Security readout for executives and security teams
Plain-English summary
Nagios XI versions 5.11.1 and below are reported to have an authenticated SQL injection flaw in host escalation notification settings. An attacker needs access with Core Configuration Manager privileges to manage host escalations. If abused, the issue could let that user run arbitrary SQL against the application database.
Executive priority
Treat as a high-priority remediation item for Nagios XI environments because monitoring platforms hold sensitive operational visibility and trusted credentials. Prioritize systems with broad administrative access or many delegated configuration users.
Technical view
CVE-2023-40934 is a SQL injection in Nagios XI host escalation notification settings. The CVE description limits exploitation to authenticated attackers with privileges to manage host escalations in Core Configuration Manager. No CVSS, CWE, exploit details, or confirmed fixed version are provided in the supplied bundle.
Likely exposure
Exposure is most likely in Nagios XI deployments running version 5.11.1 or below where users beyond trusted administrators can manage host escalations in Core Configuration Manager.
Exploitation context
The supplied sources do not show CISA KEV listing or active exploitation. The vulnerability is post-authentication and privilege-dependent, reducing internet-wide exposure but increasing risk from compromised or over-privileged Nagios accounts.
Researcher notes
Evidence is limited to the CVE description and referenced Nagios and Outpost24 materials. The bundle does not include CVSS scoring, affected CPEs, patch version, exploit availability, or detailed root-cause information. Avoid assuming unauthenticated or remote exploitability beyond authenticated privileged access.
Mitigation direction
- Check Nagios security guidance for the vendor-supported fixed version or workaround.
- Upgrade affected Nagios XI systems according to vendor guidance.
- Restrict Core Configuration Manager access to trusted administrators only.
- Review users allowed to manage host escalations.
- Limit Nagios XI administrative access to trusted networks where practical.
Validation and detection
- Inventory Nagios XI instances and record deployed versions.
- Flag systems running Nagios XI 5.11.1 or below.
- Review accounts with host escalation management privileges.
- Audit recent host escalation notification setting changes.
- Check database and application logs for suspicious SQL errors or unexpected configuration changes.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Database behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2023-40934 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://www.nagios.com/products/security/CVE reference, mitre
- https://outpost24.com/blog/nagios-xi-vulnerabilities/CVE reference, mitre
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.