SSL Report: medweb.chungbuk.ac.kr (210.115.176.30)
Assessed on:  Sun, 14 Dec 2025 05:43:53 UTC | Clear cache

Due to a recently discovered bug in Apple's code, your browser is exposed to MITM attacks. Click here for more information.

Summary
Overall Rating
A
0
20
40
60
80
100
Certificate
 
Protocol Support
 
Key Exchange
 
Cipher Strength
 

Visit our documentation page for more information, configuration guides, and books. Known issues are documented here.
This server supports TLS 1.3.  MORE INFO »
HTTP Strict Transport Security (HSTS) with long duration deployed on this server.  MORE INFO »
Certificate #1: RSA 2048 bits (SHA256withRSA)
Server Key and Certificate #1
Subject chungbuk.ac.kr
Fingerprint SHA256: e953e0deef4703c960da6dae7e3524b7743257322c3daac6579426a6d8b3966d
Pin SHA256: 621UWgSJGm5Vt1cCy8mL8fC2vt6TK7IlyTVf85ZvzzE=
Common names chungbuk.ac.kr
Alternative names chungbuk.ac.kr cbnu.ac.kr *.chungbuk.ac.kr *.cbnu.ac.kr *.cbu.ac.kr cbu.ac.kr
Serial Number 032d3c5259f87552016c8f59068b63bf
Valid from Mon, 10 Feb 2025 00:00:00 UTC
Valid until Fri, 13 Mar 2026 23:59:59 UTC (expires in 2 months and 27 days)
Key RSA 2048 bits (e 65537)
Weak key (Debian) No
Issuer Thawte TLS RSA CA G1
AIA: http://cacerts.thawte.com/ThawteTLSRSACAG1.crt
Signature algorithm SHA256withRSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information CRL, OCSP
CRL: http://cdp.thawte.com/ThawteTLSRSACAG1.crl
OCSP: http://status.thawte.com
Revocation status Good (not revoked)
DNS CAA No (more info)
Trusted Yes
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 5 (6447 bytes)
Chain issues Incorrect order, Extra certs, Contains anchor
#2
Subject chungbuk.ac.kr
Fingerprint SHA256: e953e0deef4703c960da6dae7e3524b7743257322c3daac6579426a6d8b3966d
Pin SHA256: 621UWgSJGm5Vt1cCy8mL8fC2vt6TK7IlyTVf85ZvzzE=
Valid until Fri, 13 Mar 2026 23:59:59 UTC (expires in 2 months and 27 days)
Key RSA 2048 bits (e 65537)
Issuer Thawte TLS RSA CA G1
Signature algorithm SHA256withRSA
#3
Subject Thawte TLS RSA CA G1
Fingerprint SHA256: 4bcc5e234fe81ede4eaf883aa19c31335b0b26e85e066b9945e4cb6153eb20c2
Pin SHA256: 42b9RNOnyb3tlC0KYtNPA3KKpJluskyU6aG+CipUmaM=
Valid until Tue, 02 Nov 2027 12:24:25 UTC (expires in 1 year and 10 months)
Key RSA 2048 bits (e 65537)
Issuer DigiCert Global Root G2
Signature algorithm SHA256withRSA
#4
Subject DigiCert Global Root G2   In trust store
Fingerprint SHA256: cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f
Pin SHA256: i7WTqTvh0OioIruIfFR4kMPnBqrS2rdiVPl/s2uC/CY=
Valid until Fri, 15 Jan 2038 12:00:00 UTC (expires in 12 years and 1 month)
Key RSA 2048 bits (e 65537)
Issuer DigiCert Global Root G2   Self-signed
Signature algorithm SHA256withRSA
#5
Subject DigiCert Global Root G2   In trust store
Fingerprint SHA256: cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f
Pin SHA256: i7WTqTvh0OioIruIfFR4kMPnBqrS2rdiVPl/s2uC/CY=
Valid until Fri, 15 Jan 2038 12:00:00 UTC (expires in 12 years and 1 month)
Key RSA 2048 bits (e 65537)
Issuer DigiCert Global Root G2   Self-signed
Signature algorithm SHA256withRSA


