Security readout for executives and security teams
Plain-English summary
Nagios XI systems before version 5.8.5 have a local privilege escalation flaw in getprofile.sh. A person who already has local access could potentially gain higher privileges. The source bundle does not provide CVSS scoring or exploitation evidence, so urgency depends on whether untrusted users can access the Nagios XI host.
Executive priority
Treat as a targeted remediation item for monitoring infrastructure. Prioritize quickly if the Nagios XI server has shared local access, weak account controls, or stores sensitive infrastructure data.
Technical view
CVE-2021-37347 concerns insufficient validation of a directory-name argument passed to getprofile.sh in Nagios XI before 5.8.5. The provided sources classify it as local privilege escalation but do not provide exploit details, CVSS, CWE, or confirmed affected CPE data.
Likely exposure
Exposure is limited to Nagios XI deployments running versions before 5.8.5, especially where non-administrators have shell or local access. Internet exposure alone is not shown in the sources as sufficient for exploitation.
Exploitation context
The bundle does not show CISA KEV listing or active exploitation. The vulnerability is described as local privilege escalation, so the practical prerequisite appears to be existing local access to the Nagios XI server.
Researcher notes
Evidence is sparse: no CVSS, CWE, CPE, exploit status, or technical advisory detail is included beyond the getprofile.sh directory validation issue and version boundary. Avoid assuming remote exploitability without additional vendor evidence.
Mitigation direction
- Upgrade Nagios XI to version 5.8.5 or later.
- Review the Nagios XI changelog and vendor guidance for related fixes.
- Restrict shell and local account access on Nagios XI hosts.
- Audit local users and service accounts with access to the server.
Validation and detection
- Inventory Nagios XI versions across monitoring servers.
- Confirm no production instance is older than 5.8.5.
- Review access controls for local users on Nagios XI hosts.
- Check host logs for suspicious local privilege or script activity.
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.
Privilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-37347 mapping review
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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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.nagios.com/downloads/nagios-xi/change-log/CVE reference · x_refsource_MISC
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.