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TI-2026-70053 Aliases CVE-2026-104117

Missing authorization in illumos ipmgmtd lets users edit IPMP groups

Priority LOW 9CWE-862Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
None · Low · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

illumos-gate commits from a73be61a before e8d3efa1 and listed OmniOS r151 releases before their fixed builds are affected. A missing authorization check (CWE-862) in the ipmgmtd door dispatch lets a local user with low privileges add interfaces to or remove them from persistent IPMP groups. The running configuration is unchanged, but the stored change applies at next boot and may disrupt network connectivity.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

A missing authorization check in the illumos IP management daemon (ipmgmtd) allows a local user to change the persistent IP multipathing (IPMP) configuration. The ipmgmtd door dispatch table in usr/src/cmd/cmd-inet/lib/ipmgmtd/ipmgmt_door.c does not require the solaris.network.interface.config authorization for the IPMGMT_CMD_IPMP_UPDATE command, although its handler, ipmgmt_ipmp_update_handler(), writes to the persistent ipadm configuration when the IPMGMT_PERSIST flag is set. An unprivileged local user can therefore add interfaces to, or remove them from, existing IPMP groups in the stored configuration. The running configuration is not changed; the modification takes effect when the stored configuration is next applied, such as at boot, and may disrupt network connectivity. The flaw has existed since 2021 (illumos-gate commit a73be61a), and affects any illumos distribution prior to illumos-gate commit e8d3efa1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00106 1st percentileScored 2026-11-07
Fix Fixed OmniOS (OmniOS): r151058w, r151056aw, r151054bw

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OmniOSOmniOSr151042 to before r151054; r151058 to before r151058w; r151056 to before r151056aw; r151054 to before r151054bwr151058w, r151056aw, r151054bwPatch availableCNA
  • OmniOS VendorOmniOS Affected r151042 to before r151054; r151058 to before r151058w; r151056 to before r151056aw; r151054 to before r151054bw Fixed in r151058w, r151056aw, r151054bw Patch available CNA

Remediation

Update illumos-gate to commit e8d3efa1 or later. Update OmniOS to r151058w, r151056aw or r151054bw, matching the release branch in use.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA OmniOS (OmniOS) Fixed in r151058w, r151056aw, r151054bw

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    OmniOS r151054, r151054bw and 2 more versions

    7 records Highest priority Priority LOW 7 LOW

    Other records, highest priority first

    • TI-2026-70048 Unreleased file descriptors in illumos nscd exhaust kernel memoryPriority LOW 29
    • TI-2026-70046 Reachable assertion in illumos bhyve lets guest panic hostPriority LOW 29
    • TI-2026-70051 Stack buffer overflow in illumos reparsed lets local users crash itPriority LOW 23
    Show all 7 records →

Timeline

  1. 2026-10-09 Threatist record created from CVE-2026-104117

References

Patch 1

Other 2

  • TI-2012-00210 The x86-64 kernel system-call functionality in Xen 4.1.2 and earlier, as used in Citrix… CVSS 2.0HIGH 7.2
  • TI-2021-19340 An issue was discovered in illumos before f859e7171bb5db34321e45585839c6c3200ebb90… CVSS 3.1MEDIUM 5.5
  • TI-2026-12978 SCTP needs to better-check INIT ACK chunk parameters CVSS 4.0CRITICAL 9.1
  • TI-2020-16788 An issue was discovered in illumos before 2020-10-22, as used in OmniOS before r151030by… CVSS 3.1CRITICAL 9.8
  • TI-2016-05624 Improper input validation in illumos osnet-incorporation CVSS 3.0HIGH 8.6
  • TI-2019-06998 An issue was discovered in Illumos in Nexenta NexentaStor 4.0.5 and 5.1.2, and other… CVSS 3.1HIGH 8.1
See all 15 →

Sources

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