04-26-2024 05:58 AM
Hey guys - Does anyone else have this issue in the title with ASA using the WebVPN ? TLS handshakes are failing after the Chrome 124 updates. After doing research it's due to hybridized kyber support. The current workaround for Chrome/ Edge is below for anyone else that has this issue but I've seen 0 posts on this regarding Cisco. Plenty of other vendors have this issue as well
chrome://flags/#enable-tls13-kyber set to disabled
Computer Configuration > Policies > Administrative Templates > Google > Google Chrome > Enable post-quantum key agreement for TLS > Disabled
Computer Configuration > Policies > Administrative Templates > Microsoft Edge> Enable post-quantum key agreement for TLS > Disabled