medium5.4
CVE-2020-12692
OpenStack Keystone does not check signature TTL of the EC2 credential auth method
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | keystone | >= 16.0.0.0rc1, < 16.0.0 | 16.0.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Openstack | Keystone | before 15.0.1 Version 16.0.0 |
| Canonical | Ubuntu Linux | Version 18.04 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- http://www.openwall.com/lists/oss-security/2020/05/07/1
- https://bugs.launchpad.net/keystone/+bug/1872737
- https://security.openstack.org/ossa/OSSA-2020-003.html
- https://usn.ubuntu.com/4480-1/
- https://www.openwall.com/lists/oss-security/2020/05/06/4
- https://github.com/advisories/GHSA-rqw2-hhrf-7936
- https://nvd.nist.gov/vuln/detail/CVE-2020-12692
- https://opendev.org/openstack/keystone/commit/ab89ea749013e7f2c46260f68504f5687763e019
- https://github.com/pypa/advisory-database/tree/main/vulns/keystone/PYSEC-2020-56.yaml
- https://usn.ubuntu.com/4480-1