CVE-2020-12692

MediumCVSS 5.4/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 5.4/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Weakness enumeration

CWE-294 CWE-347

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

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

Timeline

Published: May 7, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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