BlastRADIUS also affects eduMFA
Date: 2024-07
Affected: pip/edumfa
Attack vector: other
Category: vulnerability-disclosure
Severity: Medium
CWE: CWE-924
CVSS: 6.8 (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N)

### Summary BlastRADIUS (see blastradius.fail for details) also affects eduMFA prior version 2.2.0, because the Message-Authenticator attributes were not checked. ### Details Website with the vulnerability information blastradius.fail The original vulnerability has been assigned CVE-2024-3596 Case in vince: https://kb.cert.org/vuls/id/456537 ### PoC There is no known proof-of-concept except for the attack shown in the paper from the researchers ### Impact An attacker can trigger an authentication flow with a RADIUS-backed token, intercept the RADIUS packet sent by eduMFA and modify the RADIUS server's answer, which would lead eduMFA to believe that the token is valid, even though the RADIUS servers answer was a reject.


Mitigations:

Architectural layers (MAESTRO):