Malicious Shell Execution via Foomatic-rip Print Filter through CUPS Exploit

ATT&CK techniques

Execution

Recon
Resource Dev
Initial Access
Execution
- T1059.004Unix Shell
- T1203Exploitation for Client Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects the foomatic-rip CUPS print filter spawning a shell interpreter such as bash or sh. The CUPS foomatic-rip vulnerability chain lets an attacker-supplied printer inject commands through the FoomaticRIPCommandLine field, yielding a reverse shell and follow-on CoinMiner deployment. Execution of a shell as a child of foomatic-rip indicates remote command injection.

Reporting behind it

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Malicious Shell Execution via Foomatic-rip Print Filter through CUPS Exploit

Pivot detection · T1059.004 · 9 related

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