ET EXPLOIT Possible iOS MobileMail OOB Write/Heap Overflow Exploit Email (Inbound)

Query · suricata

flow:established,to_server;
content:"AAAAAAAA";
content:"AAAAATEy";
content:"EA";
pcre:"/^(?:\\r\\n|\x0d\x0a)AABI/R";
content:"$|0e ce a0 d4 c7 cb 08|";
content:"T8hlGOo9";
content:"OKl2N";
pcre:"/^(?:\\r\\n|\x0d\x0a)C/R";
content:!"|0d 0a|/9j/4S";
Raw source ET EXPLOIT Possible iOS MobileMail OOB Write/Heap Overflow Exploit Email (Inbound) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert smtp $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET EXPLOIT Possible iOS MobileMail OOB Write/Heap Overflow Exploit Email (Inbound)";
    flow:established,to_server;
    content:"AAAAAAAA";
    content:"AAAAATEy";
    content:"EA";
    pcre:"/^(?:\\r\\n|\x0d\x0a)AABI/R";
    content:"$|0e ce a0 d4 c7 cb 08|";
    content:"T8hlGOo9";
    content:"OKl2N";
    pcre:"/^(?:\\r\\n|\x0d\x0a)C/R";
    content:!"|0d 0a|/9j/4S";
    reference:url,blog.zecops.com/vulnerabilities/unassisted-ios-attacks-via-mobilemail-maild-in-the-wild/;
    classtype:attempted-admin;
    sid:2030006; rev:3;
    metadata:attack_target Mobile_Client, created_at 2020_04_23, deployment Perimeter, confidence Medium, signature_severity Major, updated_at 2020_05_01;
)

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