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PYSEC-2022-303

Details

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.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI / django-mfa2

Introduced in: 0 Fixed in: 2.5.1

Fix pip install --upgrade 'django-mfa2>=2.5.1'

References

https://github.com/mkalioby/django-mfa2/releases/tag/v2.6.1-release [WEB]
https://github.com/mkalioby/django-mfa2/releases/tag/v2.5.1-release [WEB]
https://github.com/mkalioby/django-mfa2/blob/0936ea253354dd95cb127f09d0efa31324caef27/mfa/FIDO2.py#L58 [EVIDENCE]
https://github.com/mkalioby/django-mfa2/blob/0936ea253354dd95cb127f09d0efa31324caef27/mfa/FIDO2.py#L58 [WEB]
https://github.com/advisories/GHSA-vw39-2wj9-4q86 [ADVISORY]