CVE-2019-9498
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.21%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.21% probability · 82th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-346, CWE-287
- Affected
- w1.fi/hostapd · w1.fi/wpa supplicant · fedoraproject/fedora · opensuse/backports sle · opensuse/leap · debian/debian linux · synology/radius server · synology/router manager · freebsd/freebsd
- Source
- cret@cert.org
References
- http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00021.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/07/msg00030.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/56OBBOJJSKRTDGEXZOVFSTP4HDSDBLAE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVMJOFEYBGXZLFF5IOLW67SSOPKFEJP3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TDOZGR3T7FVO5JSZWK2QPR7AOFIEJTIZ/
- https://seclists.org/bugtraq/2019/May/40Mailing List, Third Party Advisory
- https://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.ascThird Party Advisory
- https://w1.fi/security/2019-4/Patch, Vendor Advisory
- https://www.synology.com/security/advisory/Synology_SA_19_16Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00021.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/07/msg00030.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/56OBBOJJSKRTDGEXZOVFSTP4HDSDBLAE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVMJOFEYBGXZLFF5IOLW67SSOPKFEJP3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TDOZGR3T7FVO5JSZWK2QPR7AOFIEJTIZ/
- https://seclists.org/bugtraq/2019/May/40Mailing List, Third Party Advisory
- https://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.ascThird Party Advisory
- https://w1.fi/security/2019-4/Patch, Vendor Advisory
- https://www.synology.com/security/advisory/Synology_SA_19_16Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.