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GHSA-rqw2-hhrf-7936

OpenStack Keystone does not check signature TTL of the EC2 credential auth method

Source: GitHub Advisory Database (reviewed) Moderate CVE-2020-12692

Packages

EcosystemPackageAffectedFixed in
PyPI keystone >= 16.0.0.0rc1, < 16.0.0 16.0.0
PyPI keystone < 15.0.1 15.0.1

Details

As written in the advisory (Markdown source, shown as plain text).

An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. The EC2 API doesn't have a signature TTL check for AWS Signature V4. An attacker can sniff the Authorization header, and then use it to reissue an OpenStack token an unlimited number of times.

References

External links from the advisory. They lead to third-party sites.