Spinnaker's Rosco microservice vulnerable to improper log masking on AWS Packer builds
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-532.
Summary
Spinnaker is an open source, multi-cloud continuous delivery platform for releasing software changes, and Spinnaker's Rosco microservice produces machine images. Rosco prior to versions 1.29.2, 1.28.4, and 1.27.3 does not property mask secrets generated via packer builds. This can lead to exposure of sensitive AWS credentials in packer log files. Versions 1.29.2, 1.28.4, and 1.27.3 of Rosco contain fixes for this issue. A workaround is available. It's recommended to use short lived credentials via role assumption and IAM profiles. Additionally, credentials can be set in `/home/spinnaker/.aws/credentials` and `/home/spinnaker/.aws/config` as a volume mount for Rosco pods vs. setting credentials in roscos bake config properties. Last even with those it's recommend to use IAM Roles vs. long lived credentials. This drastically mitigates the risk of credentials exposure. If users have used static credentials, it's recommended to purge any bake logs for AWS, evaluate whether AWS_ACCESS_KEY, SECRET_KEY and/or other sensitive data has been introduced in log files and bake job logs. Then, rotate these credentials and evaluate potential improper use of those credentials.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| spinnaker | spinnaker | before 1.27.3; 1.28.0 to before 1.28.4; 1.29.0 to before 1.29.2 | 1.27.3, 1.28.4, 1.29.2 | Patch available | CNA |
- spinnaker Vendorspinnaker Affected before 1.27.3; 1.28.0 to before 1.28.4; 1.29.0 to before 1.29.2 Fixed in 1.27.3, 1.28.4, 1.29.2 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:linuxfoundation:spinnaker:*:*:*:*:*:*:*:* | before 1.27.3; 1.28.0 to before 1.28.4; 1.29.0 to before 1.29.2 | Vulnerable | backstage |
- cpe:2.3:a:linuxfoundation:spinnaker:*:*:*:*:*:*:*:* Versions before 1.27.3; 1.28.0 to before 1.28.4; 1.29.0 to before 1.29.2 Vulnerable ·backstage
Remediation
- Fix · CNA spinnaker (spinnaker) Fixed in 1.27.3, 1.28.4, 1.29.2
Timeline
- 2026-10-02 Threatist record created from CVE-2022-23506
References
More spinnaker vulnerabilities
- TI-2021-16529 Path Traversal in spinnaker CVSS 3.1HIGH 7.1
- TI-2021-19638 Improper Access Control in spinnaker CVSS 3.1CRITICAL 10.0
- TI-2026-25122 Spinnaker vulnerable to RCE via expression parsing due to unrestricted context handling CVSS 3.1CRITICAL 10.0
- TI-2026-25113 Improper input validation in spinnaker CVSS 3.1CRITICAL 10.0
- TI-2026-32679 Spinnaker: Non-safe yaml deserialization allowing RCE when using specific types CVSS 3.1HIGH 8.8
- TI-2026-39859 Spinnaker: Improper yaml processing on kustomize bake operations CVSS 3.1HIGH 7.5
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences