Vulnerability Report

CVE-2019-9506

Title: Huawei Ever-L29B Cryptographic Failures

Cryptographic Failures

Proof Of Concept

PoC Available for CVE-2019-9506

CWE Category CWE-327
Published Date Aug 14, 2019
Modified Date Nov 21, 2024
Exploit Status Available
Score 8.1 CVSS v3.1
Exploit Probability (EPSS)
4.15%

Vulnerability Summary

CVE-2019-9506: 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.

Impacted Vendors

R
rim 1
R
redhat 2
H
huawei 126
B
blackberry 1

Reference Links

http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00036.html http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00037.html http://seclists.org/fulldisclosure/2019/Aug/11 http://seclists.org/fulldisclosure/2019/Aug/13 http://seclists.org/fulldisclosure/2019/Aug/14 http://seclists.org/fulldisclosure/2019/Aug/15 http://www.cs.ox.ac.uk/publications/publication12404-abstract.html http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20190828-01-knob-en https://access.redhat.com/errata/RHSA-2019:2975 https://access.redhat.com/errata/RHSA-2019:3055 https://access.redhat.com/errata/RHSA-2019:3076 https://access.redhat.com/errata/RHSA-2019:3089 https://access.redhat.com/errata/RHSA-2019:3165 https://access.redhat.com/errata/RHSA-2019:3187 https://access.redhat.com/errata/RHSA-2019:3217 https://access.redhat.com/errata/RHSA-2019:3218 https://access.redhat.com/errata/RHSA-2019:3220 https://access.redhat.com/errata/RHSA-2019:3231 https://access.redhat.com/errata/RHSA-2019:3309 https://access.redhat.com/errata/RHSA-2019:3517 https://access.redhat.com/errata/RHSA-2020:0204 https://lists.debian.org/debian-lts-announce/2019/09/msg00014.html https://lists.debian.org/debian-lts-announce/2019/09/msg00015.html https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html https://usn.ubuntu.com/4115-1/ https://usn.ubuntu.com/4118-1/ https://usn.ubuntu.com/4147-1/ https://www.bluetooth.com/security/statement-key-negotiation-of-bluetooth/ https://www.kb.cert.org/vuls/id/918987/ https://www.usenix.org/conference/usenixsecurity19/presentation/antonioli http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00036.html http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00037.html http://seclists.org/fulldisclosure/2019/Aug/11 http://seclists.org/fulldisclosure/2019/Aug/13 http://seclists.org/fulldisclosure/2019/Aug/14 http://seclists.org/fulldisclosure/2019/Aug/15 http://www.cs.ox.ac.uk/publications/publication12404-abstract.html http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20190828-01-knob-en https://access.redhat.com/errata/RHSA-2019:2975 https://access.redhat.com/errata/RHSA-2019:3055 https://access.redhat.com/errata/RHSA-2019:3076 https://access.redhat.com/errata/RHSA-2019:3089 https://access.redhat.com/errata/RHSA-2019:3165 https://access.redhat.com/errata/RHSA-2019:3187 https://access.redhat.com/errata/RHSA-2019:3217 https://access.redhat.com/errata/RHSA-2019:3218 https://access.redhat.com/errata/RHSA-2019:3220 https://access.redhat.com/errata/RHSA-2019:3231 https://access.redhat.com/errata/RHSA-2019:3309 https://access.redhat.com/errata/RHSA-2019:3517 https://access.redhat.com/errata/RHSA-2020:0204 https://lists.debian.org/debian-lts-announce/2019/09/msg00014.html https://lists.debian.org/debian-lts-announce/2019/09/msg00015.html https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html https://usn.ubuntu.com/4115-1/ https://usn.ubuntu.com/4118-1/ https://usn.ubuntu.com/4147-1/ https://www.bluetooth.com/security/statement-key-negotiation-of-bluetooth/ https://www.kb.cert.org/vuls/id/918987/ https://www.usenix.org/conference/usenixsecurity19/presentation/antonioli
CVSS v3.1
Source Entity [email protected]
Severity HIGH
8.1
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS v3.0
Source Entity [email protected]
Severity HIGH
7.6
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
4.8
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:A/AC:L/Au:N/C:P/I:P/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2019-9506 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/francozappa/knob
View Code
GitHub https://github.com/coffeeesd/knob
View Code
GitHub https://github.com/BrainsBook/knob
View Code
MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector ADJACENT_NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected Stack

No specific products linked.