ET EXPLOIT Realtek SDK - Command Execution/Backdoor Access Inbound (CVE-2021-35394)
Sourceet/open
CreatedJanuary 27, 2023
UpdatedApril 12, 2023
Classificationattempted-admin
alert udp any any -> $HOME_NET 9034 (msg:"ET EXPLOIT Realtek SDK - Command Execution/Backdoor Access Inbound (CVE-2021-35394)"; flow:to_server; content:"orf|3b|"; fast_pattern; startswith; threshold:type limit, count 1, seconds 3600, track by_src; reference:cve,2021-35394; reference:url,unit42.paloaltonetworks.com/realtek-sdk-vulnerability/; reference:url,onekey.com/blog/advisory-multiple-issues-realtek-sdk-iot-supply-chain; classtype:attempted-admin; sid:2044008; rev:2; metadata:affected_product IoT, attack_target Networking_Equipment, created_at 2023_01_27, cve CVE_2021_35394, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Major, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_04_12, reviewed_at 2023_08_21;)
References
Metadata
affected productIoT
attack targetNetworking_Equipment
created at2023_01_27
deploymentInternal
performance impactLow
confidenceHigh
signature severityMajor
tagDescription_Generated_By_Proofpoint_Nexus
updated at2023_04_12
reviewed at2023_08_21
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