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2FA bypass through deleting devices in wagtail-2fa

High severity GitHub Reviewed Published Mar 10, 2020 in labd/wagtail-2fa • Updated Jan 9, 2023

Package

pip wagtail-2fa (pip)

Affected versions

< 1.4.1

Patched versions

1.4.1

Description

Impact

Any user with access to the CMS can view and delete other users' 2FA devices by going to the correct path. The user does not require special permissions in order to do so. By deleting the other user's device they can disable the target user's 2FA devices and potentially compromise the account if they figure out their password.

Patches

The problem has been patched in version 1.4.1.

Workarounds

There is no workaround for this issue.

For more information

If you have any questions or comments about this advisory:

References

@mvantellingen mvantellingen published to labd/wagtail-2fa Mar 10, 2020
Reviewed Mar 13, 2020
Published to the GitHub Advisory Database Mar 13, 2020
Last updated Jan 9, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
High
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:N

EPSS score

0.050%
(21st percentile)

Weaknesses

CVE ID

CVE-2020-5240

GHSA ID

GHSA-9gjv-6qq6-v7qm

Source code

No known source code
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