Techniques › T1090 › AN1233
AN1233 Analytic 1233
Network Devices · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Dynamic or static port forwarding rules added to route traffic through an internal host, or configuration changes to proxy firewall rules not aligned with baselined policy.</p>
- Detects
- T1090 Proxy
- Part of
- DET0445 Detection of Proxy Infrastructure Setup and Traffic Bridging
Log sources and channels
Exactly as MITRE states them in x_mitre_log_source_references. Where a channel is vague, it is vague in the source; kevmap does not tidy it.
| Log source | Channel | Data component |
|---|---|---|
| NSM:Firewall | Policy Change / Rule Update | DC0051 Firewall Rule Modification |
| NSM:Flow | Flow Creation (NetFlow/sFlow) | DC0078 Network Traffic Flow |
| networkdevice:cli | Interface commands | DC0064 Command Execution |
Mutable elements
Parameters MITRE marks as environment-specific. These are the knobs you are expected to tune; they are why an analytic is not a rule.
| Field | Description |
|---|---|
RuleType | Focus on new allow/permit rules with dynamic NAT or port forwarders. |
ChangeUser | Flag any non-admins initiating proxy config changes. |
FlowVolumeDelta | Detect sharp changes in bi-directional traffic patterns. |
KEV CVEs whose mapped technique this analytic detects
| CVE | Vendor / product | State |
|---|---|---|
| CVE-2019-3396 | Atlassian Confluence Server and Data Server | Mapped |
| CVE-2021-22986 | F5 BIG-IP and BIG-IQ Centralized Management | Mapped |
| CVE-2021-26855 | Microsoft Exchange Server | Mapped |