SB2021021610 - Multiple vulnerabilities in Nagios XI
Published: February 16, 2021 Updated: February 7, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 secuirty vulnerabilities.
1) OS Command Injection (CVE-ID: CVE-2021-25298)
The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation in the file /usr/local/nagiosxi/html/includes/configwizards/cloud-vm/cloud-vm.inc.php. A remote authenticated attacker can pass specially crafted data to the application and execute arbitrary OS commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
2) OS Command Injection (CVE-ID: CVE-2021-25296)
The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation in the "/usr/local/nagiosxi/html/includes/configwizards/windowswmi/windowswmi.inc.php" file. A remote authenticated attacker can pass specially crafted data to the application and execute arbitrary OS commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
3) Cross-site scripting (CVE-ID: CVE-2021-25299)
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in the "/usr/local/nagiosxi/html/admin/sshterm.php" file. A remote authenticated attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
4) OS Command Injection (CVE-ID: CVE-2021-25297)
The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation in the file /usr/local/nagiosxi/html/includes/configwizards/switch/switch.inc.php. A remote authenticated attacker can pass specially crafted data to the application and execute arbitrary OS commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.