CVE-2021-3277
HighNagios 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.
Published Jun 7, 2021 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2021-3277 is a high-severity vulnerability (CVSS 7.2 v3.1) affecting Nagios Xi.
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 55% probability of exploitation in the next 30 days.
- Fixed versions are available, including Nagios Xi <=5.7.5, Nagios Xi 5.7.5.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
7.2
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
55%
Higher than 99.0% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
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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.
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Nagios XiNagios | See advisory | 5.7.5 |
Patched Releases
Nagios Xi
<=5.7.5
Timeline
Publicly disclosed
Jun 7, 2021
Last updated
Nov 21, 2024
Weakness Type
- CWE-434 Unrestricted Upload of File with Dangerous Type
References
FAQ
Common Questions.
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.
Affected: Nagios Xi. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Nagios Xi <=5.7.5, Nagios Xi 5.7.5.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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