CVE-2019-9498

HIGH

hostapd and wpa_supplicant <= 2.4 - Authentication Bypass via Invalid EAP-PWD Scalar/Element Values

Title source: llm
STIX 2.1

Description

The implementations of EAP-PWD in hostapd EAP Server, when built against a crypto library missing explicit validation on imported elements, do not validate the scalar and element values in EAP-pwd-Commit. An attacker may be able to use invalid scalar/element values to complete authentication, gaining session key and network access without needing or learning the password. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.4 are affected. Both hostapd with EAP-pwd support and wpa_supplicant with EAP-pwd support prior to and including version 2.7 are affected.

References (9)

Core 9
Core References
Patch, Vendor Advisory x_refsource_confirm
https://w1.fi/security/2019-4/
Third Party Advisory x_refsource_confirm
https://www.synology.com/security/advisory/Synology_SA_19_16
Third Party Advisory vendor-advisory x_refsource_freebsd
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.asc
Mailing List, Third Party Advisory mailing-list x_refsource_bugtraq
https://seclists.org/bugtraq/2019/May/40
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2019/07/msg00030.html
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00021.html

Scores

CVSS v3 8.1
EPSS 0.0088
EPSS Percentile 75.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-346 CWE-287
Status published
Products (13)
debian/debian_linux 8.0
fedoraproject/fedora 28
fedoraproject/fedora 29
fedoraproject/fedora 30
freebsd/freebsd 11.2 (10 CPE variants)
freebsd/freebsd 12.0 (4 CPE variants)
freebsd/freebsd 11.0 - 11.1
opensuse/backports_sle 15.0 (2 CPE variants)
opensuse/leap 15.1
synology/radius_server 3.0
... and 3 more
Published Apr 17, 2019
Tracked Since Feb 18, 2026