Two-Factor Authentication Flaw in Nextcloud Server by Nextcloud
CVE-2019-15612

5.9MEDIUM

Key Information:

Vendor

Nextcloud
Status
Nextcloud Server
Vendor
CVE Published:
4 February 2020

What is CVE-2019-15612?

A security flaw in Nextcloud Server 15.0.2 allows pending two-factor authentication (2FA) logins to remain active despite a user's password being reset. This oversight could potentially enable unauthorized access, compromising the security of user accounts and sensitive data. Immediate action is recommended to ensure users' 2FA sessions are terminated upon password changes.

Affected Version(s)

Nextcloud Server 15.0.3

References

https://hackerone.com/reports/486693
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https://nextcloud.com/security/advisory/?id=NC-SA-2020-001
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CVSS V3.1

Score:
5.9
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Physical
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2019-15612 : Two-Factor Authentication Flaw in Nextcloud Server by Nextcloud