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Potential Redis CONFIG SET SSH Authorized Key Injection

This rule detects attempts to abuse Redis CONFIG SET commands to inject SSH authorized keys on Linux hosts. Attackers targeting unauthenticated Redis instances issue CONFIG SET dir to an SSH directory such as…

Description

This rule detects attempts to abuse Redis CONFIG SET commands to inject SSH authorized keys on Linux hosts. Attackers targeting unauthenticated Redis instances issue CONFIG SET dir to an SSH directory such as /root/.ssh, set the filename to authorized_keys via CONFIG SET dbfilename, write an attacker-controlled public key via SET, and call BGSAVE to flush it to disk, establishing persistent SSH access as root.

Detection logic

Its licence does not clear it for publishing here

Sunturai publishes a detection's own text where the licence it arrived under has been reviewed and permits it, and Elastic License 2.0 has not. The query as its source wrote it, its canonical form and the hash that pins this revision are in the workspace record.

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Detection requirements

Platform
ContainersESXiIaaSIdentity ProviderLinuxmacOSNetwork DevicesOffice SuiteSaaSWindows

The rule states no platform. This is derived from the 2 ATT&CK techniques it maps to.

Log source category
event_index

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