CVE-2019-19316 — When using the Azure backend with a shared access signature (SAS), Terraform ver

When using the Azure backend with a shared access signature (SAS), Terraform versions prior to 0.12.17 may transmit the token and state snapshot using cleartext HTTP.

01What is this vulnerability?

When using the Azure backend with a shared access signature (SAS), Terraform versions prior to 0.12.17 may transmit the token and state snapshot using cleartext HTTP.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-12-02T20:50:44.000Z
• Last modified: 2024-08-05T02:16:46.943Z

09References

• github.com — https://github.com/hashicorp/terraform/security/advisories/GHSA-4rvg-555h-r626