Vulnerability in Apple Iphone OS
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.
Vulnerability class: POODLE (CVE-2014-3566)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.027 (85.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 85.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000
Affected products
- Apple Iphone OS — versions 12.4
- Apple Mac OS X — versions 10.12.6, 10.13.6, 10.14.5
- Apple tvOS — versions 12.4
- Apple watchOS — versions 5.3
- Blackberry
- Bluetooth Br/edr — versions 5.1
- Google Android
- Huawei Alp-Al00b
- Huawei Alp-Al00b Firmware
- Huawei Ares-Al00b
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.kb.cert.org/vuls/id/918987/ (US Government Resource, Third Party Advisory, third-party-advisory)
- www.cs.ox.ac.uk/publications/publication12404-abstract.html (Third Party Advisory)
- www.usenix.org/conference/usenixsecurity19/presentation/antonioli (Third Party Advisory)
- www.bluetooth.com/security/statement-key-negotiation-of-bluetooth/ (Third Party Advisory)
- seclists.org/fulldisclosure/2019/Aug/14 (mailing-list, Mailing List, Third Party Advisory)
- seclists.org/fulldisclosure/2019/Aug/11 (mailing-list, Mailing List, Third Party Advisory)
- seclists.org/fulldisclosure/2019/Aug/13 (mailing-list, Mailing List, Third Party Advisory)
- seclists.org/fulldisclosure/2019/Aug/15 (mailing-list, Mailing List, Third Party Advisory)
- www.huawei.com/en/psirt/security-advisories/huawei-sa-20190828-01-knob-en (Third Party Advisory)
- usn.ubuntu.com/4115-1/ (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-9506?
- CVE-2019-9506 is a high-severity vulnerability in Apple Iphone OS, classified under Cryptographic Issues. CVSS score: 8.1/10. Published 2019-08-14.
- How severe is CVE-2019-9506?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2019-9506 known to be exploited?
- 18 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.