SB2020022705 - Information disclosure in Cisco Wi-Fi Protected Network and Wi-Fi Protected Network 2

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Main Vulnerability Database SB2020022705

SB2020022705 - Information disclosure in Cisco Wi-Fi Protected Network and Wi-Fi Protected Network 2

Published: February 27, 2020

Security Bulletin ID SB2020022705
CSH Severity
Low
Patch available
NO
Number of vulnerabilities 1
Exploitation vector Adjecent network
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Inadequate Encryption Strength (CVE-ID: CVE-2019-15126)

CWE-ID: CWE-326 - Inadequate Encryption Strength

CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear


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.


Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References