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CVE-2019-9498

The implementations of EAP-PWD in hostapd EAP Server do not validate the scalar and element values in EAP-pwd-Commit

Published: Apr 17, 2019Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-346
NVD MITRE
8.1CVSSHIGH
EPSS Score
2.4%
Top 18.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-346CWE-287

Affected Products

WPA SupplicantJouni Malinen
Embedded
Networking Infrastructure / network-management
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
hostapdJouni Malinen
Embedded
Networking Infrastructure / network-management
Astra Linux Special Edition для «Эльбрус»ООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
jouni malinenindividual-devNetworking Infrastructureaka hostapd, wpa_supplicant
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
and 13 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://w1.fi/security/2019-4/
w1.fi
https://nvd.nist.gov/vuln/detail/CVE-2019-9498
nvd.nist.gov
https://security-tracker.debian.org/tracker/CVE-2019-9498
security-tracker.debian.org
and 12 more references View all →

Timeline

Published
Apr 17, 2019
Last Updated
Nov 21, 2024

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