CVE-2022-42731

State: Published
Severity: 7.5 High
Published: Oct 11, 2022
Updated: May 20, 2025
Reserved: Oct 10, 2022

Description

mfa/FIDO2.py in django-mfa2 before 2.5.1 and 2.6.x before 2.6.1 allows a replay attack that could be used to register another device for a user. The device registration challenge is not invalidated after usage.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N	CISA-ADP

Weaknesses

CWE-294 Authentication Bypass by Capture-replay

Affected Products

Product	Versions
n/an/a	n/aAffected

References

https://github.com/mkalioby/django-mfa2/blob/0936ea253354dd95cb127f09d0efa31324caef27/mfa/FIDO2.py#L58
https://github.com/mkalioby/django-mfa2/releases/tag/v2.5.1-release
https://github.com/mkalioby/django-mfa2/releases/tag/v2.6.1-release

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