ID:6470 - Exploit for Inadequate Encryption Strength in Cisco Systems, Inc products - CVE-2019-15126

Vulnerability identifier: #VU25646

Vulnerability risk: Low

CVE-ID: CVE-2019-15126

CWE-ID: CWE-326

Exploitation vector: Adjecent network

Vulnerable software:
Cisco Connected Grid Routers
Cisco RV340W Dual WAN Gigabit Wireless-AC VPN Router
RV110W Wireless-N VPN Firewall
RV215W Wireless-N VPN Router
Cisco Small Business RV130 Series VPN Routers
Cisco WAP125 Wireless-AC Dual Band Desktop Access Point with PoE
Cisco WAP150 Wireless-AC/N Dual Radio Access Point with PoE
Cisco WAP361 Wireless-AC/N Dual Radio Wall Plate Access Point with PoE
Cisco WAP571 Wireless-AC/N Premium Dual Radio Access Point with PoE
Cisco WAP571E Wireless-AC/N Premium Dual Radio Outdoor Access Point
Cisco WAP581 Wireless-AC Dual Radio Wave 2 Access Point
Cisco Wireless IP Phone 8821
Cisco Catalyst 9115 Series Wi-Fi 6 Access Points
Cisco Catalyst 9120 Series Access Points

https://github.com/raul23/Kr00k

The vulnerability allows a remote attacker to decrypt Wi-Fi frames.

The vulnerability exists because after an affected device handles a disassociation event it can send a limited number of Wi-Fi frames encrypted with a static, weak Pairwise Temporal Key (PTK). A remote attacker on the local network can acquire these frames and decrypt them with the static PTK without the knowledge of the security session establishment used to secure the Wi-Fi network.

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.