Products
MCUboot
Source
security-advisories@github.com
Tags
CVE-2024-32883 details
Last Modified : April 26, 2024, 9:15 p.m.
Description
MCUboot is a secure bootloader for 32-bits microcontrollers. MCUboot uses a TLV (tag-length-value) structure to represent the meta data associated with an image. The TLVs themselves are divided into two sections, a protected and an unprotected section. The protected TLV entries are included as part of the image signature to avoid tampering. However, the code does not distinguish which TLV entries should be protected or not, so it is possible for an attacker to add unprotected TLV entries that should be protected. Currently, the primary protected TLV entries should be the dependency indication, and the boot record. An injected dependency value would primarily result in an otherwise acceptable image being rejected. A boot record injection could allow fields in a later attestation record to include data not intended, which could cause an image to appear to have properties that it should not have. As a workaround, disable the boot record functionality.
CVSS Score
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Weakness
Weakness | Name | Description |
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CVSS Data
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
HIGH
Availability Impact
HIGH
Base Score
7.7
Exploitability Score
Impact Score
Base Severity
HIGH
Vector String : CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:H
References
URL | Source |
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https://github.com/mcu-tools/mcuboot/security/advisories/GHSA-m59c-q9gq-rh2j | security-advisories@github.com |