ET EXPLOIT Possible CVE-2015-7547 A/AAAA Record Lookup Possible Forced FallBack(fb set)
Sourceet/open
Fileemerging-exploit.rules
CreatedFebruary 18, 2016
UpdatedMarch 14, 2024
Classificationattempted-user
alert tcp $HOME_NET any -> $EXTERNAL_NET 53 (msg:"ET EXPLOIT Possible CVE-2015-7547 A/AAAA Record Lookup Possible Forced FallBack(fb set)"; flow:established,to_server ; flowbits:set,ET.CVE20157547.primer ; flowbits:noalert; byte_test:2,<,513,0 ; byte_test:1,!&,128,4 ; byte_test:1,!&,64,4 ; byte_test:1,!&,32,4 ; byte_test:1,!&,16,4 ; byte_test:1,!&,8,4 ; content:"|00 01 00 00 00 00 00 00|"; offset:6; depth:8; pcre:"/^(?:.[a-z0-9-]{2,}){2,}\x00\x00(?:\x01|\x1c)/Ri" ; reference:cve,2015-7547 ; classtype:attempted-user; sid:2022546; rev:2; metadata:created_at 2016_02_18, cve CVE_2015_7547, confidence Medium, signature_severity Major, updated_at 2024_03_14;)
References
| cve | 2015-7547 |
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