CVE-2020-25082 - Vulnerability Details - OpenCVE

Description

An attacker with physical access to Nuvoton Trusted Platform Module (NPCT75x 7.2.x before 7.2.2.0) could extract an Elliptic Curve Cryptography (ECC) private key via a side-channel attack against ECDSA, because of an Observable Timing Discrepancy.

Published: 2021-08-10

Score: 3.8 Low

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

AND

cpe:2.3:o:nuvoton:npct75x_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:nuvoton:npct75x:-:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2020-17774	An attacker with physical access to Nuvoton Trusted Platform Module (NPCT75x 7.2.x before 7.2.2.0) could extract an Elliptic Curve Cryptography (ECC) private key via a side-channel attack against ECDSA, because of an Observable Timing Discrepancy.

No CVSS v4.0

Attack Vector Physical

Attack Complexity High

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

Access Vector Local

Access Complexity Medium

Authentication None

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.00059.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://www.nuvoton.com/support/product-related-information/security-advisories/sa-002/

History

No history.

Subscriptions

Nuvoton Npct75x Npct75x Firmware

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-08-10T15:28:05.000Z

Updated: 2024-08-04T15:26:09.290Z

Reserved: 2020-09-02T00:00:00.000Z

Link: CVE-2020-25082

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-08-10T17:15:07.087

Modified: 2024-11-21T05:17:13.177

Link: CVE-2020-25082

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-203

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