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Overview
Researchers at the 草榴社区 Cybersecurity Research Center (CyRC) have discovered a vulnerability affecting availability in the IKEA TR?DFRI smart lighting system. A single malformed IEEE 802.15.4 (Zigbee) frame makes the TR?DFRI gateway unresponsive, such that connected lighting cannot be controlled with the IKEA Home Smart app and TR?DFRI remote control.
The malformed Zigbee frame is an unauthenticated broadcast message, which means all vulnerable devices within radio range are affected.
To recover from this attack, a user could manually power cycle the gateway. However, an attacker could reproduce the attack at any time.
CVE-2022-39065 is related to another availability vulnerability that was recently discovered in the IKEA TR?DFRI smart lighting system (CVE-2022-39064). Read our latest blog post to learn more.
Affected devices
IKEA Tr?dfri Gateway type E1526 version 1.17.44 and earlier
Impact
CVSS 3.1 base score: 6.5
CVSS 3.1 vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Remediation
Upgrade the gateway software to version 1.19.26 or later.
Discovery credit
This vulnerability was discovered by CyRC researchers Kari Hulkko and Tuomo Untinen using the Defensics? fuzz testing tool.
Timeline
- June 17, 2021: Initial disclosure to Ikea
- October 29, 2021: Ikea confirms a fix will be produced for the vulnerability
- February 16, 2022: Ikea releases a fix for the vulnerability
- October 5, 2022: 草榴社区 publishes advisory
About CVSS
FIRST.Org, Inc (FIRST) is a non-profit organization based out of US that owns and manages CVSS. It is not required to be a member of FIRST to utilize or implement CVSS but FIRST does require any individual or organization give appropriate attribution while using CVSS. FIRST also states that any individual or organization that publishes scores follow the guideline so that anyone can understand how the score was calculated.
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