CVE intelligence and bounded remediation
CVE-2023-22600 — Inhandnetworks Inrouter302 Firmware security vulnerability
InHand Networks InRouter 302, prior to version IR302 V3.5.56, and InRouter 615, prior to version InRouter6XX-S-V2.3.0.r5542, contain vulnerability CWE-284: Improper Access Control. They allow unauthenticated devices to subscribe to MQTT topics on the same network as the device manager. An unauthorized user who knows of an existing topic name could send and receive messages to and from that topic. This includes the ability to send GET/SET configuration commands, reboot commands, and push firmware updates.
- Severity
- Critical
- CVSS
- 10 (3.1)
- Published
- 2023-01-12
- CISA KEV
- Not currently listed
- Ecosystem
- operating-system
- Weaknesses
- CWE-284
Affected products
- inhandnetworks / inrouter302_firmware
- inhandnetworks / inrouter615-s_firmware
Matched remediation archetype
Authorization bypass, IDOR, and cross-tenant access
This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.
Check exposure
- Map object and action authorization checks across API, UI, batch, import/export, and background-job paths.
- Identify tenant, ownership, role, and policy boundaries for affected resources and administrative operations.
- Use synthetic fixtures to compare intended access matrices without accessing another user's real data.
Remediate safely
- Enforce server-side authorization at each resource access and state transition using the authenticated principal and trusted tenant context.
- Scope data queries by tenant and ownership; treat client-supplied identifiers, roles, and policy claims as untrusted.
- Add deny-by-default policy tests for horizontal and vertical access across every affected transport.
Authoritative sources
Complete CVE record and remediation plan
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