CVE-2019-9497CWE-301

CVE-2019-9497: vulnerability in Wi-Fi Alliance hostapd with SAE support

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

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3Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackepss 5.0%
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 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.
Affected products
Wi-Fi Alliance · hostapd with EAP-pwd supportWi-Fi Alliance · hostapd with SAE supportWi-Fi Alliance · wpa_supplicant with EAP-pwd supportWi-Fi Alliance · wpa_supplicant with SAE support
Related CVEs — Wi-Fi Alliance hostapd with SAE support

In the same product, most dangerous first.

CVE-2019-9496—An invalid authentication sequence could result in the hostapd process terminating due to missing state validation stepsEPSS 4.6%CVE-2019-9494—The implementations of SAE in hostapd and wpa_supplicant are vulnerable to side-channel attacksEPSS 3.9%CVE-2019-9495—The implementations of EAP-PWD in hostapd and wpa_supplicant are vulnerable to side-channel attacks as a result of cache access patternsEPSS 3.5%CVE-2019-9498—The implementations of EAP-PWD in hostapd EAP Server do not validate the scalar and element values in EAP-pwd-CommitEPSS 2.2%CVE-2019-9499—The implementations of EAP-PWD in wpa_supplicant EAP Peer do not validate the scalar and element values in EAP-pwd-CommitEPSS 2.2%