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After Weak cipher remediation , URL not working in chrome while IE load is fine.
Chrome not able to load URL using only TLS 1.2 with SHA256 AES256.Website works fine in IE.
Are there any setting changes needed to resolve the issue?
7 Replies
- Hi Krishna, - just tested the cipher support of Chrome. Chrome does not support the cihper called AES256-SHA256 (ID 61). It does only support AES256-SHA (ID 53) or AES256-GCM-SHA384 (ID 157) if you require a (non-DH) RSA based AES256. - Qualys SSL Labs: SSL/TLS Capabilities of Your Browser - https://www.ssllabs.com/ssltest/viewMyClient.html - To workaround this limitation, I would recommend to change your cipher string to include 
 as well as- AES256-GCM-SHA384
 . The GCM is considered more secure than CBC, so you will more or less increase the security of those browser who support this chiper spec.- AES256-SHA256- [root@f501:Active:Standalone] / tmm --clientcipher 'AES256-GCM-SHA384:AES256-SHA256:-SSLv3:-DTLSv1:-TLSv1:-TLSv1_1' ID SUITE BITS PROT METHOD CIPHER MAC KEYX 0: 157 AES256-GCM-SHA384 256 TLS1.2 Native AES-GCM SHA384 RSA 1: 61 AES256-SHA256 256 TLS1.2 Native AES SHA256 RSA [root@f501:Active:Standalone] /- Cheers, Kai 
- youssef1Cumulonimbus Hi, You can take a packet capture of the ssl handshake (with ssldump) to see exactly which ciphers are being negotiated and selected. https://support.f5.com/csp/article/K10209 Then check if you find a reference in chrome support/forum that talking about your problem. SO first capture traffic then check with ssldump which ciphers/protocol are negotiated it will be helpfull for your to find a solution... Regards 
- Hi Krishna, - please post your Client SSL Profile cipher string. Maybe we can optimize it further... - Cheers, Kai 
- Krishna_388466Altostratus Thanks. When I tried the above option in chrome://flags/ssl-version-max,I dont see any settings related to tls1.3 or ssl.. 
- Samir_Jha_52506Noctilucent RC4 is disabled by chrome. Run below in chrome browser chrome://flags/ssl-version-maxThen change the maximum TLS version enabled from default to TLS 1.3 And select tls1.3 will work. Try n confirm. 
- Krishna_388466Altostratus err_ssl_version_or_cipher_mismatch is the error message 
- Samir_Jha_52506Noctilucent Can you please share the error message which you are seeing Google chrome? I am suspecting that chrome has removed RC4 cipher in chrome v48.. 
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