CVE-2020-10135 Bluetooth devices supporting BR/EDR v5.2 and earlier are vulnerable to impersonation attacks

2020-04-1400:00:00

CWE-757

certcc

www.cve.org

5.4 Medium

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

6.5 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

46.5%

JSON

Legacy pairing and secure-connections pairing authentication in Bluetooth BR/EDR Core Specification v5.2 and earlier may allow an unauthenticated user to complete authentication without pairing credentials via adjacent access. An unauthenticated, adjacent attacker could impersonate a Bluetooth BR/EDR master or slave to pair with a previously paired remote device to successfully complete the authentication procedure without knowing the link key.

CNA Affected

[
  {
    "product": "BR/EDR",
    "vendor": "Bluetooth",
    "versions": [
      {
        "lessThanOrEqual": "5.2",
        "status": "affected",
        "version": "5.2",
        "versionType": "custom"
      }
    ]
  }
]