ET WEB_SPECIFIC_APPS Possible ZOHO ManageEngine ADSelfService Captcha Bypass Attempt

alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS Possible ZOHO ManageEngine ADSelfService Captcha Bypass Attempt";
    flow:established,to_server;
    http.method;
    content:"POST"; nocase;
    http.uri;
    content:"/accounts/ValidateAnswers?methodToCall=validateAll"; nocase; fast_pattern;
    http.request_body;
    content:"&Hide_Captcha=0"; nocase;
    content:"&LOGIN_NAME="; nocase; distance:0;
    content:"&quesList="; nocase; distance:0;
    reference:url,www.coresecurity.com/content/zoho-manageengine-vulnerabilities;
    reference:cve,2010-3272;
    classtype:web-application-attack;
    sid:2012979; rev:4;
    metadata:created_at 2011_06_09, cve CVE_2010_3272, confidence Medium, signature_severity Major, updated_at 2020_11_06;
)