Summary
Security researchers at ESET have reported a vulnerability called Kr00k (CVE-2019- 15126) which affects encrypted WiFi traffic for devices using Broadcom or Cypress chipsets. The vulnerability may allow an attacker to decrypt some WPA2- Personal/Enterprise traffic by forcing an AP/client to start utilizing an all-zero encryption key (similar to KRACK vulnerability).
Details
Impact
Pepperl+Fuchs analyzed its ECOM branded mobile device portfolio in respect of the 'Kr00k' vulnerabilities. To our current knowledge only Tab-Ex 02 is potentially affected by these vulnerabilities. Devices with security patch level <= 01.03.2020 are affected.
Mitigation
Pepperl+Fuchs is continuously and rigorously working closely with our partner to patch all affected Devices.
Update for Tab-Ex 02 is planned for 05/2020
ECOM mobile devices are normally used in the corporate network. This implies that outgoing connections and local software installations have to be configured by administrators. It should be ensured that the data connections are additionally encrypted, e.g. HTTPS or SSH.
Vulnerabilities 1
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Unscored —CVE-2019-15126 Public exploit
An issue was discovered on Broadcom Wi-Fi client devices. Specifically timed and handcrafted traffic can cause internal…
Revision history
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#2
Fix: version space
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#1
Initial revision.
References
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CERT@VDE Security Advisories for Pepperl+Fuchs
https://certvde.com/en/advisories/vendor/pepperl+fuchs/
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VDE-2020-014: Pepperl+Fuchs: Kr00k vulnerabilities in Broadcom Wi-Fi chipsets - HTML
https://certvde.com/de/advisories/VDE-2020-014/