Critical severity · published May 24, 2021
CVE-2020-28900
Insufficient Verification of Data Authenticity in Nagios Fusion 4.1.8 and earlier and Nagios XI 5.7.5 and earlier allows for Escalation of Privileges or Code Execution as root via…
9.8
CVSS
3.1%
EPSS
No
On KEV
Description
Insufficient Verification of Data Authenticity in Nagios Fusion 4.1.8 and earlier and Nagios XI 5.7.5 and earlier allows for Escalation of Privileges or Code Execution as root via vectors related to an untrusted update package to upgrade_to_latest.sh.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.1% · higher than 88% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FU
Fusion · Nagios
through 4.1.8 · source: NVD
NX
Nagios XI · Nagios
through 5.7.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-28900
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-28900
Third Party Advisory
http://packetstormsecurity.com/files/162783/Nagios-XI-Fusion-Privilege-Escalation-Cross-Site-Scripting-Code-Execution.html
Exploit
https://skylightcyber.com/2021/05/20/13-nagios-vulnerabilities-7-will-shock-you/
Release Notes
https://www.nagios.com/downloads/nagios-xi/change-log/
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