CVE-2021-29415
Severity Score
5.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
The elliptic curve cryptography (ECC) hardware accelerator, part of the ARM® TrustZone® CryptoCell 310, contained in the NordicSemiconductor nRF52840 through 2021-03-29 has a non-constant time ECDSA implemenation. This allows an adversary to recover the private ECC key used during an ECDSA operation.
El acelerador de hardware elliptic curve cryptography (ECC), parte del ARM® TrustZone® CryptoCell 310, contenido en NordicSemiconductor nRF52840 hasta el 2021-03-29 presenta una implementación ECDSA de tiempo no constante. Esto permite que un adversario recupere la clave ECC privada utilizada durante una operación ECDSA
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-03-29 CVE Reserved
- 2021-05-21 CVE Published
- 2023-03-08 EPSS Updated
- 2024-08-03 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-203: Observable Discrepancy
CAPEC
References (3)
| URL | Tag | Source |
|---|---|---|
| https://eprint.iacr.org/2021/640 | Third Party Advisory | |
| https://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.html | Third Party Advisory | |
| https://www.sit.fraunhofer.de/en/news-events/downloads-services/cve | Not Applicable |
| URL | Date | SRC |
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| URL | Date | SRC |
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| URL | Date | SRC |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Nordicsemi Search vendor "Nordicsemi" | Nrf52840 Firmware Search vendor "Nordicsemi" for product "Nrf52840 Firmware" | <= 2021-03-29 Search vendor "Nordicsemi" for product "Nrf52840 Firmware" and version " <= 2021-03-29" | - |
Affected
| in | Nordicsemi Search vendor "Nordicsemi" | Nrf52840 Search vendor "Nordicsemi" for product "Nrf52840" | - | - |
Safe
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