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Alerts This Week
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Ubuntu 24.04 LTS USN-7055-1 high: freeradius authentication bypass

ubuntu
Calendar Grey October 3, 2024
Dist Ubuntu Esm H88
The Ubuntu Security Alert USN-7056-1 has disclosed a critical vulnerability in OpenSSH that enables remote access without proper authentication.
A system authentication measure could be bypassed.

Summary

A system authentication measure could be bypassed.

Software Description:

- freeradius: high-performance and highly configurable RADIUS server

Details:

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.

Topics%20covered

Topics Covered

security advisory high severity security fix Ubuntu authentication bypass freeradius network access

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 24.04 LTS
   freeradius                      3.2.5+dfsg-3~ubuntu24.04.1

Ubuntu 22.04 LTS
   freeradius                      3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu3.3

Ubuntu 20.04 LTS
   freeradius                      3.0.20+dfsg-3ubuntu0.4

In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-7055-1

CVE-2024-3596

Ubuntu Security Notice USN-7055-1

Topics%20covered

Topics Covered

security advisory high severity security fix Ubuntu authentication bypass freeradius network access

Package Information

https://launchpad.net/ubuntu/+source/freeradius/3.0.26~dfsg~git20220223.1.00ed0241fa-0ubuntu3.3
https://launchpad.net/ubuntu/+source/freeradius/3.0.20+dfsg-3ubuntu0.4

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