ET HUNTING Possible Apache log4j RCE Attempt - Any Protocol TCP (CVE-2021-44228)

7.0.35.0SID: 2034661Rev: 2Enabled4 views
Sourceet/open
Fileemerging-hunting.rules
CreatedDecember 11, 2021
UpdatedMarch 8, 2024
Classificationmisc-activity
alert tcp any any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET HUNTING Possible Apache log4j RCE Attempt - Any Protocol TCP (CVE-2021-44228)"; flow:established,to_server; content:"|24 7b|jndi|3a|"; nocase; fast_pattern; content:"|3a 2f 2f|"; within:20; reference:cve,2021-44228; classtype:misc-activity; sid:2034661; rev:2; metadata:created_at 2021_12_11, cve CVE_2021_44228, confidence Medium, signature_severity Major, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_08;)

References

cve2021-44228

Metadata

created at2021_12_11
confidenceMedium
signature severityMajor
tagDescription_Generated_By_Proofpoint_Nexus
updated at2024_03_08

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