CVE-2020-12692 Information

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.

CVSS Vector

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

Reference

http://www.openwall.com/lists/oss-security/2020/05/07/1 https://bugs.launchpad.net/keystone/+bug/1872737 https://security.openstack.org/ossa/OSSA-2020-003.html https://usn.ubuntu.com/4480-1/ https://www.openwall.com/lists/oss-security/2020/05/06/4

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

5.4