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A method and device for local area network dns hijacking detection

A local area network and DNS server technology, applied in the electronic field, can solve problems such as the risk of hijacking

Active Publication Date: 2019-07-05
三六零数字安全科技集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Then, if the UE connects to the fake DNS server based on the network configuration dynamically allocated by DHCP, there is a risk of hijacking

Method used

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  • A method and device for local area network dns hijacking detection
  • A method and device for local area network dns hijacking detection
  • A method and device for local area network dns hijacking detection

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Embodiment Construction

[0041] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0042] The embodiment of the present invention provides a method and device for detecting local area network DNS hijacking to detect the risk of local area network DNS hijacking. Please refer to figure 1 , Is a flowchart of a method for detecting local area network DNS hijacking in an embodiment of the present invention, and the method includes:

[0043] S101: Send a dynamic configuration request to a dynamic ...

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Abstract

The present invention provides a method and device for DNS hijacking detection in a local area network. The method includes: sending a dynamic configuration request to a Dynamic Host Configuration Protocol (DHCP) device in the local area network; receiving dynamic configuration information returned by the DHCP, the dynamic configuration information Include gateway address and primary domain name resolution system DNS server address; When the primary DNS server address in the dynamic configuration information is a local area network address, judge the gateway address of the dynamic configuration information and the primary DNS server address of the dynamic configuration information Whether they are consistent; when the gateway address of the dynamic configuration information is inconsistent with the primary DNS server address of the dynamic configuration information, it is determined that there is a risk of LAN DNS hijacking.

Description

Technical field [0001] The invention relates to the field of electronic technology, in particular to a method and device for detecting local area network DNS hijacking. Background technique [0002] A common local area network DNS (Domain Name System) hijacking is that an attacker builds a maliciously acting pseudo DNS server in the local area network and invades the local area network's DHCP (Dynamic Host Configuration Protocol) The device changes the DNS server address assigned by the DHCP device for the UE (User Equipment) to a pseudo DNS server address. Then, if the UE connects to the pseudo DNS server based on the network configuration dynamically allocated by DHCP, there is a risk of hijacking. Summary of the invention [0003] In view of the above problems, the present invention is proposed to provide a method and device for detecting local area network DNS hijacking that overcomes the above problems or at least partially solves the above problems. [0004] The first aspect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L29/12
CPCH04L63/12H04L63/1466H04L63/20H04L61/4511H04L61/5014H04L61/5038
Inventor 刘天张建新高永岗
Owner 三六零数字安全科技集团有限公司