Certification Paths
Path #1: Trusted
1 Sent by server chungbuk.ac.kr
Fingerprint SHA256: e953e0deef4703c960da6dae7e3524b7743257322c3daac6579426a6d8b3966d
Pin SHA256: 621UWgSJGm5Vt1cCy8mL8fC2vt6TK7IlyTVf85ZvzzE=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server Thawte TLS RSA CA G1
Fingerprint SHA256: 4bcc5e234fe81ede4eaf883aa19c31335b0b26e85e066b9945e4cb6153eb20c2
Pin SHA256: 42b9RNOnyb3tlC0KYtNPA3KKpJluskyU6aG+CipUmaM=

RSA 2048 bits (e 65537) / SHA256withRSA
3 Sent by server
In trust store
DigiCert Global Root G2   Self-signed
Fingerprint SHA256: cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f
Pin SHA256: i7WTqTvh0OioIruIfFR4kMPnBqrS2rdiVPl/s2uC/CY=

RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server chungbuk.ac.kr
Fingerprint SHA256: e953e0deef4703c960da6dae7e3524b7743257322c3daac6579426a6d8b3966d
Pin SHA256: 621UWgSJGm5Vt1cCy8mL8fC2vt6TK7IlyTVf85ZvzzE=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server Thawte TLS RSA CA G1
Fingerprint SHA256: 4bcc5e234fe81ede4eaf883aa19c31335b0b26e85e066b9945e4cb6153eb20c2
Pin SHA256: 42b9RNOnyb3tlC0KYtNPA3KKpJluskyU6aG+CipUmaM=

RSA 2048 bits (e 65537) / SHA256withRSA
3 Sent by server
In trust store
DigiCert Global Root G2   Self-signed
Fingerprint SHA256: cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f
Pin SHA256: i7WTqTvh0OioIruIfFR4kMPnBqrS2rdiVPl/s2uC/CY=

RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server chungbuk.ac.kr
Fingerprint SHA256: e953e0deef4703c960da6dae7e3524b7743257322c3daac6579426a6d8b3966d
Pin SHA256: 621UWgSJGm5Vt1cCy8mL8fC2vt6TK7IlyTVf85ZvzzE=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server Thawte TLS RSA CA G1
Fingerprint SHA256: 4bcc5e234fe81ede4eaf883aa19c31335b0b26e85e066b9945e4cb6153eb20c2
Pin SHA256: 42b9RNOnyb3tlC0KYtNPA3KKpJluskyU6aG+CipUmaM=

RSA 2048 bits (e 65537) / SHA256withRSA
3 Sent by server
In trust store
DigiCert Global Root G2   Self-signed
Fingerprint SHA256: cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f
Pin SHA256: i7WTqTvh0OioIruIfFR4kMPnBqrS2rdiVPl/s2uC/CY=

RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server chungbuk.ac.kr
Fingerprint SHA256: e953e0deef4703c960da6dae7e3524b7743257322c3daac6579426a6d8b3966d
Pin SHA256: 621UWgSJGm5Vt1cCy8mL8fC2vt6TK7IlyTVf85ZvzzE=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server Thawte TLS RSA CA G1
Fingerprint SHA256: 4bcc5e234fe81ede4eaf883aa19c31335b0b26e85e066b9945e4cb6153eb20c2
Pin SHA256: 42b9RNOnyb3tlC0KYtNPA3KKpJluskyU6aG+CipUmaM=

RSA 2048 bits (e 65537) / SHA256withRSA
3 Sent by server
In trust store
DigiCert Global Root G2   Self-signed
Fingerprint SHA256: cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f
Pin SHA256: i7WTqTvh0OioIruIfFR4kMPnBqrS2rdiVPl/s2uC/CY=

RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server chungbuk.ac.kr
Fingerprint SHA256: e953e0deef4703c960da6dae7e3524b7743257322c3daac6579426a6d8b3966d
Pin SHA256: 621UWgSJGm5Vt1cCy8mL8fC2vt6TK7IlyTVf85ZvzzE=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server Thawte TLS RSA CA G1
Fingerprint SHA256: 4bcc5e234fe81ede4eaf883aa19c31335b0b26e85e066b9945e4cb6153eb20c2
Pin SHA256: 42b9RNOnyb3tlC0KYtNPA3KKpJluskyU6aG+CipUmaM=

RSA 2048 bits (e 65537) / SHA256withRSA
3 Sent by server
In trust store
DigiCert Global Root G2   Self-signed
Fingerprint SHA256: cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f
Pin SHA256: i7WTqTvh0OioIruIfFR4kMPnBqrS2rdiVPl/s2uC/CY=

