ET EXPLOIT Xiongmai/HiSilicon DVR - Successful Telnet Opening - Successful CVE-2020-22253 Attempt

Query · suricata

flow:established,to_client;
flowbits:isset,ET.CVE-2020-22253;
flowbits:isset,ET.CVE-2020-22253_stage2;
content:"Open:OK";

Rule dependencies

⚠ Higher-order rule. It fires on other rules' alerts, not on raw events, so it cannot fire on its own. Deploy the rules it depends on too.

Depends on

Raw source ET EXPLOIT Xiongmai/HiSilicon DVR - Successful Telnet Opening - Successful CVE-2020-22253 Attempt · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp-pkt $HOME_NET 9530 -> any any (
    msg:"ET EXPLOIT Xiongmai/HiSilicon DVR - Successful Telnet Opening - Successful CVE-2020-22253 Attempt";
    flow:established,to_client;
    flowbits:isset,ET.CVE-2020-22253;
    flowbits:isset,ET.CVE-2020-22253_stage2;
    content:"Open:OK";
    reference:url,habr.com/en/post/486856/;
    reference:url,vulncheck.com/blog/xiongmai-iot-exploitation;
    reference:url,github.com/tothi/hs-dvr-telnet;
    reference:cve,2020-22253;
    classtype:successful-admin;
    sid:2041648; rev:1;
    metadata:attack_target IoT, created_at 2022_12_02, cve CVE_2020_22253, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_12_02;
)

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