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Method, system and storage medium for overflow vulnerability detection based on format heterogeneity

A vulnerability detection and heterogeneous technology, applied in the field of network security, can solve problems such as occupation of resources and occupation of manpower

Active Publication Date: 2022-01-07
HARBIN ANTIY TECH
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In the past inspections, the behavioral characteristics and information of the discovered vulnerabilities will be stored in the vulnerability database, and the vulnerability database needs to be continuously updated and maintained, which takes up resources and manpower

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  • Method, system and storage medium for overflow vulnerability detection based on format heterogeneity
  • Method, system and storage medium for overflow vulnerability detection based on format heterogeneity

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Embodiment Construction

[0035] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the present invention will be further detailed below in conjunction with the accompanying drawings illustrate.

[0036] An overflow vulnerability detection method based on format heterogeneity, such as figure 1 shown, including:

[0037] S101: Capture the network data packet, and restore the network data packet to a file;

[0038] S102: Classify the restored files according to file types, and divert files of the same type to the same detection branch;

[0039] S103: extracting structural features of files in each detection branch;

[0040] S104: Calculate the degree of difference between the corresponding structural features of each file through a feature extraction algorithm;

[00...

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Abstract

The present invention proposes an overflow vulnerability detection method, system and storage medium based on format heterogeneity. The method obtains network data packets and restores them to files, divides the files into various detection branches according to their file types, and extracts the data from each detection branch. Through the calculation of the difference degree, the target detection features are determined, and the features in each target detection feature are clustered and analyzed, and the files corresponding to a small part of the features obtained are files with abnormal structures. The method of the present invention can quickly distinguish a small part of abnormal files in a large number of files through a clustering algorithm for structural features, and only conduct in-depth detection for abnormal files, effectively improving the detection efficiency of overflow vulnerabilities, and has inspiration for unknown overflow vulnerabilities type detection capability.

Description

technical field [0001] The invention relates to the technical field of network security, in particular to an overflow vulnerability detection method, system and storage medium based on format heterogeneity. Background technique [0002] With the development of the Internet and the rapid growth of network information, it is becoming more and more important to protect the security of networks and hosts. Vulnerabilities can enable attackers to access or damage the system without authorization, so how to discover and deal with vulnerabilities has become the main focus of researchers. [0003] At this stage, the analysis of overflow vulnerabilities mostly relies on manual work. The large number of overflow vulnerabilities and the different judgment methods for different types of overflows lead to a decrease in the efficiency of manual analysis. There are few automated solutions that can complete the detection. [0004] The existing vulnerability detection method is to compare th...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/57
CPCG06F21/577
Inventor 刘桂玲童志明何公道肖新光
Owner HARBIN ANTIY TECH