CVE-2021-21270 json
Cleartext Storage of Sensitive Information
published 5y ago modified 4mo ago also EUVD-2021-8647
- cvss
- 6.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 20%
- public exploits
- 0
- none known
Summary
OctopusDSC is a PowerShell module with DSC resources that can be used to install and configure an Octopus Deploy Server and Tentacle agent. In OctopusDSC version 4.0.977 and earlier a customer API key used to connect to Octopus Server is exposed via logging in plaintext. This vulnerability is patched in version 4.0.1002.
Patch / fix
- octopus octopusdsc 4.0.1002
Is CVE-2021-21270 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.2 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 2.1 | AV:L/AC:L/Au:N/C:P/I:N/A:N |
Affected products
- OctopusDeploy OctopusDSC
Classification
- Weakness
-
- CWE-319 Cleartext Transmission of Sensitive Information
References
-
github.com
/OctopusDeploy/OctopusDSC/pull/270
patch, third-party-advisory
-
github.com
/OctopusDeploy/OctopusDSC/commit/24b448e6ac964ed938475add494a145c0473ac42
patch, third-party-advisory
-
github.com
/OctopusDeploy/OctopusDSC/security/advisories/GHSA-phmm-rfg9-94fm
third-party-advisory
-
github.com
/OctopusDeploy/OctopusDSC/releases/tag/v4.0.1002
release-notes, third-party-advisory
Sources
- CVE List CVE-2021-21270
- NVD CVE-2021-21270
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.