RSA 2048 bits (e 65537) / SHA256withRSA

Click here to expand

Configuration
Protocols
TLS 1.3 Yes
TLS 1.2 No
TLS 1.1 No
TLS 1.0 No
SSL 3 No
SSL 2 No


Cipher Suites
# TLS 1.3 (suites in server-preferred order)
TLS_AES_256_GCM_SHA384 (0x1302)   ECDH x25519 (eq. 3072 bits RSA)   FS 256
TLS_CHACHA20_POLY1305_SHA256 (0x1303)   ECDH x25519 (eq. 3072 bits RSA)   FS 256
TLS_AES_128_GCM_SHA256 (0x1301)   ECDH x25519 (eq. 3072 bits RSA)   FS 128


Handshake Simulation
Android 8.1 -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH x25519  FS
Android 9.0 -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH x25519  FS
Chrome 69 / Win 7  R Server sent fatal alert: protocol_version
Chrome 70 / Win 10 -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH x25519  FS
Chrome 80 / Win 10  R -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH x25519  FS
Firefox 62 / Win 7  R Server sent fatal alert: protocol_version
Firefox 73 / Win 10  R -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH x25519  FS
Java 11.0.3 -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH secp256r1  FS
Java 12.0.1 -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH secp256r1  FS
OpenSSL 1.1.0k  R Server sent fatal alert: protocol_version
OpenSSL 1.1.1c  R -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH x25519  FS
Safari 12.1.2 / MacOS 10.14.6 Beta  R -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH x25519  FS
Safari 12.1.1 / iOS 12.3.1  R -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH x25519  FS
# Not simulated clients (Protocol mismatch)
Android 2.3.7   No SNI 2 Protocol mismatch (not simulated)
Android 4.0.4 Protocol mismatch (not simulated)
Android 4.1.1 Protocol mismatch (not simulated)
Android 4.2.2 Protocol mismatch (not simulated)
Android 4.3 Protocol mismatch (not simulated)
Android 4.4.2 Protocol mismatch (not simulated)
Android 5.0.0 Protocol mismatch (not simulated)
Android 6.0 Protocol mismatch (not simulated)
Android 7.0 Protocol mismatch (not simulated)
Android 8.0 Protocol mismatch (not simulated)
Baidu Jan 2015 Protocol mismatch (not simulated)
BingPreview Jan 2015 Protocol mismatch (not simulated)
Chrome 49 / XP SP3 Protocol mismatch (not simulated)
Firefox 31.3.0 ESR / Win 7 Protocol mismatch (not simulated)
Firefox 47 / Win 7  R Protocol mismatch (not simulated)
Firefox 49 / XP SP3 Protocol mismatch (not simulated)
Googlebot Feb 2018 Protocol mismatch (not simulated)
IE 6 / XP   No FS 1   No SNI 2 Protocol mismatch (not simulated)
IE 7 / Vista Protocol mismatch (not simulated)
IE 8 / XP   No FS 1   No SNI 2 Protocol mismatch (not simulated)
IE 8-10 / Win 7  R Protocol mismatch (not simulated)
IE 11 / Win 7  R Protocol mismatch (not simulated)
IE 11 / Win 8.1  R Protocol mismatch (not simulated)
IE 10 / Win Phone 8.0 Protocol mismatch (not simulated)
IE 11 / Win Phone 8.1  R Protocol mismatch (not simulated)
IE 11 / Win Phone 8.1 Update  R Protocol mismatch (not simulated)
IE 11 / Win 10  R Protocol mismatch (not simulated)
Edge 15 / Win 10  R Protocol mismatch (not simulated)
Edge 16 / Win 10  R Protocol mismatch (not simulated)
Edge 18 / Win 10  R Protocol mismatch (not simulated)
Edge 13 / Win Phone 10  R Protocol mismatch (not simulated)
Java 6u45   No SNI 2 Protocol mismatch (not simulated)
Java 7u25 Protocol mismatch (not simulated)
Java 8u161 Protocol mismatch (not simulated)
OpenSSL 0.9.8y Protocol mismatch (not simulated)
OpenSSL 1.0.1l  R Protocol mismatch (not simulated)
OpenSSL 1.0.2s  R Protocol mismatch (not simulated)
Safari 5.1.9 / OS X 10.6.8 Protocol mismatch (not simulated)
Safari 6 / iOS 6.0.1 Protocol mismatch (not simulated)
Safari 6.0.4 / OS X 10.8.4  R Protocol mismatch (not simulated)
Safari 7 / iOS 7.1  R Protocol mismatch (not simulated)
Safari 7 / OS X 10.9  R Protocol mismatch (not simulated)
Safari 8 / iOS 8.4  R Protocol mismatch (not simulated)
Safari 8 / OS X 10.10  R Protocol mismatch (not simulated)
Safari 9 / iOS 9  R Protocol mismatch (not simulated)
Safari 9 / OS X 10.11  R Protocol mismatch (not simulated)
Safari 10 / iOS 10  R Protocol mismatch (not simulated)
Safari 10 / OS X 10.12  R Protocol mismatch (not simulated)
Apple ATS 9 / iOS 9  R Protocol mismatch (not simulated)
Yahoo Slurp Jan 2015 Protocol mismatch (not simulated)
YandexBot Jan 2015 Protocol mismatch (not simulated)

