CVE-2020-12692

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.

• CWE-294
• CWE-347

• http://www.openwall.com/lists/oss-security/2020/05/07/1Mailing List, Third 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 List, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2020/05/07/1Mailing List, Third 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 List, Third Party Advisory

Published

May 7, 2020

Last Modified

Jun 17, 2026

Status

Modified

• Same Subject, Wrong User: A Cross-Issuer Account Takeover in n8nStrix found an identity-binding bug in n8n's token-exchange flow enabling account takeover.
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