SB2017030202 - MitM attack against OpenBSD wireless clients



SB2017030202 - MitM attack against OpenBSD wireless clients

Published: March 2, 2017

Security Bulletin ID SB2017030202
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Adjecent network
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Man-in-the-middle attack (CVE-ID: N/A)

CWE-ID: CWE-310 - Cryptographic Issues

CVSSv4: 5.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists in implementation of IEEE 802.11 protocol for client connections when using WPA1 and WPA2 protocols. A remote attacker in local network can force OpenBSD Wi-Fi client to connect to a rouge access point and decrypt all network traffic.

Successful exploitation of the vulnerability may result in successful Man-in-the-Middle (MitM) attack against vulnerable system.


Remediation

Install update from vendor's website.