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    CVE-2020-11683

    A timing side channel was discovered in AT91bootstrap before 3.9.2. It can be exploited by attackers with physical access to forge CMAC values and subsequently boot arbitrary code on an affected system.

    Published:Sep 14, 2020
    Last Modified:Nov 21, 2024
    EPS:Sep 14, 2020
    EPSS Score:0.00058
    CVSS Score:6.8

    Affected Products

    Vendor
    Linux4sam
    Product
    At91bootstrap

    Exploits

    https://labs.f-secure.com/advisories/microchip-at91bootstrap/https://labs.f-secure.com/advisories/microchip-at91bootstrap/

    Common Weakness Enumeration

    CWE-203 Observable Discrepancy

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-189 Black Box Reverse Engineering

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High