SB2017060237 - Missing Authorization in Zulip Server
Published: June 2, 2017 Updated: August 8, 2020
Security Bulletin ID
SB2017060237
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 security vulnerability.
1) Missing Authorization (CVE-ID: CVE-2017-0896)
The vulnerability allows a remote authenticated user to manipulate data.
Zulip Server 1.5.1 and below suffer from an error in the implementation of the invite_by_admins_only setting in the Zulip group chat application server that allowed an authenticated user to invite other users to join a Zulip organization even if the organization was configured to prevent this.
Remediation
Install update from vendor's website.