Techniques › T1199 › AN1345
AN1345 Analytic 1345
Linux · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Behavioral chain: (1) sshd or federated SSO logins from third-party networks or identities; (2) rapid sudo/su privilege elevation; (3) access to sensitive paths or east-west SSH. Correlate auth logs, process execution, and network flows.</p>
- Detects
- T1199 Trusted Relationship
- Part of
- DET0488 Detect abuse of Trusted Relationships (third-party and delegated admin access)
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 |
|---|---|---|
| auditd:SYSCALL | execve,socket,connect,openat | DC0088 Logon Session Metadata |
| linux:syslog | Accepted publickey/password for * from * port * ssh2 | DC0067 Logon Session Creation |
| NSM:Flow | ssh connections originating from third-party CIDRs | DC0085 Network Traffic Content |
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 |
|---|---|
ThirdPartyUsers | POSIX accounts assigned to vendors/partners. |
AllowedJumpHosts | Bastion hosts permitted for third-party access. |
MFAExpected | Flag indicating whether PAM/MFA should be present; used to score risk. |
KEV CVEs whose mapped technique this analytic detects
| CVE | Vendor / product | State |
|---|---|---|
| CVE-2024-53704 | SonicWall SonicOS | Mapped |