Description
The TrustZone implementation in certain Broadcom MediaxChange firmware could allow an unauthenticated, physically proximate attacker to achieve arbitrary code execution in the TrustZone Trusted Execution Environment (TEE) of an affected device. This, for example, affects certain Cisco IP Phone and Wireless IP Phone products before 2021-07-07. Exploitation is possible only when the attacker can disassemble the device in order to control the voltage/current for chip pins.
Published: 2021-07-22
Score: 6.8 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2021-20181 The TrustZone implementation in certain Broadcom MediaxChange firmware could allow an unauthenticated, physically proximate attacker to achieve arbitrary code execution in the TrustZone Trusted Execution Environment (TEE) of an affected device. This, for example, affects certain Cisco IP Phone and Wireless IP Phone products before 2021-07-07. Exploitation is possible only when the attacker can disassemble the device in order to control the voltage/current for chip pins.
History

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Subscriptions

Cisco Ip Phone 8800 Firmware Ip Phone 8800 Series With Multiplatform Firmware Ip Phone 8811 Firmware Ip Phone 8811 With Multiplatform Firmware Ip Phone 8841 Firmware Ip Phone 8841 With Multiplatform Firmware Ip Phone 8845 Firmware Ip Phone 8845 With Multiplatform Firmware Ip Phone 8851 Firmware Ip Phone 8851 With Multiplatform Firmware Ip Phone 8861 Firmware Ip Phone 8861 With Multiplatform Firmware Ip Phone 8865 Firmware Ip Phone 8865 With Multiplatform Firmware Wireless Ip Phone 8821 Firmware
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-03T23:50:42.938Z

Reserved: 2021-05-20T00:00:00.000Z

Link: CVE-2021-33478

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-07-22T17:15:09.510

Modified: 2024-11-21T06:08:54.437

Link: CVE-2021-33478

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses