CVE-2019-9506

Published Aug 14, 2019

Last updated 3 years ago

Overview

Description
The Bluetooth BR/EDR specification up to and including version 5.1 permits sufficiently low encryption key length and does not prevent an attacker from influencing the key length negotiation. This allows practical brute-force attacks (aka "KNOB") that can decrypt traffic and inject arbitrary ciphertext without the victim noticing.
Source
cret@cert.org
NVD status
Analyzed

Risk scores

CVSS 3.1

Type
Primary
Base score
8.1
Impact score
5.2
Exploitability score
2.8
Vector string
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Severity
HIGH

CVSS 3.0

Type
Secondary
Base score
7.6
Impact score
4.7
Exploitability score
2.8
Vector string
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
Severity
HIGH

CVSS 2.0

Type
Primary
Base score
4.8
Impact score
4.9
Exploitability score
6.5
Vector string
AV:A/AC:L/Au:N/C:P/I:P/A:N

Weaknesses

nvd@nist.gov
CWE-327
cret@cert.org
CWE-310

Social media

Hype score
Not currently trending

Configurations

References