Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openstack | Keystone | < 15.0.1 |
| Canonical | Ubuntu Linux | 18.04 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2020/05/07/1Mailing ListThird Party Advisory
- https://bugs.launchpad.net/keystone/+bug/1872737Third Party Advisory
- https://security.openstack.org/ossa/OSSA-2020-003.htmlVendor Advisory
- https://usn.ubuntu.com/4480-1/Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/05/06/4Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/05/07/1Mailing ListThird Party Advisory
- https://bugs.launchpad.net/keystone/+bug/1872737Third Party Advisory
- https://security.openstack.org/ossa/OSSA-2020-003.htmlVendor Advisory
- https://usn.ubuntu.com/4480-1/Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/05/06/4Mailing ListThird Party Advisory
FAQ
What is CVE-2020-12692?
CVE-2020-12692 is a vulnerability with a CVSS score of 5.4 (MEDIUM). 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 u...
How severe is CVE-2020-12692?
CVE-2020-12692 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-12692?
Check the references section above for vendor advisories and patch information. Affected products include: Openstack Keystone, Canonical Ubuntu Linux.