CVE-2023-24023
Bluetooth BR/EDR devices with Secure Simple Pairing and Secure Connections pairing in Bluetooth Core Specification 4.2 through 5.4 allow certain man-in-the-middle attacks that force a short key length, and might lead to discovery of the encryption key and live injection, aka BLUFFS.
02 / AFFECTED SOFTWARE
Affected packages
4 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In multiple locations, there is a possible way to impersonate and MitM a device across session by only compromising one session key due to an insecure protocol design on Bluetooth Legacy Secure Connection (LSC). This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
Bluetooth BR/EDR devices with Secure Simple Pairing and Secure Connections pairing in Bluetooth Core Specification 4.2 through 5.4 allow certain man-in-the-middle attacks that force a short key length, and might lead to discovery of the encryption key and live injection, aka BLUFFS.
05 / REFERENCES
Further evidence
- https://android.googlesource.com/platform/packages/modules/Bluetooth/+/f904fd5ad7ef4222bb2f310c2486e4443f2a8837
- https://source.android.com/security/bulletin/2025-09-01
- https://dl.acm.org/doi/10.1145/3576915.3623066
- https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/bluffs-vulnerability/