Summary
Goldberg, Miro Haller, Nadia Heninger, Mike Milano, Dan Shumow, Marc
Stevens, and Adam Suhl discovered that FreeRADIUS incorrectly authenticated
certain responses. An attacker able to intercept communications between a
RADIUS client and server could possibly use this issue to forge responses,
bypass authentication, and access network devices and services.
This update introduces new configuration options called "limit_proxy_state"
and "require_message_authenticator" that default to "auto" but should be
set to "yes" once all RADIUS devices have been upgraded on a network.
Fixed packages 3
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 20.04 LTS 20.04:LTS | freeradius | 3.0.20+dfsg-3ubuntu0.4 |
| Ubuntu · 22.04 LTS 22.04:LTS | freeradius | 3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu3.3 |
| Ubuntu · 24.04 LTS 24.04:LTS | freeradius | 3.2.5+dfsg-3~ubuntu24.04.1 |
Vulnerabilities 1
-
Critical 9.0
RADIUS Protocol under RFC2865 is vulnerable to forgery attacks.
RADIUS Protocol under RFC 2865 is susceptible to forgery attacks by a local attacker who can modify any valid Response (Access-Accept, Access-Reject, or Access-Challenge) to any other response using a chosen-prefix collision attack against MD5 Response Authen…
References
-
report
https://ubuntu.com/security/CVE-2024-3596