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Cisco Aironet Access Points Multiple WPA2 Vulnerabilities

Information

Severity

Severity

Medium

Family

Family

CISCO

CVSSv2 Base

CVSSv2 Base

5.8

CVSSv2 Vector

CVSSv2 Vector

AV:A/AC:L/Au:N/C:P/I:P/A:P

Solution Type

Solution Type

Vendor Patch

Created

Created

5 years ago

Modified

Modified

4 years ago

Summary

Cisco Aironet Access Points are prone to key reinstallation attacks against WPA protocol.

Insight

Insight

On October 16th, 2017, a research paper with the title of 'Key Reinstallation Attacks: Forcing Nonce Reuse in WPA2' was made publicly available. This paper discusses seven vulnerabilities affecting session key negotiation in both the Wi-Fi Protected Access (WPA) and the Wi-Fi Protected Access II (WPA2) protocols. These vulnerabilities may allow the reinstallation of a pairwise transient key, a group key, or an integrity key on either a wireless client or a wireless access point. Additional research also led to the discovery of three additional vulnerabilities (not discussed in the original paper) affecting wireless supplicant supporting either the 802.11z (Extensions to Direct-Link Setup) standard or the 802.11v (Wireless Network Management) standard. The three additional vulnerabilities could also allow the reinstallation of a pairwise key, group key, or integrity group key.

Detection Method

Detection Method

Checks if a vulnerable version is present on the target host.

Solution

Solution

See the referenced advisory for a solution.

Common Vulnerabilities and Exposures (CVE)