HIGH
OpenStack: Keystone extension of token validity through token chaining
Published Dec 18, 2012
8.2
HIGHCVSS 4.0
EPSS 2.86%
Description
OpenStack Keystone, as used in OpenStack Folsom 2012.2, does not properly implement token expiration, which allows remote authenticated users to bypass intended authorization restrictions by creating new tokens through token chaining. NOTE: this issue exists because of a CVE-2012-3426 regression.
Affected products
Remediation
No remediation recorded yet.
Metrics
8.2 HIGH GHSA
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Attack Vector Network
Attack Complexity Low
Attack Requirements Present
Privileges Required None
User Interaction None
Vulnerable System Confidentiality None
Vulnerable System Integrity High
Vulnerable System Availability None
Subsequent System Confidentiality None
Subsequent System Integrity None
Subsequent System Availability None
5.9 HIGH GHSA
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact High
Availability Impact None
No CVSS v3.0 score for this CVE.
4.0 MEDIUM NVD
AV:N/AC:L/Au:S/C:N/I:P/A:N
Access Vector Network
Access Complexity Low
Authentication Single
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.86% 0.02864
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02864
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.86% (0.02864) | 86.28th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.84% (0.02840) | 84.78th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.14% (0.00145) | 32.27th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.20% (0.00201) | 59.00th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.20% (0.00201) | 57.84th | v3 (v2023.03.01) |
| Nov 7, 2023 | 0.26% (0.00263) | 63.84th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.27% (0.00270) | 62.67th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.81% (0.01815) | 77.08th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.81% (0.01815) | 76.57th | v2 (v2022.01.01) |
| Feb 3, 2023 | 2.19% (0.02186) | 80.39th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.81% (0.01815) | 75.00th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.81% (0.01815) | 54.30th | v2 (v2022.01.01) |
Weaknesses (3)
References (20)
- http://rhn.redhat.com/errata/RHSA-2012-1557.html vendor-advisoryx_refsource_REDHAT
- http://secunia.com/advisories/51423 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/51436 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.openwall.com/lists/oss-security/2012/11/28/5 mailing-listx_refsource_MLISTPatch
- http://www.openwall.com/lists/oss-security/2012/11/28/6 mailing-listx_refsource_MLISTPatch
- http://www.securityfocus.com/bid/56727 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-1641-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2012-5563 Vendor Advisory
- https://bugs.launchpad.net/keystone/+bug/1079216 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=879402 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/80370 vdb-entryx_refsource_XF
- https://github.com/advisories/GHSA-w66p-78g4-mr7g Advisory
- https://github.com/openstack/keystone/commit/38c7e46a640a94da4da89a39a5a1ea9c081f1eb5 x_refsource_CONFIRM
- https://github.com/openstack/keystone/commit/f9d4766249a72d8f88d75dcf1575b28dd3496681 x_refsource_CONFIRM
- https://github.com/pypa/advisory-database/tree/main/vulns/keystone/PYSEC-2012-20.yaml
- https://nvd.nist.gov/vuln/detail/CVE-2012-5563
- https://web.archive.org/web/20121201003009/http://secunia.com/advisories/51423
- https://web.archive.org/web/20140802122732/http://secunia.com/advisories/51436
- https://web.archive.org/web/20200228144943/http://www.securityfocus.com/bid/56727
- https://www.cve.org/CVERecord?id=CVE-2012-5563
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Dec 18, 2012
Updated Aug 6, 2024
Reserved Oct 24, 2012
Link CVE-2012-5563
CISA Vulnrichment
GHSA-W66P-78G4-MR7G Updated n/a