First published: Wed Aug 15 2018(Updated: )
A vulnerability in the implementation of Extensible Authentication Protocol over LAN (EAPOL) functionality in Cisco Small Business 100 Series Wireless Access Points and Cisco Small Business 300 Series Wireless Access Points could allow an unauthenticated, adjacent attacker to force the downgrade of the encryption algorithm that is used between an authenticator (access point) and a supplicant (Wi-Fi client). The vulnerability is due to the improper processing of certain EAPOL messages that are received during the Wi-Fi handshake process. An attacker could exploit this vulnerability by establishing a man-in-the-middle position between a supplicant and an authenticator and manipulating an EAPOL message exchange to force usage of a WPA-TKIP cipher instead of the more secure AES-CCMP cipher. A successful exploit could allow the attacker to conduct subsequent cryptographic attacks, which could lead to the disclosure of confidential information. Cisco Bug IDs: CSCvj29229.
Credit: ykramarz@cisco.com
Affected Software | Affected Version | How to fix |
---|---|---|
Cisco Wap121 Firmware | <=1.0.6.6 | |
Cisco Wap121 | ||
Cisco Wap125 Firmware | <=1.0.6.6 | |
Cisco Wap125 | ||
Cisco Wap131 Firmware | <=1.0.6.6 | |
Cisco Wap131 | ||
Cisco Wap150 Firmware | <=1.0.6.6 | |
Cisco WAP150 | ||
Cisco Wap321 Firmware | <=1.0.6.6 | |
Cisco Wap321 | ||
Cisco Wap351 Firmware | <=1.0.6.6 | |
Cisco Wap351 | ||
Cisco Wap361 Firmware | <=1.0.6.6 | |
Cisco Wap361 | ||
Cisco Wap371 Firmware | <=1.0.6.6 | |
Cisco WAP371 |
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CVE-2018-0412 is a vulnerability in the implementation of Extensible Authentication Protocol over LAN (EAPOL) functionality in Cisco Small Business 100 Series Wireless Access Points and Cisco Small Business 300 Series Wireless Access Points.
The severity of CVE-2018-0412 is medium, with a CVSS score of 5.3.
CVE-2018-0412 affects Cisco Wap121 Firmware versions up to and including 1.0.6.6.
CVE-2018-0412 affects Cisco Wap125 Firmware versions up to and including 1.0.6.6.
You can find more information about CVE-2018-0412 in the Cisco Security Advisory at https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180815-sb-wap-encrypt.