Multiple vulnerabilities in Nagios XI
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2021-25298 CVE-2021-25296 CVE-2021-25299 CVE-2021-25297 |
| CWE-ID | CWE-78 CWE-79 |
| Exploitation vector | Network |
| Public exploit |
Vulnerability #1 is being exploited in the wild. Vulnerability #2 is being exploited in the wild. Vulnerability #4 is being exploited in the wild. |
| Vulnerable software Subscribe |
Nagios XI Server applications / Other server solutions |
| Vendor | nagios.org |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) OS Command Injection
EUVDB-ID: #VU50723
Risk: Medium
CVSSv3.1: 8.4 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]
CVE-ID: CVE-2021-25298
CWE-ID:
CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Exploit availability: Yes
DescriptionThe 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.
MitigationInstall updates from vendor's website.
Vulnerable software versionsNagios XI: 5.7.5
External linkshttp://nagios.com
http://assets.nagios.com/downloads/nagiosxi/versions.php
http://github.com/fs0c-sh/nagios-xi-5.7.5-bugs/blob/main/README.md
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
Yes. This vulnerability is being exploited in the wild.
2) OS Command Injection
EUVDB-ID: #VU50726
Risk: Medium
CVSSv3.1: 8.4 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]
CVE-ID: CVE-2021-25296
CWE-ID:
CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Exploit availability: Yes
DescriptionThe 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.
MitigationInstall updates from vendor's website.
Vulnerable software versionsNagios XI: 5.7.5
External linkshttp://nagios.com
http://assets.nagios.com/downloads/nagiosxi/versions.php
http://github.com/fs0c-sh/nagios-xi-5.7.5-bugs/blob/main/README.md
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
Yes. This vulnerability is being exploited in the wild.
3) Cross-site scripting
EUVDB-ID: #VU50725
Risk: Low
CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-25299
CWE-ID:
CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Exploit availability: No
DescriptionThe 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.
MitigationInstall updates from vendor's website.
Vulnerable software versionsNagios XI: 5.7.5
External linkshttp://nagios.com
http://assets.nagios.com/downloads/nagiosxi/versions.php
http://github.com/fs0c-sh/nagios-xi-5.7.5-bugs/blob/main/README.md
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
4) OS Command Injection
EUVDB-ID: #VU50724
Risk: Medium
CVSSv3.1: 8.4 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]
CVE-ID: CVE-2021-25297
CWE-ID:
CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Exploit availability: Yes
DescriptionThe 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.
MitigationInstall updates from vendor's website.
Vulnerable software versionsNagios XI: 5.7.5
External linkshttp://nagios.com
http://assets.nagios.com/downloads/nagiosxi/versions.php
http://github.com/fs0c-sh/nagios-xi-5.7.5-bugs/blob/main/README.md
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
Yes. This vulnerability is being exploited in the wild.
