-235.deploy.static.akamaitechnologies.com. Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 400 Bad Request (Hint: better try another URL) HTTP clock skew 0 sec from localtime IPv4 address in header Akamai-Request-BC: [a=23.202.88.105,b=2501123462,c=g,n=US_TX_DALLAS,o=20940],[c=c,n=US_TX_DALLAS,o=20940],[a=4,c=o] (check if it's your IP address or e.g. a cluster IP) Strict Transport Security 365 days=31536000 s, includeSubDomains Public Key Pinning -- Server banner (no "Server" line in header, interesting!) Application banner -- Cookie(s) (none issued at "/") -- HTTP status 400 signals you maybe missed the web application Security headers Access-Control-Allow-Origin: * Pragma: no-cache 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=AB8294E63584A91FB4785A5011EF0AF3E2A7C13FFA3DD63BC4CC8F01A48FEB9C 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) Winshock (CVE-2014-6321), experimental not vulnerable (OK) RC4 (CVE-2013-2566, CVE-2015-2808) no RC4 ciphers detected (OK) Done 2026-06-10 13:14:45 [ 105s] -->> 23.192.223.235:443 (res.cdn.office.net) <<-- ----------------------------------------------------- Done testing now all IP addresses (on port 443): 23.192.223.240 23.192.223.235
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.