CVE-2020-12692

MEDIUM

OpenStack Keystone <15.0.1-16.0.0 - Info Disclosure

Title source: llm

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.

References (5)

[Vendor Advisory] https://security.openstack.org/ossa/OSSA-2020-003.html

[Third Party Advisory] https://bugs.launchpad.net/keystone/+bug/1872737

[Mailing List, 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

[Third Party Advisory] https://usn.ubuntu.com/4480-1/

Scores

CVSS v3 5.4

EPSS 0.0014

EPSS Percentile 33.7%

Attack Vector NETWORK

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

Details

CWE

CWE-294 CWE-347

Status published

Products (4)

canonical/ubuntu_linux 18.04

openstack/keystone 16.0.0

openstack/keystone < 15.0.1

pypi/keystone 16.0.0.0rc1 - 16.0.0PyPI

Published May 07, 2020

Tracked Since Feb 18, 2026