Security readout for executives and security teams
Plain-English summary
This issue affects Atlassian cloudtoken on Linux. If the daemon is exposed on a local subnet, an unauthenticated person on that subnet could obtain temporary AWS credentials tied to a user role. The main business risk is unauthorized AWS access from inside the network segment.
Executive priority
Treat this as high priority if cloudtoken was used on Linux in AWS-connected environments, because credential exposure can become cloud account access.
Technical view
CVE-2018-13390 covers unauthenticated network access to the cloudtoken daemon on Linux in versions 0.1.1 before 0.1.24. The reported impact is disclosure of temporary AWS credentials for users' roles to an attacker on the same subnet. No CVSS, CWE, or detailed vendor mitigation is present in the provided bundle.
Likely exposure
Exposure is most likely on Linux systems running Atlassian cloudtoken daemon mode below 0.1.24, where the daemon is reachable by other hosts on the same subnet.
Exploitation context
The provided sources describe same-subnet, unauthenticated access leading to temporary AWS credential exposure. They do not show public exploitation, exploit maturity, or CISA KEV listing.
Researcher notes
Evidence is sparse in the provided bundle. The key confirmed facts are product, Linux daemon mode, affected version range, same-subnet unauthenticated access, and temporary AWS credential exposure. No patch notes beyond the version boundary are supplied.
Mitigation direction
- Upgrade cloudtoken to version 0.1.24 or later where applicable.
- Check Atlassian's CVE advisory for any deployment-specific guidance.
- Restrict access to the cloudtoken daemon to only required trusted systems.
- Review AWS role permissions associated with affected users.
- Rotate temporary credentials if exposure is suspected.
Validation and detection
- Inventory Linux hosts for Atlassian cloudtoken installations.
- Confirm cloudtoken versions are not below 0.1.24.
- Identify any hosts running cloudtoken in daemon mode.
- Verify daemon reachability is limited to trusted systems.
- Review AWS access logs for unexpected role credential use.
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
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CVE-2018-13390 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://bitbucket.org/atlassian/cloudtoken/wiki/CVE-2018-13390%20-%20Exposed%20credentials%20in%20daemon%20mode%20on%20LinuxCVE 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.