CVE-2021-3011 Detail

Current Description

An electromagnetic-wave side-channel issue was discovered on NXP SmartMX / P5x security microcontrollers and A7x secure authentication microcontrollers, with CryptoLib through v2.9. It allows attackers to extract the ECDSA private key after extensive physical access (and consequently produce a clone). This was demonstrated on the Google Titan Security Key, based on an NXP A7005a chip. Other FIDO U2F security keys are also impacted (Yubico YubiKey Neo and Feitian K9, K13, K21, and K40) as well as several NXP JavaCard smartcards (J3A081, J2A081, J3A041, J3D145_M59, J2D145_M59, J3D120_M60, J3D082_M60, J2D120_M60, J2D082_M60, J3D081_M59, J2D081_M59, J3D081_M61, J2D081_M61, J3D081_M59_DF, J3D081_M61_DF, J3E081_M64, J3E081_M66, J2E081_M64, J3E041_M66, J3E016_M66, J3E016_M64, J3E041_M64, J3E145_M64, J3E120_M65, J3E082_M65, J2E145_M64, J2E120_M65, J2E082_M65, J3E081_M64_DF, J3E081_M66_DF, J3E041_M66_DF, J3E016_M66_DF, J3E041_M64_DF, and J3E016_M64_DF).


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  4.2 MEDIUM
Vector:  CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N


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Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://ninjalab.io/a-side-journey-to-titan/ Third Party Advisory 
https://ninjalab.io/wp-content/uploads/2021/01/a_side_journey_to_titan.pdf Exploit  Technical Description  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-203 Observable Differences in Behavior to Error Inputs cwe source acceptance level NIST  

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Change History

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Quick Info

CVE Dictionary Entry:
CVE-2021-3011
NVD Published Date:
01/07/2021
NVD Last Modified:
01/20/2021
Source:
MITRE