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.
References
| Link | Resource |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-brcm-mxc-jul2021-26LqUZUh | Vendor Advisory |
Configurations
Configuration 1 (hide)
|
History
02 Aug 2021, 15:38
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : 4.6
v3 : 6.8 |
| CWE | CWE-119 | |
| References | (MISC) https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-brcm-mxc-jul2021-26LqUZUh - Vendor Advisory | |
| CPE | cpe:2.3:o:cisco:ip_phone_8800_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:ip_phone_8811_with_multiplatform_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:ip_phone_8851_with_multiplatform_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:wireless_ip_phone_8821_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:ip_phone_8845_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:ip_phone_8811_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:ip_phone_8800_series_with_multiplatform_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:ip_phone_8851_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:ip_phone_8861_with_multiplatform_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:ip_phone_8865_with_multiplatform_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:ip_phone_8845_with_multiplatform_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:ip_phone_8865_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:ip_phone_8841_with_multiplatform_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:ip_phone_8841_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:cisco:ip_phone_8861_firmware:*:*:*:*:*:*:*:* |
22 Jul 2021, 17:22
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2021-07-22 17:15
Updated : 2024-02-04 21:47
NVD link : CVE-2021-33478
Mitre link : CVE-2021-33478
CVE.ORG link : CVE-2021-33478
JSON object : View
Products Affected
cisco
- ip_phone_8851_with_multiplatform_firmware
- ip_phone_8845_with_multiplatform_firmware
- ip_phone_8800_series_with_multiplatform_firmware
- ip_phone_8845_firmware
- ip_phone_8811_firmware
- wireless_ip_phone_8821_firmware
- ip_phone_8811_with_multiplatform_firmware
- ip_phone_8865_with_multiplatform_firmware
- ip_phone_8841_firmware
- ip_phone_8861_with_multiplatform_firmware
- ip_phone_8861_firmware
- ip_phone_8865_firmware
- ip_phone_8841_with_multiplatform_firmware
- ip_phone_8851_firmware
- ip_phone_8800_firmware
CWE
CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer