Nozomi Networks has patented a method for verifying network device vulnerabilities using Common Vulnerabilities and Exposures (CVE) entries. The method involves indexing CVE entries, decoding network packets, and matching them with CVE entries to raise alerts. The process includes generating a CVE tree and tokenizing decoded strings for analysis. GlobalData’s report on Nozomi Networks gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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Method for verifying network device vulnerabilities using cve entries
A recently granted patent (Publication Number: US11930033B2) outlines a method for verifying vulnerabilities of network devices using Common Vulnerabilities and Exposures (CVE) entries. The method involves indexing each CVE entry, decoding network packets related to the network device, and matching the decoded string with the indexed CVE entry to raise an alert when a match is found. The indexing process includes generating a CVE tree, identifying vulnerable configuration fields, and extracting sets of vulnerable conditions. The decoding process involves tokenizing the decoded string into n-grams, while the matching process includes a lookup into the CVE tree based on the operator attribute and CPE records.
Furthermore, the patent details additional aspects of the method, such as identifying main operator attributes and nested sets of vulnerable conditions, as well as refining the matching process based on specific criteria. The method also specifies the types of network packets, such as Cisco Discovery Protocol, and the sizes of n-grams used in the process. Additionally, various tags are identified for vulnerable configuration fields, operator attributes, CPE records, and name attributes within the CVE tree. Before tokenizing, the decoded string undergoes normalization by converting uppercase characters to lowercase and replacing certain characters with whitespaces.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
