CVE-2023-22439

Severity: Low CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L

Components affected: Controller 6000/ Controller 7000

Version of Command Centre affected: 8.90 prior to vCR8.90.231204a (distributed in 8.90.1620 (MR2)), 8.80 prior to vCR8.80.231204a (distributed in 8.80.1369 (MR3)), 8.70 prior to vCR8.70.231204a (distributed in 8.70.2375 (MR5)), 8.60 prior to vCR8.60.231116a (distributed in 8.60.2550 (MR7)), all versions of 8.50 and prior.

Reported by: Sebastian Toscano of Amazon Security, Kevin Schaller of Amazon Security

Active exploitation of vulnerability*: Only in test environments.

Description of vulnerability: Improper input validation of a large HTTP request in the Controller 6000 and Controller 7000 optional diagnostic web interface (Port 80) can be used to perform a Denial of Service of the diagnostic web interface.

This issue affects: Gallagher Controller 6000 and 7000 8.90 prior to vCR8.90.231204a (distributed in 8.90.1620 (MR2)), 8.80 prior to vCR8.80.231204a (distributed in 8.80.1369 (MR3)), 8.70 prior to vCR8.70.231204a (distributed in 8.70.2375 (MR5)), 8.60 prior to vCR8.60.231116a (distributed in 8.60.2550 (MR7)), all versions of 8.50 and prior.

Mitigation: Ensure dipswitch 1 is turned off on all Controllers and the option, "Dipswitch 1 controls the diagnostic web interface", is not checked in Configuration Client on Controller property pages. Do not use the Controller override, "Enable WWW Connections". Refer to the Gallagher Command Centre Hardening Guide for more details.

Maintenance releases are now available for:

Important notes:

*This indicates whether Gallagher are aware of this being actively exploited against customer sites at the time of publication.