ET HUNTING JavaScript Engine JIT Forcing Observed - Investigate Possible Exploitation M3
Sourceet/open
CreatedNovember 18, 2021
UpdatedDecember 4, 2024
Classificationunknown
alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET HUNTING JavaScript Engine JIT Forcing Observed - Investigate Possible Exploitation M3"; flow:established,to_client; http.stat_code; content:"200"; file.data; pcre:"/\s(?P<jit_func>[\w\-\.]{1,30})\s*=\s*.{1,500}(?P<count_var>[\w\-\.]{1,30})\s*=\s*(0x[a-f0-9]{3,12}|\d{4,10}).{1,500}for\s*\(var\s*(?P<counter>[\w\-]{1,20})\s*=\s*\d+\s*\x3b\s*(?P=counter)\s*<\s*(?P=count_var)\s*\x3b\s*\+{2}(?P=counter)\s*\)\s*(?P=jit_func)\(/si"; classtype:unknown; sid:2058053; rev:2; metadata:created_at 2021_11_18, confidence Medium, signature_severity Major, tag possible_exploitation, updated_at 2024_12_04, former_sid 2850490;)
Metadata
created at2021_11_18
confidenceMedium
signature severityMajor
tagpossible_exploitation
updated at2024_12_04
former sid2850490
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