GHSA-j5rm-v3vh-vx94 — high GitHub Advisory in pip/edumfa

Description

In eduMFA < 2.9.1 userless Passkey/WebAuthn challenges might be replayed and do not expire

Fixed in eduMFA >= 2.9.1 by adding validity information to the userless challenges.

No known workarounds besides disabling userless login altogether.

Base score	Version	Severity	Vector
8.7	4.0	—	`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network. Attack complexity (AC:L) Exploitation conditions are straightforward and stable. Attack requirements (AT:N) No additional preconditions are required beyond normal reachability. Privileges required (PR:N) No privileges are required. User interaction (UI:N) No user interaction is required. Vulnerable system confidentiality impact (VC:N) No confidentiality impact on the vulnerable system. Vulnerable system integrity impact (VI:H) High integrity impact on the vulnerable system. Vulnerable system availability impact (VA:N) No availability impact on the vulnerable system. Subsequent system confidentiality impact (SC:N) No confidentiality impact on subsequent systems. Subsequent system integrity impact (SI:N) No integrity impact on subsequent systems. Subsequent system availability impact (SA:N) No availability impact on subsequent systems.

Type	Value
GHSA	GHSA-j5rm-v3vh-vx94 ↗

CWE id	Name
CWE-287	Improper Authentication
CWE-613	Insufficient Session Expiration

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem	Package	Vulnerable range	First patched	Vulnerable functions
pip	edumfa	< 2.9.1	2.9.1	—