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CVE-2020-10134— Bluetooth devices supporting LE and specific BR/EDR implementations are vulnerable to method confusion attacks

Quick assessment

Affected
Bluetooth LE
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Bluetooth Core v5.2及之前版本中的配对过程存在安全漏洞。攻击者可借助中间人（MITM）攻击利用该漏洞在目标设备上进行任何蓝牙操作。

CVSS 6.3 · Medium EPSS 0.66% · P50

Possible ATT&CK Techniques 2 AI

T1562.001 T1539 · Steal Web Session Cookie
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I. Basic Information for CVE-2020-10134

Vulnerability Information
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Vulnerability Title
Bluetooth devices supporting LE and specific BR/EDR implementations are vulnerable to method confusion attacks
Source: CVE Program / CVE List V5
Vulnerability Description
Pairing in Bluetooth® Core v5.2 and earlier may permit an unauthenticated attacker to acquire credentials with two pairing devices via adjacent access when the unauthenticated user initiates different pairing methods in each peer device and an end-user erroneously completes both pairing procedures with the MITM using the confirmation number of one peer as the passkey of the other. An adjacent, unauthenticated attacker could be able to initiate any Bluetooth operation on either attacked device exposed by the enabled Bluetooth profiles. This exposure may be limited when the user must authorize certain access explicitly, but so long as a user assumes that it is the intended remote device requesting permissions, device-local protections may be weakened.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的类型区分
Source: CVE Program / CVE List V5
Vulnerability Title
Bluetooth Core 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Bluetooth Core v5.2及之前版本中的配对过程存在安全漏洞。攻击者可借助中间人（MITM）攻击利用该漏洞在目标设备上进行任何蓝牙操作。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Bluetooth LE 5.2 ~ 5.2 -

II. Public POCs for CVE-2020-10134

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III. Intelligence Information for CVE-2020-10134

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Vendor Advisories for CVE-2020-10134 (1)

Other References for CVE-2020-10134 (1)

IV. Related Vulnerabilities

Same vendor: Bluetooth
Same weakness: CWE-351

V. Comments for CVE-2020-10134

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