Overview
- Description
- An information leak was discovered on Yubico YubiKey 5 NFC devices 5.0.0 to 5.2.6 and 5.3.0 to 5.3.1. The OTP application allows a user to set optional access codes on OTP slots. This access code is intended to prevent unauthorized changes to OTP configurations. The access code is not checked when updating NFC specific components of the OTP configurations. This may allow an attacker to access configured OTPs and passwords stored in slots that were not configured by the user to be read over NFC, despite a user having set an access code. (Users who have not set an access code, or who have not configured the OTP slots, are not impacted by this issue.)
- Source
- cve@mitre.org
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 5.3
- Impact score
- 3.6
- Exploitability score
- 1.6
- Vector string
- CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- Severity
- MEDIUM
CVSS 2.0
- Type
- Primary
- Base score
- 2.9
- Impact score
- 2.9
- Exploitability score
- 5.5
- Vector string
- AV:A/AC:M/Au:N/C:P/I:N/A:N
Weaknesses
- nvd@nist.gov
- CWE-862
Social media
- Hype score
- Not currently trending
Configurations
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{
"negate": false,
"cpeMatch": [
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"matchCriteriaId": "4FC63B85-292F-47E0-8F6B-B937CDBDC6DF",
"versionEndIncluding": "5.2.6",
"versionStartIncluding": "5.0.0"
},
{
"criteria": "cpe:2.3:o:yubico:yubikey_5_nfc_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D2514912-868E-4C6E-93DE-1527D88560BB",
"versionEndIncluding": "5.3.1",
"versionStartIncluding": "5.3.0"
}
],
"operator": "OR"
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"operator": "AND"
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