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cve[email protected]CVE-2020-26558
HistoryMay 24, 2021 - 6:15 p.m.

CVE-2020-26558

2021-05-2418:15:00
CWE-287
web.nvd.nist.gov
344
9
cve
2020
26558
bluetooth
vulnerability
man-in-the-middle
attack

4.2 Medium

CVSS3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

5.6 Medium

AI Score

Confidence

Low

4.3 Medium

CVSS2

Access Vector

ADJACENT_NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:A/AC:M/Au:N/C:P/I:P/A:N

0.001 Low

EPSS

Percentile

27.6%

Bluetooth LE and BR/EDR secure pairing in Bluetooth Core Specification 2.1 through 5.2 may permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing (in the Passkey authentication procedure) by reflection of the public key and the authentication evidence of the initiating device, potentially permitting this attacker to complete authenticated pairing with the responding device using the correct Passkey for the pairing session. The attack methodology determines the Passkey value one bit at a time.

Social References

More

4.2 Medium

CVSS3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

5.6 Medium

AI Score

Confidence

Low

4.3 Medium

CVSS2

Access Vector

ADJACENT_NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:A/AC:M/Au:N/C:P/I:P/A:N

0.001 Low

EPSS

Percentile

27.6%

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