Vulnerability Report

CVE-2020-13977

Title: Nagios Core Nagiosgraph Admin Credential Disclosure

Other

Proof Of Concept

No public PoC currently indexed for CVE-2020-13977.

CWE Category CWE-829
Published Date Jun 09, 2020
Modified Date Jun 17, 2026
Exploit Status Not Found
Score 4.9 CVSS v3.1
Exploit Probability (EPSS)
2.73%

Vulnerability Summary

CVE-2020-13977: Nagios 4.4.5 allows an attacker, who already has administrative access to change the "URL for JSON CGIs" configuration setting, to modify the Alert Histogram and Trends code via crafted versions of the archivejson.cgi, objectjson.cgi, and statusjson.cgi files. NOTE: this vulnerability has been mistakenly associated with CVE-2020-1408.

Impacted Vendors

N
nagios 1

Reference Links

https://anhtai.me/nagios-core-4-4-5-url-injection/ https://github.com/sawolf/nagioscore/tree/url-injection-fix https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5P6NHNG2SJAM6DXVTXQH3AOJ4WQVKJUE/ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H7T6MSDWMBJEVVFSOK7DOYJJWDAFQCEQ/ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JUEIABR4Y6L5J5MZDFWU46ZWXMJO64U3/ https://www.nagios.org/projects/nagios-core/history/4x/ https://anhtai.me/nagios-core-4-4-5-url-injection/ https://github.com/sawolf/nagioscore/tree/url-injection-fix https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5P6NHNG2SJAM6DXVTXQH3AOJ4WQVKJUE/ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H7T6MSDWMBJEVVFSOK7DOYJJWDAFQCEQ/ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JUEIABR4Y6L5J5MZDFWU46ZWXMJO64U3/ https://www.nagios.org/projects/nagios-core/history/4x/
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
4.9
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
4.0
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:S/C:N/I:P/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2020-13977 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

Affected Stack

No specific products linked.