""ET EXPLOIT CHIYU IoT Devices - Denial of Service""
SID: 2033362
Revision: 2
Class Type: denial-of-service
Metadata: affected_product IoT, attack_target Client_Endpoint, created_at 2021_07_19, cve CVE_2021_31642, deployment Perimeter, signature_severity Major, updated_at 2021_07_19
Reference:
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: $HTTP_PORTS
Destination Network: $HOME_NET
Destination Port: any
Flow: established,to_server
Contents:
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Value: "GET"
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Value: "/if.cgi?redirect=AccLog.htm" Depth: 27
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Value: "&type=go_log_page&page=2781000"
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Value: "/AccLog.htm|0d 0a|"
Within:
PCRE: "/^Referer\x3a\x20[^\r\n]+\/AccLog.htm/Hmi"
Special Options:
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http_method
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http_uri
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fast_pattern
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http_uri
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http_header