VulnerabilityModified
CVE-2021-40344
In the Custom Includes section of the Admin panel, an administrator can upload files with arbitrary extensions as long as the MIME type corresponds to an image.
HIGH 7.2EPSS 66.2%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 66.2%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
An issue was discovered in Nagios XI 5.8.5. In the Custom Includes section of the Admin panel, an administrator can upload files with arbitrary extensions as long as the MIME type corresponds to an image. Therefore it is possible to upload a crafted PHP script to achieve remote command execution.
- CVSS 3.1
- 7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 66.19% probability · 99th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-434
- Affected
- nagios/nagios xi
- Source
- cve@mitre.org
References
- https://assets.nagios.com/downloads/nagiosxi/CHANGES-5.TXTRelease Notes, Vendor Advisory
- https://synacktiv.comNot Applicable
- https://www.synacktiv.com/sites/default/files/2021-10/Nagios_XI_multiple_vulnerabilities_0.pdfExploit, Third Party Advisory
- https://assets.nagios.com/downloads/nagiosxi/CHANGES-5.TXTRelease Notes, Vendor Advisory
- https://synacktiv.comNot Applicable
- https://www.synacktiv.com/sites/default/files/2021-10/Nagios_XI_multiple_vulnerabilities_0.pdfExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.