CVE-2021-32642 Information

Description

radsecproxy is a generic RADIUS proxy that supports both UDP and TLS (RadSec) RADIUS transports. Missing input validation in radsecproxy’s naptr-eduroam.sh and radsec-dynsrv.sh scripts can lead to configuration injection via crafted radsec peer discovery DNS records. Users are subject to Information disclosure Denial of Service Redirection of Radius connection to a non-authenticated server leading to non-authenticated network access. Updated example scripts are available in the master branch and 1.9 release. Note that the scripts are not part of the installation package and are not updated automatically. If you are using the examples you have to update them manually. The dyndisc scripts work independently of the radsecproxy code. The updated scripts can be used with any version of radsecproxy.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

Reference

https://www.usenix.org/conference/usenixsecurity21/presentation/jeitner https://github.com/radsecproxy/radsecproxy/security/advisories/GHSA-56gw-9rj9-55rc https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W7QK5M2SZVMCAFSRQMM6PRZZRQQ372XI/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HOC5AFG65NYLMMUTNSBOPC5F4LBAC7BR/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.4