CVE-2018-0412 Weak cryptography in Small Business 100 Series Wireless Access Points
An adjacent attacker can force a downgrade to weak WPA-TKIP encryption on Cisco Small Business Access Points, enabling subsequent attacks that disclose confidential information.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-0412?
CVE-2018-0412 is a medium-severity vulnerability in Cisco Systems, Inc. Small Business 100 Series Wireless Access Points, published on 15 Aug 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-310
Which versions are affected by CVE-2018-0412?
It affects 8 products.
Products include Cisco Wap121 Firmware, Cisco Wap125 Firmware, Cisco Wap131 Firmware, Cisco Wap150 Firmware, Cisco Wap321 Firmware, Cisco Wap351 Firmware and 2 more.
How do I fix CVE-2018-0412?
No fix has been published for CVE-2018-0412 yet. Limit exposure of the affected software until one is available.
Is CVE-2018-0412 being exploited?
There is no known exploitation of CVE-2018-0412 in the wild and no public exploit code.
Other vulnerabilities in Cisco Systems, Inc. Small Business 100 Series Wireless Access Points
Sources
Also known as GHSA-c7f3-h262-jxw5.