High severity · published Jun 7, 2021
CVE-2021-3277
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…
7.2
CVSS
59%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)59.0% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NX
Nagios XI · Nagios
through 5.7.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-3277
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-3277
Third Party Advisory
https://asaf.me/2021/01/21/nagios-xi-5-7-5-remote-code-execution/
More from Nagios XI
8.8
CVE-2021-25297
Nagios XI OS Command Injection
8.8
CVE-2021-25298
Nagios XI OS Command Injection
8.8
CVE-2021-25296
Nagios XI OS Command Injection
8.8
CVE-2019-15949
Nagios XI Remote Code Execution Vulnerability
9.8
CVE-2024-13996
Nagios XI < 2024R1.1.3 Session Not Invalidated After Password Change