Malicious Cisco SD-WAN Tenant List Upload Script Execution (via process_creation)

ATT&CK techniques

Initial Access → Priv Esc

Recon
Resource Dev
Initial Access
- T1190Exploit Public-Facing Application
Execution
Persistence
Priv Esc
- T1068Exploitation for Privilege Escalation
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects execution of the vconfd_script_upload_tenant_list.sh helper script recorded during exploitation of Cisco Catalyst SD-WAN Manager (CVE-2026-20245), where the crafted tenant CSV was processed to append a rogue root account to system files. Adversaries trigger this internal script as part of the privilege escalation chain, so its appearance in logs indicates the vulnerability was exercised.

Reporting behind it

Related detections9 linkedT1190 — drag to rearrange

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Malicious Cisco SD-WAN Tenant List Upload Script Execution (via process_creation)

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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