Kerio connect download11/4/2022 ~ # /opt/kerio/winroute/tinydbclient "update ssl set forcetlsv1_1=1" Type the following commands in console or SSH: The login is root, and the password is the same as the admin account used to access the web administration. A new button will appear in the bottom left to enable SSH access. To enable SSH access, hold the shift key while clicking the System Health dialog. Workaround for Kerio ControlĬhange configuration value " ForceTLSv1_1" to "1" and restart the server.įor all appliance editions, this requires SSH access. It allows an attacker to get full access to user's statistics or product configuration. ImpactĪn attacker can obtain a HTTP session cookie for Kerio Control client or web administration session by intercepting network communication and decrypting SSL 3.0. Kerio Control - will be patched (workaround available) Affected version Edit the mailserver.cfg file and change " DisableSSLv3" configuration value to "1". KERIO CONNECT DOWNLOAD UPDATEUpdate to version 8.3.3 (released Oct 16) and higher. Kerio recommends to disable SSL 3.0 support if there is no requirement for compatibility with old internet browsers or email clients. PatchĪ patched version with TLS_FALLBACK_SCSV support in OpenSSL is available in Kerio Connect 8.3.4 (Oct 23, 2014). You can download the update from the Kerio Connect download page. It allows an attacker to get full access to user's mailbox or product configuration. Kerio Connect - patched with 8.3.4 (Oct 23, 2014) Affected versionsĪn attacker can obtain a HTTP session cookie for Kerio Connect client or web administration session by intercepting network communication and decrypting SSL 3.0. After that he can use other attack techniques to decipher transmitted data. An attacker that controls the network between the client and the server can interfere with any attempted handshake offering TLS 1.0 or later and force both client and server to use SSL 3.0 protocol instead. This vulnerability is a flaw in protocol design.
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