Click here to expand

(1) Clients that do not support Forward Secrecy (FS) are excluded when determining support for it.
(2) No support for virtual SSL hosting (SNI). Connects to the default site if the server uses SNI.
(3) Only first connection attempt simulated. Browsers sometimes retry with a lower protocol version.
(R) Denotes a reference browser or client, with which we expect better effective security.
(All) We use defaults, but some platforms do not use their best protocols and features (e.g., Java 6 & 7, older IE).
(All) Certificate trust is not checked in handshake simulation, we only perform TLS handshake.


Protocol Details
ROBOT (vulnerability) No (more info)
Forward Secrecy Yes (with most browsers)   ROBUST (more info)
ALPN Yes   http/1.1
Session resumption (tickets) No
OCSP stapling No
Strict Transport Security (HSTS) Yes
max-age=31536000; includeSubDomains
HSTS Preloading Not in: Chrome  Edge  Firefox  IE 
Public Key Pinning (HPKP) No (more info)
Public Key Pinning Report-Only No
Public Key Pinning (Static) No (more info)
Supported Named Groups x25519, secp256r1, secp384r1, secp521r1 (server preferred order)
SSL 2 handshake compatibility No
0-RTT enabled No


HTTP Requests
1 https://medweb.chungbuk.ac.kr/  (HTTP/1.1 200 OK)
1
Date Sun, 14 Dec 2025 05:43:30 GMT
Server CBNU MED
Set-Cookie DamCMSIdmedweb=afrndt0iove5q77f3cpfkcqm5n; expires=Sun, 14-Dec-2025 15:43:30 GMT; Max-Age=36000; path=/; secure; HttpOnly; SameSite=None
Expires 0
Cache-Control no-cache, no-store, must-revalidate
Pragma no-cache
Content-Security-Policy default-src 'self'; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; script-src 'self' 'unsafe-inline' 'unsafe-eval' https://ssl.daumcdn.net https://malsup.github.io https://ajax.googleapis.com; img-src 'self' data: https://inst.cbnu.ac.kr https://stlog1-local.kakao.com https://t1.daumcdn.net https://map.daumcdn.net https://mts.daumcdn.net; connect-src 'self'; object-src 'none'; frame-src 'self' https://www.youtube.com; font-src 'self' https://fonts.gstatic.com; frame-ancestors 'none'; base-uri 'self'; form-action 'self';
X-Content-Type-Options nosniff
Strict-Transport-Security max-age=31536000; includeSubDomains
Referrer-Policy strict-origin-when-cross-origin
Set-Cookie writeid=86022; expires=Sun, 14-Dec-2025 06:43:30 GMT; Max-Age=3600; path=/
Set-Cookie DamCMSIdmedweb=dasms1765691011; expires=Mon, 15-Dec-2025 05:43:31 GMT; Max-Age=86400; path=/
Vary Accept-Encoding
Connection close
Transfer-Encoding chunked
Content-Type text/html; charset=UTF-8


Miscellaneous
Test date Sun, 14 Dec 2025 05:43:21 UTC
Test duration 31.795 seconds
HTTP status code 200
HTTP server signature CBNU MED
Server hostname -


SSL Report v2.4.1