CVE & CISA-KEV Catalog

CVE-2020-12692

MEDIUM
5.4
CVSS v3
NVD

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.

CWE-294CWE-347

How to fix

Remediation Available
keystoneDebian
Fixed in:2:17.0.0~rc2-1CVE-2020-12692
Fixed in:2:17.0.0~rc2-1CVE-2020-12692
Fixed in:2:17.0.0~rc2-1CVE-2020-12692
Fixed in:2:17.0.0~rc2-1CVE-2020-12692
keystoneUbuntu
Fixed in:2:13.0.4-0ubuntu1USN-4480-1
python-keystoneUbuntu
Fixed in:2:13.0.4-0ubuntu1USN-4480-1

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityLow
IntegrityLow
AvailabilityNone

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

Exploit Intelligence

0.70%probability of exploitation in 30 days
50thpercentile

Moderate risk: more likely to be exploited than 50% of all known CVEs.

References

Vendor Advisory1

Related Vulnerabilities

Other CWE-294 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-23397Critical9.897%KEVFix
CVE-2017-3191Critical9.863%--
CVE-2023-49231Critical9.843%--
CVE-2002-0054High7.522%--
CVE-2022-29593Medium5.913%--
CVE-2022-22806Critical9.812%--

Common questions

How do I fix CVE-2020-12692?

Published advisories record a fix for 3 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2020-12692 being actively exploited?

Not that we know of. CVE-2020-12692 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.70% is the estimated probability that it will be exploited in the next 30 days. That is higher than 50% of all scored CVEs.

How severe is CVE-2020-12692?

CVE-2020-12692 has a CVSS v3 base score of 5.4, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2020-12692 affect?

Published advisories record a fix for keystone (Debian), keystone (Ubuntu), python-keystone (Ubuntu). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.