Security readout for executives and security teams
Plain-English summary
HashiCorp Boundary workers could store rotated credentials in plaintext on disk even when KMS encryption was configured. The business risk is credential disclosure if someone can access the affected worker disk. The vendor says the issue is fixed in Boundary 0.12.0.
Executive priority
Prioritize remediation for Boundary deployments protecting sensitive access paths. This is not documented as internet-exploited, but plaintext credentials can turn local disk access into broader access exposure.
Technical view
CVE-2023-0690 affects HashiCorp Boundary 0.10.0 through 0.11.2 using PKI-based workers with KMS defined. After automatic credential rotation, new credentials may not be encrypted by the intended KMS and may be written plaintext to worker disk. The CVSS 3.1 score is 5.0, with high confidentiality impact.
Likely exposure
Exposure appears limited to Boundary deployments running affected versions with PKI-based workers, KMS configuration, and automatic credential rotation. Practical risk depends on whether rotations occurred and who can access worker disks or backups.
Exploitation context
CISA KEV status is false, and the provided sources do not report active exploitation. The CVSS vector indicates local access, high privileges, high attack complexity, and user interaction, so this is mainly a credential exposure risk after host or disk access.
Researcher notes
Evidence is narrow but clear: the issue concerns rotated credentials on PKI workers when KMS is configured. Sources do not provide public exploit details, affected CPEs, or mitigation beyond the fixed version, so validation should focus on configuration and rotation history.
Mitigation direction
- Upgrade HashiCorp Boundary to version 0.12.0 or later.
- Review HashiCorp HCSEC-2023-03 for deployment-specific guidance.
- Treat exposed worker-disk credentials as potentially compromised.
- Rotate any credentials that may have been stored plaintext.
- Restrict and audit access to Boundary worker disks and backups.
Validation and detection
- Inventory Boundary versions across controllers and workers.
- Identify PKI-based workers with KMS configured.
- Confirm whether automatic credential rotation occurred on affected versions.
- Review worker disk storage for plaintext rotated credentials.
- Verify upgraded workers no longer create plaintext credentials after rotation.
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
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Open ATT&CK lookupCVE-2023-0690 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:N/A:N
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 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:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:N/A:N0.64Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5MediumVector: CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:N/A:N
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.
Cleartext Storage of Sensitive Information
Cleartext Storage of Sensitive Information represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.