#VU23961 Improper Authentication in hostapd - CVE-2019-9496 

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Main Vulnerability Database Vulnerabilities #VU23961

#VU23961 Improper Authentication in hostapd - CVE-2019-9496

Published: January 6, 2020


Vulnerability identifier: #VU23961
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-9496
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
hostapd
Software vendor:
Jouni Malinen

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to missing state validation steps when processing the SAE confirm message when in hostapd/AP mode. A remote attacker can bypass authentication process, force the hostapd process to terminate and perform a denial of service (DoS) attack on the target system.


Remediation

Install updates from vendor's website.

External links