NextcloudGHSA-9V72-9XV5-3P7CAbility to by-pass second factor
7.3 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
6.6 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
15.5%
Description
Impact
Under some circumstance it was possible to bypass the second factor of 2FA after successfully providing the user credentials.
Patches
It is recommended that the Nextcloud Server is upgraded to 26.0.13, 27.1.8 or 28.0.4
It is recommended that the Nextcloud Enterprise Server is upgraded to 21.0.9.17, 22.2.10.22, 23.0.12.17, 24.0.12.13, 25.0.13.8, 26.0.13, 27.1.8 or 28.0.4
Workarounds
- No workaround available
References
For more information
If you have any questions or comments about this advisory:
- Create a post in nextcloud/security-advisories
- Customers: Open a support ticket at portal.nextcloud.com
Related
7.3 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
6.6 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
15.5%