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

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 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.

Scores

EPSS (exploitation in 30 days)

5.0% · top 7.8% of all CVEs (5 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.1.

Weakness

• CWE-301 (opens in a new tab)All about CWE-301 and its CVEs
• CWE-287 (opens in a new tab)All about CWE-287 and its CVEs

Affected products

• Wi-Fi Alliance · hostapd with EAP-pwd support

  • affected 2.7 – ≤ 2.7

• Wi-Fi Alliance · wpa_supplicant with EAP-pwd support

  • affected 2.7 – ≤ 2.7

• Wi-Fi Alliance · hostapd with SAE support

  • affected 2.4 – ≤ 2.4

• Wi-Fi Alliance · wpa_supplicant with SAE support

  • affected 2.4 – ≤ 2.4

References (10)

• https://w1.fi/security/2019-4/ (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://www.synology.com/security/advisory/Synology_SA_19_16 (opens in a new tab)x_refsource_CONFIRMx_transferred
• FEDORA-2019-d03bae77f5 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• FEDORA-2019-f409af9fbe (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• FEDORA-2019-eba1109acd (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• FreeBSD-SA-19:03 (opens in a new tab)vendor-advisoryx_refsource_FREEBSDx_transferred
• 20190515 FreeBSD Security Advisory FreeBSD-SA-19:03.wpa (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• http://packetstormsecurity.com/files/152914/FreeBSD-Security-Advisory-FreeBSD-SA-19-03.wpa.html (opens in a new tab)x_refsource_MISCx_transferred
• [debian-lts-announce] 20190731 [SECURITY] [DLA 1867-1] wpa security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• openSUSE-SU-2020:0222 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2019-9497](https://trackcve.app/badge/CVE-2019-9497.svg)](https://trackcve.app/cve/CVE-2019-9497)

Record last updated 4 Aug 2024, 21:54 UTC.