SB2020020431 - Improper Authentication in Nextcloud Server
Published: February 4, 2020 Updated: July 17, 2020
Security Bulletin ID
SB2020020431
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Authentication (CVE-ID: CVE-2019-15617)
CWE-ID: CWE-287 - Improper Authentication
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote authenticated user to read and manipulate data.
A missing check in Nextcloud Server 17.0.0 allowed an attacker to set up a new second factor when trying to login.
Remediation
Install update from vendor's website.