CVE-2020-12692

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.

Category

5.4
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.11%
Vendor Advisory ubuntu.com Vendor Advisory openstack.org
Affected: n/a n/a
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2020-12692?
CVE-2020-12692 has been scored as a medium severity vulnerability.
How to fix CVE-2020-12692?
To fix CVE-2020-12692, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-12692 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-12692 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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