CVE-2025-34283
Nagios Xi ≤ 2024
Raw vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XSummary
CVE-2025-34283 is a high-severity Exposure of Sensitive System Information to an Unauthorized Control Sphere (CWE-497) vulnerability in Nagios Nagios Xi. Its CVSS base score is 7.1 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique System Information Discovery (T1082); ranked in the top 41% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified map to AC-3 (Access Enforcement) and AC-4 (Information Flow Enforcement) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
Nagios XI versions prior to 2024R1.4.2 contain an information disclosure flaw (CWE-497) that exposes API keys to authenticated users lacking API privileges when the Neptune theme is active. The affected component is the web interface handling user API key display, allowing an unauthorized viewer to retrieve either their own key or keys belonging to other users.
An authenticated attacker with low privileges can exploit the issue over the network to obtain valid API credentials, enabling subsequent unauthorized access to Nagios XI APIs without requiring additional user interaction or elevated permissions. The CVSS 7.1 score reflects the combination of network reachability, low attack complexity, and high confidentiality impact.
Nagios advisory information and the associated changelog indicate that the issue is resolved in version 2024R1.4.2; administrators are directed to apply the update via the vendor’s security and changelog resources. The VulnCheck advisory further references these Nagios pages for patch and mitigation guidance.
EPSS remains low, with a current value of 0.0155 and a peak of 0.0162, showing no material increase after disclosure.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-37214
Vulnerability Data
Nagios XI versions prior to 2024R1.4.2 revealed API keys to users who were not authorized for API access when using Neptune themes. An authenticated user without API privileges could view another user's or their own API key value.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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- 5 hardening rules · 4 OS baselines
V14.1.2
Mitigating Controls (NIST 800-53 r5) AI
Enforces approved authorizations for logical access, directly stopping unauthorized actors from reaching sensitive system information.
Enforces information flow policies that block sensitive system data from crossing into unauthorized control spheres.
Limits privileges so that only the minimum necessary access is granted, reducing the chance of exposing system-level details.
Controls communications at external and key internal boundaries to keep sensitive system information inside authorized spheres.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Enforcing least-privilege access permissions directly prevents unauthorized actors from reaching sensitive system information.
Protecting environments from unauthorized logical access stops exposure of internal system details to outsiders.
Secure-development practices reduce the chance of code paths that leak sensitive system information.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Keeping internal maps, directories, and signage from public view prevents disclosure of system or facility details that could aid reconnaissance or targeted attacks.
Hardening callouts derived
Configuration rules from DISA STIG baselines that bear on weaknesses of the type cited by this CVE. Each rule is shown with the relationship its mapping actually records, against the CWE it was authored against. Derived via CVE→CWE over `controls_xwalks` (authoritative rows only; rows rated `none` are excluded).
Oracle Linux 8 (2 rules)
- V-248551 A sticky bit must be set on all OL 8 public directories to prevent unauthorized and unintended information transferred via shared system resources. prevents CWE-497
- V-248580 OL 8 must prevent kernel profiling by unprivileged users. prevents CWE-497
RHEL 8 (1 rule)
- V-230270 RHEL 8 must prevent kernel profiling by unprivileged users. prevents CWE-497
Ubuntu 22.04 (1 rule)
- V-260470 Ubuntu 22.04 LTS, when booted, must require authentication upon booting into single-user and maintenance modes. prevents CWE-497
Ubuntu 24.04 (1 rule)
- V-270675 Ubuntu 24.04 LTS when booted must require authentication upon booting into single-user and maintenance modes. prevents CWE-497