Vulnerability · Published May 6, 2020 · Assigned by mitre
CVE-2020-12692
Medium 5.4
In plain English
A medium-severity security flaw in the keystone package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.4Medium
Exploit odds (30 days)0.7%top 46.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | keystone | 2:17.0.0~rc2-1 | DEBIAN-CVE-2020-12692 |
| Debian:13 | keystone | 2:17.0.0~rc2-1 | DEBIAN-CVE-2020-12692 |
| Debian:14 | keystone | 2:17.0.0~rc2-1 | DEBIAN-CVE-2020-12692 |
| PyPI | keystone | 16.0.0 | GHSA-rqw2-hhrf-7936 |
| PyPI | keystone | 15.0.1 | GHSA-rqw2-hhrf-7936 |
| PyPI | keystone | 15.0.1 | PYSEC-2020-56 |
Affected products (as reported)
References
- https://security.openstack.org/ossa/OSSA-2020-003.html x_refsource_CONFIRM
- https://bugs.launchpad.net/keystone/+bug/1872737 x_refsource_MISC
- https://www.openwall.com/lists/oss-security/2020/05/06/4 x_refsource_MISC
- [oss-security] 20200507 Re: [OSSA-2020-003] Keystone: Keystone does not check signature TTL of the EC2 credential auth method (CVE PENDING) mailing-list, x_refsource_MLIST
- USN-4480-1 vendor-advisory, x_refsource_UBUNTU