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Method for realizing fuzzing of software on the basis of state protocol

A technology for protocol implementation and fuzz testing, which is applied in software testing/debugging, instrumentation, electrical digital data processing, etc., can solve the problems of insufficient state protocol support, low test coverage, poor test efficiency, etc., and achieve the goal of improving test coverage Effect

Inactive Publication Date: 2011-06-08
NAT UNIV OF DEFENSE TECH
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Problems solved by technology

[0011] However, current fuzzers do not support stateful protocols far enough
State protocols often include handshake, authentication and other processes. If the generation of test cases does not consider state transitions, but adopts the traditional random mutation generation method, then the target program will abandon the subsequent processing in the initial state when processing test cases. Only the first interactive state is tested, and it is difficult for the program under test to enter the subsequent state, resulting in low test coverage and poor test efficiency

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  • Method for realizing fuzzing of software on the basis of state protocol
  • Method for realizing fuzzing of software on the basis of state protocol
  • Method for realizing fuzzing of software on the basis of state protocol

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Embodiment Construction

[0038] The specific implementation manner of the present invention will be described in more detail below in conjunction with the accompanying drawings.

[0039] Step 1), capture the target state protocol to realize the normal interaction flow of the software.

[0040] The status protocol includes network protocols such as FTP and SIP. This embodiment takes the fuzzy test of the FTP server as an example to illustrate the method of the present invention.

[0041] 1.1) Install the normal functional environment of the target program. Enable the FTP server and FTP client to communicate normally, and ensure the normal use of FTP functions such as login, view, download, and upload;

[0042] 1.2) Turn on the network sniffing and packet capture tools, and prepare to capture the normal communication traffic of the target program. Currently commonly used packet capture tools include Wireshark, Tcpdump, etc. These tools can accurately capture network packets of specified interfaces and...

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Abstract

The invention discloses a method for realizing fuzzing of software on the basis of a state protocol. The method comprises the following steps of: 1) acquiring a target state protocol to realize the normal interactive traffic of the software; 2) identifying and extracting a protocol interactive message and a message exchange process from the traffic to finally generate a protocol script file with a certain format; 3) traversing a target program protocol state machine to generate a normal test case ready for mutation; and 4) mutating the normal test case into an abnormal test case, and executing the fuzzing. The method can significantly improve the test coverage rate of the software on the basis of the state protocol by identifying the message and the interactive process of target program normal communication, establishing a state protocol state machine script, and traversing the protocol state machine to generate the test case.

Description

technical field [0001] The invention aims at the safety test and loophole mining of large-scale software, especially the safety test of state protocol implementation software, and can be applied to the safety test of protocol implementation software with high reliability and safety requirements. Background technique [0002] With the in-depth development and wide application of information technology, computer software has penetrated into every corner of people's lives. Software systems have an increasing impact on people's lives and production, and social development and stability are increasingly dependent on various The efficiency, security and stability of the software system. However, while these software systems provide the world with efficient and convenient electronic services and the exchange of massive information and data, the hidden software vulnerabilities are like time bombs, threatening the global economy and society at all times. order and stability. At pre...

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Application Information

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IPC IPC(8): G06F11/36G06F21/00
Inventor 张博锋赖志权吴逸伦乔林波王勇军解培岱李美剑
Owner NAT UNIV OF DEFENSE TECH
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