Emerging Threathighstable

Pulse Connect Secure RCE Attack CVE-2021-22893

This rule detects exploitation attempts using Pulse Connect Secure(PCS) vulnerability (CVE-2021-22893)

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Sittikorn SCreated Tue Jun 29Updated Mon Jan 025525edac-f599-4bfd-b926-3fa69860e7662021

Emerging Threat

Active Threat

Developed to detect an active or emerging threat. Prioritize investigation of any alerts and correlate with threat intelligence.

Log Source

Web Server Log

CategoryWeb Server Log← raw: webserver

HTTP access logs from web servers capturing request paths, methods, and status codes.

Detection Logic

detection:
    selection1:
        cs-uri-query|contains:
            - '/dana-na/auth/'
            - '/dana-ws/'
            - '/dana-cached/'
    selection2:
        cs-uri-query|contains:
            - '?id='
            - '?token='
            - 'Secid_canceltoken.cgi'
            - 'CGI::param'
            - 'meeting'
            - 'smb'
            - 'namedusers'
            - 'metric'
    condition: all of selection*