CVE-2020-10135: Bluetooth devices supporting BR/EDR v5.2 and earlier are vulnerable to impersonation attacks
A vulnerability affecting Bluetooth BR/EDR pairing was found in the Bluetooth Core specification versions 1.0 through 5.2. The flaw could allow an attacking device to spoof the address of a previously paired remote device to successfully complete the authentication procedure with some paired/bonded devices while not possessing the link key. This can permit an attacker to initiate the Bluetooth Key Negotiation attack (KNOB) on encryption key strength without intervening in an ongoing pairing procedure through an injection attack.
Other sources
Bluetooth. An input validation issue existed in Bluetooth. This issue was addressed with improved input validation.
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.
— Launchpad
Credit
Affected Software
Remediation
Event History
Parent advisories
This vulnerability appears in the following advisories.
Peer vulnerabilities
Found alongside the following vulnerabilities.
- CVE-2019-9506
- CVE-2020-10135
- CVE-2019-8646
- CVE-2019-8647
- CVE-2019-8660
- CVE-2019-8702
- CVE-2018-16860
- CVE-2019-8668
- CVE-2019-13118
- CVE-2019-8698
- CVE-2019-8662
- CVE-2019-8657
- CVE-2019-8690
- CVE-2019-8649
- CVE-2019-8658
- CVE-2019-8644
- CVE-2019-8666
- CVE-2019-8669
- CVE-2019-8671
- CVE-2019-8672
- CVE-2019-8673
- CVE-2019-8676
- CVE-2019-8677
- CVE-2019-8678
- CVE-2019-8679
- CVE-2019-8680
- CVE-2019-8681
- CVE-2019-8683
- CVE-2019-8684
- CVE-2019-8685
- CVE-2019-8686
- CVE-2019-8687
- CVE-2019-8688
- CVE-2019-8689
- CVE-2019-8693
- CVE-2019-8656
- CVE-2018-19860
- CVE-2019-8661
- CVE-2019-8675
- CVE-2019-8696
- CVE-2019-8539
- CVE-2019-8697
- CVE-2019-8648
- CVE-2019-8663
- CVE-2019-8695
- CVE-2019-8691
- CVE-2019-8692
- CVE-2019-8694
- CVE-2019-8670
- CVE-2019-8701
- CVE-2019-8667
- CVE-2019-8624
- CVE-2019-8633
- CVE-2019-8659
- CVE-2019-8665
- CVE-2019-8682
- CVE-2019-8699
Frequently Asked Questions
What is the severity of CVE-2020-10135?
CVE-2020-10135 is considered a high severity vulnerability that affects Bluetooth pairing.
How do I fix CVE-2020-10135?
To mitigate CVE-2020-10135, ensure your affected devices are updated to the latest software versions provided by the vendor.
What devices are affected by CVE-2020-10135?
CVE-2020-10135 affects various Apple products including iOS, macOS Mojave, High Sierra, Sierra, watchOS, and tvOS, as well as some Bluetooth Core implementations.
Can CVE-2020-10135 be exploited remotely?
Yes, CVE-2020-10135 can potentially allow an attacker to spoof a device and exploit the vulnerability within Bluetooth BR/EDR pairing.
Is CVE-2020-10135 related to Bluetooth version limitations?
CVE-2020-10135 affects Bluetooth Core specifications from version 1.0 through 5.2.