CVE-2020-12692

medium

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

Advisories
More

https://www.openwall.com/lists/oss-security/2020/05/06/4

https://usn.ubuntu.com/4480-1/

https://bugs.launchpad.net/keystone/+bug/1872737

http://www.openwall.com/lists/oss-security/2020/05/07/1

https://security.openstack.org/ossa/OSSA-2020-003.html

Details

Source: Mitre, NVD

Published: 2020-05-07

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 5.4

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Severity: Medium

CVSS v4

Base Score: 5.3

Vector: 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

Severity: Medium

EPSS

EPSS: 0.00114