SSLv2 DROWN Attack

Last Revised

Network traffic encrypted using an RSA-based SSL certificate may be decrypted if enough SSLv2 handshake data can be collected. Exploitation of this vulnerability—referred to as DROWN in public reporting—may allow a remote attacker to decrypt individual messages from a server supporting SSLv2.

US-CERT encourages users and administrators to review Vulnerability Note VU#583776 and the US-CERT OpenSSL Current Activity for additional information and mitigation details.

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