SARA / Free Tools / CVE / CVE-2019-9498

CVE-2019-9498 — The implementations of EAP-PWD in hostapd EAP Server, when built against a crypt

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 au

CVSS
— —
EPSS
1.21% (top 21.20%)
CWE
CWE-346
Published
2019-04-17T13:31:08.000Z
Last modified
2024-08-04T21:54:44.081Z
CVSS vector
—

01What is this vulnerability?

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…

02Affected products

VendorProductVersions
Wi-Fi Alliancehostapd with EAPpwd support — 2.7
Wi-Fi Alliancewpa_supplicant with EAPpwd support — 2.7
Wi-Fi Alliancehostapd with SAE support2.4
Wi-Fi Alliancewpa_supplicant with SAE support2.4

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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