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

SID: 2034808Rev: 16 views
History
Sourceet/open
CreatedDecember 20, 2021
UpdatedDecember 20, 2021
Classificationattempted-admin
alert tcp any any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET HUNTING Possible Apache log4j RCE Attempt - Any Protocol (lower TCP Bypass) (CVE-2021-44228)"; flow:established,to_server; content:"|24 7b|lower|3a|j"; nocase; fast_pattern; content:"n"; distance:0; within:12; content:"d"; distance:0; within:12; content:"i"; distance:0; within:12; reference:cve,2021-44228; classtype:attempted-admin; sid:2034808; rev:1; metadata:created_at 2021_12_20, cve CVE_2021_44228, confidence Medium, signature_severity Major, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_12_20;)

References

cve2021-44228

Metadata

created at2021_12_20
confidenceMedium
signature severityMajor
tagDescription_Generated_By_Proofpoint_Nexus
updated at2021_12_20

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