Security readout for executives and security teams
Plain-English summary
This Octopus Deploy flaw can let an authenticated user with permission to edit variables scope variables to targets beyond what their team should access. The business risk is a breakdown of team isolation: users may see machines outside their scoped environments.
Executive priority
Treat this as a moderate access-control issue. Prioritize remediation where Octopus Deploy is used for production deployments or where team scoping separates sensitive environments.
Technical view
CVE-2018-9039 affects Octopus Deploy 2.0 and later before 2018.3.7. The issue is an authorization/scoping weakness in variable editing, allowing certain users to scope variables to targets beyond their intended permissions and see machines outside their team's environments.
Likely exposure
Exposure is limited to Octopus Deploy deployments before 2018.3.7 where authenticated users have variable edit permissions and team/environment scoping is relied on for access separation.
Exploitation context
The provided sources do not indicate active exploitation, KEV listing, public exploit code, or unauthenticated abuse. Exploitation requires an authenticated user with variable edit permissions.
Researcher notes
The bundle lacks CVSS, CWE, detailed patch notes, and exploit evidence. Analysis is based on the CVE description and Octopus references, which frame the flaw as improper authorization around variable target scoping.
Mitigation direction
- Upgrade Octopus Deploy to 2018.3.7 or later.
- Review Octopus Deploy vendor issue 4407 and release comparison notes.
- Restrict variable edit permissions to users who need them.
- Review team, environment, and target scoping for least privilege.
Validation and detection
- Inventory Octopus Deploy versions and confirm none are before 2018.3.7.
- Identify users and teams with variable edit permissions.
- Review variable scopes for targets outside intended team environments.
- Confirm post-upgrade users cannot view machines beyond assigned environments.
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.
CVE-2018-9039 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.
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://github.com/OctopusDeploy/Issues/issues/4407CVE reference · x_refsource_CONFIRM
- https://octopus.com/downloads/compare?from=2018.3.6&to=2018.3.7CVE reference · x_refsource_CONFIRM
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.