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CVE-2014-3511

Description

The ssl23_get_client_hello function in s23_srvr.c in OpenSSL 1.0.1 before 1.0.1i allows man-in-the-middle attackers to force the use of TLS 1.0 by triggering ClientHello message fragmentation in communication between a client and server that both support later TLS versions, related to a "protocol downgrade" issue.

POC

Reference

- http://www.huawei.com/en/security/psirt/security-bulletins/security-advisories/hw-372998.htm

- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05150888

- https://kc.mcafee.com/corporate/index?page=content&id=SB10084

Github

- https://github.com/ARPSyndicate/cvemon

- https://github.com/Samaritin/OSINT

- https://github.com/Ypnose/ahrf

- https://github.com/chnzzh/OpenSSL-CVE-lib

- https://github.com/jumanjihouse/oval

- https://github.com/jumanjihouse/wormhole