ET WEB_SPECIFIC_APPS VMware Workspace ONE Access OAuth2TokenResourceController ACS Authentication Bypass (CVE-2022-22956)

alert http any any -> $HOME_NET any (
    msg:"ET WEB_SPECIFIC_APPS VMware Workspace ONE Access OAuth2TokenResourceController ACS Authentication Bypass (CVE-2022-22956)";
    flow:established,to_server;
    http.uri;
    content:"/SAAS/API/1.0/REST/oauth2/generateActivationToken/Service__OAuth2Client"; fast_pattern;
    http.method;
    content:"POST";
    reference:url,srcincite.io/blog/2022/08/11/i-am-whoever-i-say-i-am-infiltrating-vmware-workspace-one-access-using-a-0-click-exploit.html;
    reference:cve,2022-22956;
    classtype:web-application-attack;
    sid:2065404; rev:1;
    metadata:affected_product VMware, attack_target Server, tls_state TLSDecrypt, created_at 2025_10_27, cve CVE_2022_22956, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_10_27, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;
    target:dest_ip;
)