Vulnerability Details CVE-2020-15802
Devices supporting Bluetooth before 5.1 may allow man-in-the-middle attacks, aka BLURtooth. Cross Transport Key Derivation in Bluetooth Core Specification v4.2 and v5.0 may permit an unauthenticated user to establish a bonding with one transport, either LE or BR/EDR, and replace a bonding already established on the opposing transport, BR/EDR or LE, potentially overwriting an authenticated key with an unauthenticated key, or a key with greater entropy with one with less.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.566
EPSS Ranking 98.0%
CVSS Severity
CVSS v3 Score 5.9
CVSS v2 Score 4.3
References
- https://gizmodo.com/bluetooth-unveils-its-latest-security-issue-with-no-se-1845013709
- https://www.bluetooth.com/learn-about-bluetooth/bluetooth-technology/bluetooth-security/blurtooth/
- https://www.kb.cert.org/vuls/id/589825
- https://gizmodo.com/bluetooth-unveils-its-latest-security-issue-with-no-se-1845013709
- https://www.bluetooth.com/learn-about-bluetooth/bluetooth-technology/bluetooth-security/blurtooth/
- https://www.kb.cert.org/vuls/id/589825
Products affected by CVE-2020-15802
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cpe:2.3:a:bluetooth:bluetooth_core_specification:1.1b
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cpe:2.3:a:bluetooth:bluetooth_core_specification:1.2
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cpe:2.3:a:bluetooth:bluetooth_core_specification:2.0
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cpe:2.3:a:bluetooth:bluetooth_core_specification:2.1
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cpe:2.3:a:bluetooth:bluetooth_core_specification:3.0
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cpe:2.3:a:bluetooth:bluetooth_core_specification:4.0
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cpe:2.3:a:bluetooth:bluetooth_core_specification:4.1
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cpe:2.3:a:bluetooth:bluetooth_core_specification:4.2
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cpe:2.3:a:bluetooth:bluetooth_core_specification:5.0