SB2019091042 - Missing Authentication for Critical Function in Supervisor

Description

This security bulletin contains information about 1 security vulnerability.

1) Missing Authentication for Critical Function (CVE-ID: CVE-2019-12105)

The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.

** DISPUTED ** In Supervisor through 4.0.2, an unauthenticated user can read log files or restart a service. Note: The maintainer responded that the affected component, inet_http_server, is not enabled by default but if the user enables it and does not set a password, Supervisor logs a warning message. The maintainer indicated the ability to run an open server will not be removed but an additional warning was added to the documentation.

Remediation

Install update from vendor's website.

References

• http://supervisord.org/configuration.html#inet-http-server-section-settings
• https://github.com/Supervisor/supervisor/commit/4e334d9cf2a1daff685893e35e72398437df3dcb
• https://github.com/Supervisor/supervisor/issues/1245