CVSS 3.1
5.4 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:NCVE-2020-12692
Medium (5.4). EPSS 0.7% chance of exploitation in the next 30 days. Fixed in keystone 15.0.1, 16.0.0.
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.
Severity
- EPSS
- 0.7% chance of exploitation in the next 30 days; higher than 53% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-294, CWE-347
- Published
- Modified
- Record from
- the NVD, synced
Affected
- canonical:ubuntu_linux
- openstack:keystone
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-rqw2-hhrf-7936 | PyPI | keystone | >=16.0.0.0rc1 <16.0.0 | 16.0.0 |
| GHSA-rqw2-hhrf-7936 | PyPI | keystone | <15.0.1 | 15.0.1 |
| PYSEC-2020-56 | PyPI | keystone | <15.0.1 | 15.0.1 |