CVEvulnerability
CVE-2020-12692
5.4 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2020-05-07
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- CVSS 2.0 ([email protected])
- 5.5 MEDIUM — AV:N/AC:L/Au:S/C:P/I:P/A:N
- Weaknesses
- CWE-294, CWE-347
Description
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 configurations
• openstack keystone (< 15.0.1)
• openstack keystone 16.0.0
• canonical ubuntu linux 18.04
Related
References
- http://www.openwall.com/lists/oss-security/2020/05/07/1 Mailing List, Third Party Advisory
- https://bugs.launchpad.net/keystone/+bug/1872737 Third Party Advisory
- https://security.openstack.org/ossa/OSSA-2020-003.html Vendor Advisory
- https://usn.ubuntu.com/4480-1/ Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/05/06/4 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/05/07/1 Mailing List, Third Party Advisory
- https://bugs.launchpad.net/keystone/+bug/1872737 Third Party Advisory
- https://security.openstack.org/ossa/OSSA-2020-003.html Vendor Advisory
- https://usn.ubuntu.com/4480-1/ Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/05/06/4 Mailing List, Third Party Advisory