Vulnerability Description
Yubico YubiKey 5 Series devices with firmware before 5.7.0 and YubiHSM 2 devices with firmware before 2.4.0 allow an ECDSA secret-key extraction attack (that requires physical access and expensive equipment) in which an electromagnetic side channel is present because of a non-constant-time modular inversion for the Extended Euclidean Algorithm, aka the EUCLEAK issue. Other uses of an Infineon cryptographic library may also be affected.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Yubico | Yubikey 5C Nfc Firmware | < 5.7 |
| Yubico | Yubikey 5C Nfc | - |
| Yubico | Yubikey 5 Nfc Firmware | < 5.7 |
| Yubico | Yubikey 5 Nfc | - |
| Yubico | Yubikey 5C Firmware | < 5.7 |
| Yubico | Yubikey 5C | - |
| Yubico | Yubikey 5 Nano Firmware | < 5.7 |
| Yubico | Yubikey 5 Nano | - |
| Yubico | Yubikey 5C Nano Firmware | < 5.7 |
| Yubico | Yubikey 5C Nano | - |
| Yubico | Yubikey 5Ci Firmware | < 5.7 |
| Yubico | Yubikey 5Ci | - |
| Yubico | Yubikey 5 Nfc Fips Firmware | < 5.7 |
| Yubico | Yubikey 5 Nfc Fips | - |
| Yubico | Yubikey 5C Nfc Fips Firmware | < 5.7 |
| Yubico | Yubikey 5C Nfc Fips | - |
| Yubico | Yubikey 5C Fips Firmware | < 5.7 |
| Yubico | Yubikey 5C Fips | - |
| Yubico | Yubikey 5 Nano Fips Firmware | < 5.7 |
| Yubico | Yubikey 5 Nano Fips | - |
Related Weaknesses (CWE)
References
- https://arstechnica.com/security/2024/09/yubikeys-are-vulnerable-to-cloning-attaPress/Media Coverage
- https://news.ycombinator.com/item?id=41434500Issue Tracking
- https://ninjalab.io/eucleak/Third Party Advisory
- https://ninjalab.io/wp-content/uploads/2024/09/20240903_eucleak.pdfTechnical Description
- https://support.yubico.com/hc/en-us/articles/15705749884444MitigationThird Party Advisory
- https://www.yubico.com/support/security-advisories/ysa-2024-03/Vendor Advisory
FAQ
What is CVE-2024-45678?
CVE-2024-45678 is a vulnerability with a CVSS score of 4.2 (MEDIUM). Yubico YubiKey 5 Series devices with firmware before 5.7.0 and YubiHSM 2 devices with firmware before 2.4.0 allow an ECDSA secret-key extraction attack (that requires physical access and expensive equ...
How severe is CVE-2024-45678?
CVE-2024-45678 has been rated MEDIUM with a CVSS base score of 4.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-45678?
Check the references section above for vendor advisories and patch information. Affected products include: Yubico Yubikey 5C Nfc Firmware, Yubico Yubikey 5C Nfc, Yubico Yubikey 5 Nfc Firmware, Yubico Yubikey 5 Nfc, Yubico Yubikey 5C Firmware.