openstack/keystone · Security
OpenStack Keystone does not check signature TTL of the EC2 credential auth method
- GHSA ID
- GHSA-rqw2-hhrf-7936
- CVE ID
- CVE-2020-12692
- Severity
- medium
- Published
- Updated
- CVSS
- 5.4 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- CVSS v3
- 5.4 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- CVSS v4
- 5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
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.
CWEs
- CWE-311 · Missing Encryption of Sensitive Data
- CWE-347 · Improper Verification of Cryptographic Signature
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-12692 ↗
- https://bugs.launchpad.net/keystone/+bug/1872737 ↗
- https://security.openstack.org/ossa/OSSA-2020-003.html ↗
- https://www.openwall.com/lists/oss-security/2020/05/06/4 ↗
- http://www.openwall.com/lists/oss-security/2020/05/07/1 ↗
- https://opendev.org/openstack/keystone/commit/ab89ea749013e7f2c46260f68504f5687763e019 ↗
- https://github.com/pypa/advisory-database/tree/main/vulns/keystone/PYSEC-2020-56.yaml ↗
- https://usn.ubuntu.com/4480-1 ↗
- https://github.com/advisories/GHSA-rqw2-hhrf-7936 ↗