Security readout for executives and security teams
Plain-English summary
Nagios XI before 2024R1 has a critical access-control flaw in its Web SSH Terminal. A low-privileged remote user may reach or interact with terminal functionality they should not be authorized to use, creating risk of command execution and sensitive information exposure.
Executive priority
Treat this as urgent for any Nagios XI deployment below 2024R1. Monitoring platforms often hold sensitive operational access, and terminal abuse could affect both visibility and managed systems.
Technical view
The issue is CWE-862 missing access control in Nagios XI Web SSH Terminal. Sources describe affected Nagios XI versions prior to 2024R1. CVSS 4.0 score is 9.4, with low attack complexity, low privileges required, no user interaction, and high confidentiality, integrity, and availability impacts.
Likely exposure
Organizations running Nagios XI versions older than 2024R1 are the relevant exposure group, especially where low-privileged users can authenticate to Nagios XI or the management interface is broadly reachable.
Exploitation context
The provided bundle does not show CISA KEV listing or cited evidence of active exploitation. Risk remains high because the described flaw may allow unauthorized terminal interaction by a remote low-privileged attacker.
Researcher notes
Avoid assuming exploit availability from severity alone. Validate version exposure, Web SSH Terminal reachability, and user roles. The source bundle names a patched release boundary but does not provide detailed endpoint-level indicators or exploitation evidence.
Mitigation direction
- Upgrade Nagios XI deployments older than 2024R1 to 2024R1 or later.
- Review the Nagios security page and changelog for vendor remediation details.
- Restrict Nagios XI management access to trusted administrative networks until upgraded.
- Review low-privileged account access to Nagios XI Web SSH Terminal functionality.
Validation and detection
- Inventory Nagios XI instances and record exact installed versions.
- Flag any Nagios XI instance running a version earlier than 2024R1.
- Confirm whether the Web SSH Terminal feature is enabled or reachable.
- Review logs for unexpected terminal access by low-privileged users.
- Confirm remediation by verifying the upgraded Nagios XI version.
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.
CWE-862: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2023-7317 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
- Critical
- CVSS
- 9.4 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
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
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H——VulnCheckVulnerability scoring details
Base CVSS 4.0 score
9.4CriticalVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
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/#nagios-xiCVE reference, VulnCheck · vendor-advisory, patch
- https://www.nagios.com/changelog/nagios-xi/CVE reference, VulnCheck · release-notes, patch
- https://www.vulncheck.com/advisories/nagios-xi-web-ssh-terminal-missing-access-controlCVE reference, VulnCheck · third-party-advisory
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.
Missing Authorization
Missing Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.