CVE-2021-3277

Description

Nagios XI 5.7.5 and earlier allows authenticated admins to upload arbitrary files due to improper validation of the rename functionality in custom-includes component, which leads to remote code execution by uploading php files.

Category

7.2
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 32.14% Top 5%
Third-Party Advisory asaf.me
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://asaf.me/2021/01/21/nagios-xi-5-7-5-remote-code-execution/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-3277?
CVE-2021-3277 has been scored as a high severity vulnerability.
How to fix CVE-2021-3277?
To fix CVE-2021-3277, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-3277 being actively exploited in the wild?
It is possible that CVE-2021-3277 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~32% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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