A vulnerability has been identified in OpenSSL, which could be exploited by attackers to bypass certain security policies. This issue is due to an error in the "SSL_OP_MSIE_SSLV2_RSA_PADDING" option (part of SSL_OP_ALL) that does not properly reject SSL 2.0 sessions when a client supports SSL 3.0 or TLS 1.0, which could be exploited to conduct MITM (Man in the Middle) attacks and force a client and a server to negotiate the SSL 2.0 protocol instead of SSL 3.0 or TLS 1.0.
Credits
Vulnerability reported by Yutaka Oiwa
ChangeLog
2005-10-11 : Initial release
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