Уязвимость сервера универсальной системы мониторинга Zabbix Workstation, связанная с ошибками при обработке входных данных, позволяющая нарушителю выполнить произвольный код

Уязвимость компонента «Мониторинг хостов» универсальной системы мониторинга Zabbix, позволяющая нарушителю выполнить произвольный код

User with no permission to any of the Hosts can access and view host count & other statistics through System Information Widget in Global View Dashboard.

An administrator with restricted permissions can exploit the script execution functionality within the Monitoring Hosts section. The lack of default escaping for script parameters enabled this user ability to execute arbitrary code via the Ping script, thereby compromising infrastructure.

Zabbix server can perform command execution for configured scripts. After command is executed, audit entry is added to "Audit Log". Due to "clientip" field is not sanitized, it is possible to injection SQL into "clientip" and exploit time based blind SQL injection.

A non-admin user can change or remove important features within the Zabbix Agent application, thus impacting the integrity and availability of the application.

Zabbix allows to configure SMS notifications. AT command injection occurs on "Zabbix Server" because there is no validation of "Number" field on Web nor on Zabbix server side. Attacker can run test of SMS providing specially crafted phone number and execute additional AT commands on modem.

Setting SMS media allows to set GSM modem file. Later this file is used as Linux device. But due everything is a file for Linux, it is possible to set another file, e.g. log file and zabbix_server will try to communicate with it as modem. As a result, log file will be broken with AT commands and small part for log file content will be leaked to UI.

The front-end audit log allows viewing of unprotected plaintext passwords, where the passwords are displayed in plain text.

Within Zabbix, users have the ability to directly modify memory pointers in the JavaScript engine.

Uncontrolled resource consumption refers to a software vulnerability where a attacker or system uses excessive resources, such as CPU, memory, or network bandwidth, without proper limitations or controls. This can cause a denial-of-service (DoS) attack or degrade the performance of the affected system.