Nagios XI up to 2024R1.4.2 process_perfdata.pl permission assignment

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Nagios XI. This issue affects some unknown processing of the file process_perfdata.pl. Executing a manipulation can lead to permission assignment. The identification of this vulnerability is CVE-2025-34287. The attack can only be executed locally. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Nagios XI and classified as problematic. This vulnerability affects an unknown code block of the file process_perfdata.pl. The manipulation with an unknown input leads to a permission assignment vulnerability. The CWE definition for the vulnerability is CWE-732. The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Nagios XI versions prior to 2024R2 contain an improperly owned script, process_perfdata.pl, which is executed periodically as the nagios user but owned by www-data. Because the file was writable by www-data, an attacker with web server privileges could modify its contents, leading to arbitrary code execution as the nagios user when the script is next run. This improper ownership and permission configuration enables local privilege escalation.

The weakness was shared by M. Cory Billington. The advisory is shared for download at nagios.com. This vulnerability was named CVE-2025-34287 since 04/15/2025. The exploitation appears to be easy. The attack needs to be approached locally. There are known technical details, but no exploit is available.

Upgrading to version 2024R2 eliminates this vulnerability. The upgrade is hosted for download at nagios.com.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2025-2459). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Nagios Enterprises Nagios XI

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Permission assignment
CWE: CWE-732 / CWE-275 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: XI 2024R2

Timelineinfo

04/15/2025 CVE reserved
10/31/2025 +199 days Advisory disclosed
10/31/2025 +0 days VulDB entry created
11/08/2025 +8 days VulDB entry last update

Sourcesinfo

Advisory: nagios.com
Researcher: M. Cory Billington
Status: Confirmed

CVE: CVE-2025-34287 (🔒)
GCVE (CVE): GCVE-0-2025-34287
GCVE (VulDB): GCVE-100-330664
CERT Bund: WID-SEC-2025-2459 - Nagios Enterprises Nagios XI: Mehrere Schwachstellen

Entryinfo

Created: 10/31/2025 07:43
Updated: 11/08/2025 09:04
Changes: 10/31/2025 07:43 (69), 10/31/2025 12:52 (7), 11/08/2025 09:04 (11)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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