Security readout for executives and security teams
Plain-English summary
Atlassian Fisheye and Crucible before 4.8.1 exposed information about configured Jira application links through a REST resource. This could help an attacker map connected systems and trust relationships, but the provided sources do not include CVSS, detailed impact, or evidence of active exploitation.
Executive priority
Treat as a focused Atlassian hygiene issue. It is not evidenced as actively exploited here, but it can disclose integration details that support follow-on attacks. Prioritize upgrade where Fisheye or Crucible is internet-facing or linked to sensitive Jira environments.
Technical view
CVE-2020-4017 affects the crucible-jira-ril plugin endpoint /rest/jira-ril/1.0/jira-rest/applinks in Atlassian Fisheye and Crucible before 4.8.1. The issue is an information disclosure vulnerability allowing remote attackers to obtain details about configured Jira application links.
Likely exposure
Organizations running Atlassian Fisheye or Crucible versions earlier than 4.8.1 are potentially exposed, especially where the service is reachable by untrusted networks. Exposure depends on deployment configuration and configured Jira application links.
Exploitation context
The source bundle states remote attackers can obtain application-link information. It does not cite public exploitation, proof-of-concept material, or CISA KEV listing; KEV is false in the provided data.
Researcher notes
Evidence is limited to the CVE description and Atlassian issue references. No CVSS, CWE, authentication requirement, exploit detail, or complete affected-version matrix is present in the supplied bundle. The only fixed-version signal is “before version 4.8.1.”
Mitigation direction
- Upgrade Fisheye and Crucible to version 4.8.1 or later.
- Review Atlassian CRUC-8470 and FE-7286 for vendor-specific remediation guidance.
- Limit network access to Fisheye and Crucible until fixed.
- Review configured Jira application links for unnecessary trust relationships.
Validation and detection
- Inventory Fisheye and Crucible versions across all environments.
- Confirm affected systems are on 4.8.1 or later.
- Check whether Fisheye or Crucible is reachable from untrusted networks.
- Review logs for access to the affected applinks REST resource.
- Document configured Jira application links and business owners.
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-2020-4017 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://jira.atlassian.com/browse/CRUC-8470CVE reference · x_refsource_MISC
- https://jira.atlassian.com/browse/FE-7286CVE 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.