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CVE-2022-2447

A flaw was found in OpenStack. The application credential tokens can be used even after they have...

6.6 MediumFix available

A flaw was found in Keystone. There is a time lag (up to one hour in a default configuration) between when security policy says a token should be revoked from when it is actually revoked. This could allow a remote administrator to secretly maintain access for longer than expected.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
High
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.72%Down 0.3 points since Sep 2, 2022
90%50%10%1%

What each source reports

NVD Score used 6.6

A flaw was found in Keystone. There is a time lag (up to one hour in a default configuration) between when security policy says a token should be revoked from when it is actually revoked. This could allow a remote administrator to secretly maintain access for longer than expected.

Record
CVE-2022-2447
CVSS 3.1
6.6 MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-324, CWE-672
Updated
2026-11-02
CVE List No score

A flaw was found in Keystone. There is a time lag (up to one hour in a default configuration) between when security policy says a token should be revoked from when it is actually revoked. This could allow a remote administrator to secretly maintain access for longer than expected.

Record
CVE-2022-2447
Weakness
CWE-324
Updated
2026-11-02
EUVDEUVD-2022-34708 No score

A flaw was found in Keystone. There is a time lag (up to one hour in a default configuration) between when security policy says a token should be revoked from when it is actually revoked. This could allow a remote administrator to secretly maintain access for longer than expected.

Record
EUVD-2022-34708
Updated
2026-11-03
GitHub AdvisoriesGHSA-r88f-774m-5rj4 8.8

A flaw was found in OpenStack. The application credential tokens can be used even after they have...

A flaw was found in OpenStack. The application credential tokens can be used even after they have expired. This flaw allows an authenticated remote attacker to obtain access despite the defender's efforts to remove access.

Record
GHSA-r88f-774m-5rj4
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-672
Updated
2026-11-02
OSV 6.6

A flaw was found in Keystone. There is a time lag (up to one hour in a default configuration) between when security policy says a token should be revoked from when it is actually revoked. This could allow a remote administrator to secretly maintain access for longer than expected.

Record
CVE-2022-2447
CVSS 3.1
6.6 MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2022-2447 6.6

A flaw was found in Keystone. There is a time lag (up to one hour in a default configuration) between when security policy says a token should be revoked from when it is actually revoked. This could allow a remote administrator to secretly maintain access for longer than expected.

Record
DEBIAN-CVE-2022-2447
CVSS 3.1
6.6 MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-03
OSVUBUNTU-CVE-2022-2447 6.6

A flaw was found in Keystone. There is a time lag (up to one hour in a default configuration) between when security policy says a token should be revoked from when it is actually revoked. This could allow a remote administrator to secretly maintain access for longer than expected.

Record
UBUNTU-CVE-2022-2447
CVSS 3.1
6.6 MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUSN-7926-1 No score

keystone vulnerabilities

Kay discovered that OpenStack Keystone incorrectly handled the ec2tokens and s3tokens APIs. A remote attacker could possibly use this issue to obtain unauthorized access and escalate privileges. (CVE-2025-65073)

It was discovered that OpenStack Keystone only validated the first 72 bytes of an application secret. An attacker could possibly use this issue to bypass password complexity. (CVE-2021-3563)

It was discovered that OpenStack Keystone had a time lag before a token should be revoked by the security policy. A remote administrator could use this issue to maintain access for longer than expected. (CVE-2022-2447)

Record
USN-7926-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
python-keystonemiddleware
Debian:12
before 10.1.0-4
10.1.0-4
python-keystonemiddleware
Debian:13
before 10.1.0-4
10.1.0-4
python-keystonemiddleware
Debian:14
before 10.1.0-4
10.1.0-4
keystone
Ubuntu:Pro:16.04:LTS
All versions, plus listed versions
2:8.0.0-0ubuntu12:9.0.0~b1-0ubuntu12:9.0.0~b2-0ubuntu12:9.0.0~b3-0ubuntu12:9.0.0~rc1-0ubuntu1
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2:9.0.0-0ubuntu12:9.0.2-0ubuntu12:9.0.2-0ubuntu22:9.1.0-0ubuntu12:9.2.0-0ubuntu12:9.3.0-0ubuntu12:9.3.0-0ubuntu22:9.3.0-0ubuntu32:9.3.0-0ubuntu3.12:9.3.0-0ubuntu3.22:9.3.0-0ubuntu3.2+esm2
None known
keystone
Ubuntu:Pro:18.04:LTS
All versions, plus listed versions
2:12.0.0-0ubuntu12:13.0.0~b1-0ubuntu12:13.0.0~b2-0ubuntu12:13.0.0~b3-0ubuntu12:13.0.0~rc1-0ubuntu1
Show 7 moreShow less
2:13.0.0~rc2-0ubuntu12:13.0.0-0ubuntu12:13.0.1-0ubuntu12:13.0.2-0ubuntu12:13.0.2-0ubuntu32:13.0.4-0ubuntu12:13.0.4-0ubuntu1+esm1
None known
keystone
Ubuntu:Pro:20.04:LTS
All versions, plus listed versions
2:16.0.0-0ubuntu12:17.0.0~b1~git2019121613.db81fee63-0ubuntu12:17.0.0~b2~git2020020513.99733f172-0ubuntu12:17.0.0~b3~git2020032415.9f9040257-0ubuntu12:17.0.0~b3~git2020032415.9f9040257-0ubuntu2
Show 6 moreShow less
2:17.0.0~b3~git2020041013.7bb6314e4-0ubuntu12:17.0.0-0ubuntu0.20.04.12:17.0.1-0ubuntu12:17.0.1-0ubuntu22:17.0.1-0ubuntu2+esm12:17.0.1-0ubuntu2+esm2
None known
keystone
Ubuntu:22.04:LTS
before 2:21.0.1-0ubuntu2.1, plus listed versions
2:20.0.0-0ubuntu12:20.0.0+git2021120815.2ddf8f321-0ubuntu12:20.0.0+git2022011217.771c943ad-0ubuntu12:20.0.0+git2022030313.a3fc9e7c3-0ubuntu12:21.0.0-0ubuntu12:21.0.1-0ubuntu12:21.0.1-0ubuntu2
2:21.0.1-0ubuntu2.1
keystone
Ubuntu:22.04:LTS
From an advisory covering 3 CVEs
before 2:21.0.1-0ubuntu2.1, plus listed versions
2:20.0.0-0ubuntu12:20.0.0+git2021120815.2ddf8f321-0ubuntu12:20.0.0+git2022011217.771c943ad-0ubuntu12:20.0.0+git2022030313.a3fc9e7c3-0ubuntu12:21.0.0-0ubuntu12:21.0.1-0ubuntu12:21.0.1-0ubuntu2
2:21.0.1-0ubuntu2.1

History

History
RecordedChangedSources
affected, factsOSV
aliases, productsEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2022-2447 is a medium vulnerability (CVSS 6.6) in Openstack Keystone, published September 1, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.72%, the 54th percentile. Fixed in python-keystonemiddleware 10.1.0-4.

References

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