Security readout for executives and security teams
Plain-English summary
During initial setup of Octopus Server with an external SQL database, the database password could be written in plaintext to the OctopusServer.txt log file. The main risk is credential exposure to anyone with access to those logs.
Executive priority
Treat this as a credential hygiene issue with moderate urgency. Prioritize environments where Octopus manages sensitive deployments or where logs are broadly accessible or retained externally.
Technical view
CVE-2021-31816 is a cleartext storage issue in Octopus Deploy Octopus Server. When external SQL database configuration is performed, the database password is logged in plaintext during initial configuration. The source bundle does not provide CVSS, CWE, exploit details, or a confirmed remediation version beyond the listed advisory reference.
Likely exposure
Exposure is likely limited to Octopus Server instances configured with an external SQL database, especially where OctopusServer.txt logs are retained, copied, backed up, or accessible to support, administrators, or monitoring systems.
Exploitation context
The provided data does not indicate CISA KEV listing or active exploitation. Practical abuse would depend on access to the affected log file and whether the exposed SQL password remains valid.
Researcher notes
Evidence is narrow but clear: plaintext database password logging during initial external SQL setup. The bundle lacks CVSS, CWE, detailed affected range semantics, exploit status, and explicit fix instructions, so remediation should be anchored to Octopus guidance.
Mitigation direction
- Review the Octopus advisory for vendor-confirmed fixed versions or workarounds.
- Restrict access to OctopusServer.txt and any log backups or exports.
- Rotate the external SQL database password if it may have been logged.
- Remove or securely redact historical logs containing the plaintext password.
- Audit monitoring and backup systems that may have copied the log.
Validation and detection
- Identify Octopus Server instances configured with an external SQL database.
- Check OctopusServer.txt from initial configuration periods for exposed SQL passwords.
- Confirm whether the exposed database credential is still active.
- Review log retention, backup, and support bundle locations for copied logs.
- Verify current Octopus Server version against vendor advisory guidance.
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.
Credential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupDatabase behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-31816 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://advisories.octopus.com/adv/2021-05---Cleartext-Storage-of-Sensitive-Information-%28CVE-2021-31816%29.2121793537.htmlCVE 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.