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Test ID:1.3.6.1.4.1.25623.1.0.108808
Category:General
Title:AVM FRITZ!Box 7581 and 7582 < 7.13 Information Disclosure Vulnerability (Kr00k)
Summary:AVM FRITZ!Box 7581 and 7582 devices are prone to an information; disclosure vulnerability dubbed 'Kr00k'.
Description:Summary:
AVM FRITZ!Box 7581 and 7582 devices are prone to an information
disclosure vulnerability dubbed 'Kr00k'.

Vulnerability Insight:
An issue was discovered on Broadcom Wi-Fi client devices.

Specifically timed and handcrafted traffic can cause internal errors (related to state
transitions) in a WLAN device.

Vulnerability Impact:
The flaw lead to improper layer 2 Wi-Fi encryption with a
consequent possibility of information disclosure over the air for a discrete set of traffic.

Affected Software/OS:
AVM FRITZ!Box 7581 and 7582 devices running AVM FRITZ!OS before
version 7.13.

Solution:
Update to AVM FRITZ!OS 7.13 or later.

CVSS Score:
2.9

CVSS Vector:
AV:A/AC:M/Au:N/C:P/I:N/A:N

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2019-15126
Cisco Security Advisory: 20200227 Wi-Fi Protected Network and Wi-Fi Protected Network 2 Information Disclosure Vulnerability
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200226-wi-fi-info-disclosure
http://packetstormsecurity.com/files/156809/Broadcom-Wi-Fi-KR00K-Proof-Of-Concept.html
https://us-cert.cisa.gov/ics/advisories/icsa-20-224-05
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