Security readout for executives and security teams
Plain-English summary
This is an old SGI IRIX local privilege escalation issue. A user who already has access to an affected system could potentially become root through the System Tour removal process. It matters mainly for organizations still operating legacy IRIX 5.x through 6.3 systems.
Executive priority
Treat as urgent only if legacy SGI IRIX systems are still in use. For affected hosts, root compromise risk is serious, but exploitation requires local access and evidence of active exploitation is not provided.
Technical view
Indigo Magic System Tour in the SGI systour package for IRIX 5.x through 6.3 can execute a Trojan horse .exitops program when RemoveSystemTour invokes the inst command. The CVE describes local users gaining root privileges. No CVSS, CWE, patch, or advisory references are included in the provided record.
Likely exposure
Exposure is likely limited to legacy SGI IRIX environments, especially systems running IRIX 5.x through 6.3 with the systour package installed. Modern environments are unlikely to be affected unless they retain historical SGI systems.
Exploitation context
The source describes local exploitation only. An attacker would need local access to the affected IRIX system. The provided sources do not show CISA KEV listing, public exploitation, or a vendor-confirmed patch.
Researcher notes
The public data is sparse: no CVSS, CWE, vendor advisory, or patch reference is present in the provided bundle. The core issue is a local trust-path problem involving .exitops during System Tour removal.
Mitigation direction
- Inventory SGI IRIX systems and identify versions 5.x through 6.3.
- Check whether the systour package is installed on those systems.
- Restrict local shell access to trusted administrators only.
- Consult historical SGI or successor vendor guidance for fixes or safe removal.
- Prioritize decommissioning unsupported IRIX systems where operationally feasible.
Validation and detection
- Confirm whether any IRIX 5.x through 6.3 hosts remain in production.
- Verify presence of Indigo Magic System Tour or systour components.
- Review local user accounts with interactive access.
- Check change records for prior vendor patches or package removal.
- Document compensating controls for any system that cannot be remediated.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-1999-1384 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.