Kerberos ticket-cache theft
Credential cache files stolen from Linux/macOS to reuse sessions
categoryIdentity, authentication and credential attacksseverityHighdetectabilityMediumlabnot yet measured
Example: Akira
Classification
20 values: 13 reviewed, 6 imported, 1 derived. What do these mean?
Exploitability
| Attack vector | Credential attacks |
|---|---|
| Reach (CVSS) | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Attacker skill required | Low |
| Resources required | Low |
| Likelihood / prevalence | Medium |
| Maturity | Established |
Impact & scope
| Severity | High |
|---|---|
| Impact | Confidentiality |
| Platform | LinuxmacOS |
| Environment | On-premises |
| Target asset class | EndpointIdentity |
| Kill-chain phase (tactic) | Credential Access |
Detection & telemetry
| Detectability | Medium |
|---|---|
| Data sources (ATT&CK data components) | File AccessProcess Creation |
Detection & response
Mitigated by 13
- M1043 attack-mitigation
- M1047 attack-mitigation
D3-ANCId3fendD3-CCSAd3fendD3-CHd3fendD3-CRd3fendD3-CROd3fendD3-CTSd3fendD3-DUCd3fendD3-MFAd3fendD3-RICd3fendD3-TBd3fendD3-TBAd3fend
Detected by 1
- DET0024 attack-detection-strategy
Attack relationships
- Parent: Constrained delegation / S4U abuse
- Parent: Resource-based constrained delegation (RBCD)
- Parent: Unconstrained delegation abuse
Framework references
- Primary source: https://attack.mitre.org/techniques/T1558/
- attack: T1558.005 (primary)
Evidence & sources
- ev-0001 (Cyber Attack Taxonomy) — Name, definition and Example/ID taken verbatim from the 'Identity, authentication and credential attacks' table, line 327 of Cyber-Attack-Taxonomy.md
- ev-0002 (MITRE Enterprise ATT&CK v19.2 (STIX 2.1)) — ATT&CK usage prevalence: 1 groups/software/campaigns reference this technique (ATT&CK enterprise v19.2)