CVE-2010-4180: OpenSSL vulnerability, NETSCAPE_REUSE_CIPHER_CHANGE_BUG ciphersuite downgrade attack

Issue

OpenSSL SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG Session Resume Ciphersuite Downgrade Weakness

Synopsis:
The remote host allows resuming SSL sessions.

Description:
The version of OpenSSL on the remote host has been shown to allow resuming session with a different cipher than was used when the session was initiated. This means that an attacker that sees (i.e., by sniffing) the start of an SSL connection can manipulate the OpenSSL session cache to cause subsequent resumes of that session to use a weaker cipher chosen by the attacker. Note that other SSL implementations may also be affected by this vulnerability.

Risk factor:
Medium