Abstract:

Security vulnerability is the lifeline of the study of security issues, and it is the core issue of network and information security. Security vulnerabilities caused by information leakage, loss of money and other issues become more serious. How to find loopholes, repair vulnerabilities, strengthen defense and other issues becomes a hot area of security research. This paper uses network vulnerability scanning device to scanning the network protocol, and then reverse analysis of the abnormal situation to find the vulnerability. This paper proposes a security evaluation mechanism to assess the safety of network protocol. Finally, this paper gets the score of security protocol. Through the study of this paper, the safety factor of safety hidden danger can be reflected by the total safety factor, and the accurate evaluation of the real security performance of the network equipment can be realized. According to the total safety factor of the network equipment, the equipment safety is divided into high, medium and low. Through the security level of the equipment used in different network environment, it can greatly reduce the occurrence of network security incidents. It has great significance to protect the network security.

Key words: network security, fuzzing test, network protocol, security score