ET EXPLOIT Apache log4j RCE Attempt (tcp iiop) (Outbound) (CVE-2021-44228)

SID: 2034787Rev: 20 viewsHistory

Sourceet/open

CreatedDecember 17, 2021

UpdatedDecember 17, 2021

Classificationattempted-admin

alert tcp $HOME_NET any -> any any (msg:"ET EXPLOIT Apache log4j RCE Attempt (tcp iiop) (Outbound) (CVE-2021-44228)"; flow:established,to_server; content:"|24 7b|jndi|3a|iiop|3a 2f 2f|"; nocase; fast_pattern; reference:url,lunasec.io/docs/blog/log4j-zero-day/; reference:cve,2021-44228; classtype:attempted-admin; sid:2034787; rev:2; metadata:attack_target Client_and_Server, created_at 2021_12_17, cve CVE_2021_44228, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag Exploit, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_12_17;)

References

url	lunasec.io/docs/blog/log4j-zero-day/
cve	2021-44228

Metadata

attack targetClient_and_Server

created at2021_12_17

cveCVE-2021-44228

deploymentInternal

confidenceHigh

signature severityMajor

tagDescription_Generated_By_Proofpoint_Nexus

updated at2021_12_17

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