ET EXPLOIT IE Scripting Engine Memory Corruption Vulnerability M2 (CVE-2019-0752)

Query · suricata

flow:established,from_server;
http.stat_code;
content:"200";
file.data;
content:"<script";
content:"document.getelementbyid|28|"; nocase;
content:".scroll"; nocase; fast_pattern;
content:"Set"; nocase;
pcre:"/^\s*(?P<obj>[\w\-]{1,20})\s*=\s*document\.getElementById\(.{1,500}Class\s*(?P<class>[\w\-]{1,20}).{1,500}End\s*Class.{1,500}set\s*(?P=obj)\.scroll((Left|Top)(Max)?|Height|Width)\s*=\s*New\s*(?P=class)/Rsi";
Raw source ET EXPLOIT IE Scripting Engine Memory Corruption Vulnerability M2 (CVE-2019-0752) · Suricata
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Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET EXPLOIT IE Scripting Engine Memory Corruption Vulnerability M2 (CVE-2019-0752)";
    flow:established,from_server;
    http.stat_code;
    content:"200";
    file.data;
    content:"<script";
    content:"document.getelementbyid|28|"; nocase;
    content:".scroll"; nocase; fast_pattern;
    content:"Set"; nocase;
    pcre:"/^\s*(?P<obj>[\w\-]{1,20})\s*=\s*document\.getElementById\(.{1,500}Class\s*(?P<class>[\w\-]{1,20}).{1,500}End\s*Class.{1,500}set\s*(?P=obj)\.scroll((Left|Top)(Max)?|Height|Width)\s*=\s*New\s*(?P=class)/Rsi";
    reference:cve,2019-0752;
    classtype:attempted-user;
    sid:2034578; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2021_12_03, cve CVE_2019_0752, deployment Perimeter, performance_impact Significant, confidence Medium, signature_severity Major, tag Exploit, tag CISA_KEV, updated_at 2021_12_03;
)

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