In the trapper functionality of Zabbix Server 2.4.x, specifically crafted trapper packets can pass database logic checks, resulting in database writes. An attacker can set up a Man-in-the-Middle server to alter trapper requests made between an active Zabbix proxy and Server to trigger this vulnerability.
| Software | From | Fixed in |
|---|---|---|
| zabbix / zabbix | 2.4.0 | 2.4.8.x |
| debian / debian_linux | 8.0 | 8.0.x |
| debian / debian_linux | 9.0 | 9.0.x |