Possible MOVEit Transfer SSRF via MOVEitISAPI action m2

ATT&CK techniques

Initial Access → C2

Recon
Resource Dev
Initial Access
- T1190Exploit Public-Facing Application
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1071.001Web Protocols
Exfiltration
Impact

What it detects

This rule detects requests to MOVEitISAPI.dll with action=m2, the server-side request forwarding primitive identified through patch diffing by Assetnote for CVE-2023-34362. The m2 action proxies requests toward internal-only MOVEit endpoints and is a core step in reaching the vulnerable machine2 logic. Detecting this action on the ISAPI extension highlights probing or exploitation of the internal request path.

Reporting behind it

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Possible MOVEit Transfer SSRF via MOVEitISAPI action m2

Pivot detection · T1190 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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