### [CVE-2013-1740](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1740) ![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue) ![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue) ![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen) ### Description The ssl_Do1stHandshake function in sslsecur.c in libssl in Mozilla Network Security Services (NSS) before 3.15.4, when the TLS False Start feature is enabled, allows man-in-the-middle attackers to spoof SSL servers by using an arbitrary X.509 certificate during certain handshake traffic. ### POC #### Reference - http://seclists.org/fulldisclosure/2014/Dec/23 - http://seclists.org/fulldisclosure/2014/Dec/23 - http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html - http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html - http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html - http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html - http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html - http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html - http://www.oracle.com/technetwork/topics/security/cpuoct2014-1972960.html - http://www.oracle.com/technetwork/topics/security/cpuoct2014-1972960.html - http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html - http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html - http://www.vmware.com/security/advisories/VMSA-2014-0012.html - http://www.vmware.com/security/advisories/VMSA-2014-0012.html #### Github No PoCs found on GitHub currently.