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RTT· red team

RTT · red team

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Techniques›Lateral Movement›MSSQL Linked Server Abuse

Lateral Movement

MSSQL Linked Server Abuse

T1021 · MITRE ATT&CK

Use SQL Server linked-server definitions and login mappings to identify reachable remote database instances and, when the mapped account and server options permit, execute SQL remotely. If xp_cmdshell is enabled and the remote security context may execute it, the destination SQL Server can start an operating-system command under its service account for sysadmin/CONTROL SERVER contexts or its configured xp_cmdshell proxy account for permitted non-sysadmin users. This is linked-service abuse and configuration/permission dependent; it does not necessarily exploit a software vulnerability.

ArtifactsRESTRICTED_ACCESS_BLUR_MARKER

Steps1

CategoryDatabase Client Abuse

SourceExternal

Discuss in Advisor

Walkthrough

Step 1

RESTRICTED_ACCESS_BLUR_MARKER

RESTRICTED_ACCESS_BLUR_MARKER

Requirements: ALL(RESTRICTED_ACCESS_BLUR_MARKER)

Check before starting: RESTRICTED_ACCESS_BLUR_MARKER

Coverage Gap: No catalog tool command currently produces this step's declared outcomes.

Detection signal

Detection 01

RESTRICTED_ACCESS_BLUR_MARKER

Mitigations

Mitigation 01

RESTRICTED_ACCESS_BLUR_MARKER

OPSEC notes

RESTRICTED_ACCESS_BLUR_MARKER

References

Extended details

RESTRICTED_ACCESS_BLUR_MARKER