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PYSEC-2020-56

Details

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.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI / keystone

Introduced in: 0 Fixed in: 15.0.1

Fix pip install --upgrade 'keystone>=15.0.1'

References

https://www.openwall.com/lists/oss-security/2020/05/06/4 [WEB]
https://bugs.launchpad.net/keystone/+bug/1872737 [WEB]
http://www.openwall.com/lists/oss-security/2020/05/07/1 [WEB]
https://security.openstack.org/ossa/OSSA-2020-003.html [WEB]
https://usn.ubuntu.com/4480-1/ [WEB]