CVE-2019-9497 — Reflection Attack in an Authentication Protocol in Alliance Hostapd With Eap-pwd Support
Severity
8.1HIGHNVD
EPSS
9.1%
top 7.32%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedApr 17
Latest updateMay 14
Description
The implementations of EAP-PWD in hostapd EAP Server and wpa_supplicant EAP Peer do not validate the scalar and element values in EAP-pwd-Commit. This vulnerability may allow an attacker to complete EAP-PWD authentication without knowing the password. However, unless the crypto library does not implement additional checks for the EC point, the attacker will not be able to derive the session key or complete the key exchange. Both hostapd with SAE support and wpa_supplicant with SAE support prior …
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 2.2 | Impact: 5.9
Affected Packages6 packages
Also affects: Fedora 28, 29, 30
Patches
🔴Vulnerability Details
4GHSA▶
GHSA-fvg7-p9r8-pcrj: The implementations of EAP-PWD in hostapd EAP Server and wpa_supplicant EAP Peer do not validate the scalar and element values in EAP-pwd-Commit↗2022-05-14
OSV▶
CVE-2019-9497: The implementations of EAP-PWD in hostapd EAP Server and wpa_supplicant EAP Peer do not validate the scalar and element values in EAP-pwd-Commit↗2019-04-17
CVEList▶
The implementations of EAP-PWD in hostapd EAP Server and wpa_supplicant EAP Peer do not validate the scalar and element values in EAP-pwd-Commit↗2019-04-17
📋Vendor Advisories
5Debian▶
CVE-2019-9497: wpa - The implementations of EAP-PWD in hostapd EAP Server and wpa_supplicant EAP Peer...↗2019