CVE-2019-9496

high
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

An invalid authentication sequence could result in the hostapd process terminating due to missing state validation steps when processing the SAE confirm message when in hostapd/AP mode. All version of hostapd with SAE support are vulnerable. An attacker may force the hostapd process to terminate, performing a denial of service attack. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.7 are affected.

References

http://packetstormsecurity.com/files/152914/FreeBSD-Security-Advisory-FreeBSD-SA-19-03.wpa.html

https://lists.fedoraproject.org/archives/list/[email protected]/message/56OBBOJJSKRTDGEXZOVFSTP4HDSDBLAE/

https://lists.fedoraproject.org/archives/list/[email protected]/message/SVMJOFEYBGXZLFF5IOLW67SSOPKFEJP3/

https://lists.fedoraproject.org/archives/list/[email protected]/message/TDOZGR3T7FVO5JSZWK2QPR7AOFIEJTIZ/

https://seclists.org/bugtraq/2019/May/40

https://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.asc

https://w1.fi/security/2019-3/

https://www.synology.com/security/advisory/Synology_SA_19_16

Details

Source: MITRE

Published: 2019-04-17

Updated: 2019-05-15

Type: CWE-287

Risk Information

CVSS v2

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH

Tenable Plugins

View all (10 total)

IDNameProductFamilySeverity
149192EulerOS 2.0 SP3 : wpa_supplicant (EulerOS-SA-2021-1860)NessusHuawei Local Security Checks
high
137982EulerOS Virtualization 3.0.6.0 : wpa_supplicant (EulerOS-SA-2020-1763)NessusHuawei Local Security Checks
medium
133758openSUSE Security Update : hostapd (openSUSE-2020-222) (KRACK)NessusSuSE Local Security Checks
high
128948EulerOS Virtualization for ARM 64 3.0.2.0 : wpa_supplicant (EulerOS-SA-2019-1945)NessusHuawei Local Security Checks
medium
128814EulerOS 2.0 SP5 : wpa_supplicant (EulerOS-SA-2019-1891)NessusHuawei Local Security Checks
medium
124554Fedora 30 : hostapd (2019-eba1109acd)NessusFedora Local Security Checks
high
124539Fedora 30 : 1:wpa_supplicant (2019-ca49dfd42f)NessusFedora Local Security Checks
high
124252Fedora 29 : hostapd (2019-f409af9fbe)NessusFedora Local Security Checks
high
124250Fedora 28 : hostapd (2019-d03bae77f5)NessusFedora Local Security Checks
high
124223FreeBSD : FreeBSD -- SAE confirm missing state validation (98b71436-656d-11e9-8e67-206a8a720317)NessusFreeBSD Local Security Checks
high