CVE-2018-14526

moderate-risk

Published 2018-08-08

An issue was discovered in rsn_supp/wpa.c in wpa_supplicant 2.0 through 2.6. Under certain conditions, the integrity of EAPOL-Key messages is not checked, leading to a decryption oracle. An attacker within range of the Access Point and client can abuse the vulnerability to recover sensitive information.

Do I need to act?

1.1% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 6.5/10 Medium

ADJACENT_NETWORK / LOW complexity

Affected Products (5)

Ubuntu Linux

Debian Linux

Wpa Supplicant

Affected Vendors

Debian Canonical W1.Fi

References (20)

http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00013.html

Third Party Advisory http://www.securitytracker.com/id/1041438

https://access.redhat.com/errata/RHSA-2018:3107

https://cert-portal.siemens.com/productcert/pdf/ssa-344983.pdf

Mailing List https://lists.debian.org/debian-lts-announce/2018/08/msg00009.html

Technical Description https://papers.mathyvanhoef.com/woot2018.pdf

Mitigation https://security.FreeBSD.org/advisories/FreeBSD-SA-18:11.hostapd.asc

Third Party Advisory https://usn.ubuntu.com/3745-1/

Mitigation https://w1.fi/security/2018-1/unauthenticated-eapol-key-decryption.txt

https://www.us-cert.gov/ics/advisories/icsa-19-344-01