CVE-2020-12690

An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. The list of roles provided for an OAuth1 access token is silently ignored. Thus, when an access token is used to request a keystone token, the keystone token contains every role assignment the creator had for the project. This results in the provided keystone token having more role assignments than the creator intended, possibly giving unintended escalated access.

CVSS v3.0 8.8 HIGH
CVSS v2.0 6.5 MEDIUM

8.8^/10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.5^/10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://bugs.launchpad.net/keystone/+bug/1873290	Patch Third Party Advisory
https://www.openwall.com/lists/oss-security/2020/05/06/6	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/05/07/3	Mailing List Third Party Advisory
https://security.openstack.org/ossa/OSSA-2020-005.html	Vendor Advisory
https://lists.apache.org/thread.html/re4ffc55cd2f1b55a26e07c83b3c22c3fe4bae6054d000a57fb48d8c2@%3Ccommits.druid.apache.org%3E
https://usn.ubuntu.com/4480-1/
https://lists.apache.org/thread.html/re237267da268c690df5e1c6ea6a38a7fc11617725e8049490f58a6fa@%3Ccommits.druid.apache.org%3E

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:openstack:keystone::::::::
	cpe:2.3:a:openstack:keystone:16.0.0:::::::*

Information

Published : 2020-05-06 17:15

Updated : 2021-07-12 22:15

NVD link : CVE-2020-12690

Mitre link : CVE-2020-12690

JSON object : View

CWE

CWE-613

Insufficient Session Expiration

Products Affected

openstack

keystone

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://bugs.launchpad.net/keystone/+bug/1873290", "name": "https://bugs.launchpad.net/keystone/+bug/1873290", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://www.openwall.com/lists/oss-security/2020/05/06/6", "name": "https://www.openwall.com/lists/oss-security/2020/05/06/6", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MISC"}, {"url": "http://www.openwall.com/lists/oss-security/2020/05/07/3", "name": "[oss-security] 20200507 Re: [OSSA-2020-005] Keystone: OAuth1 request token authorize silently ignores roles parameter (CVE PENDING)", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "https://security.openstack.org/ossa/OSSA-2020-005.html", "name": "https://security.openstack.org/ossa/OSSA-2020-005.html", "tags": ["Vendor Advisory"], "refsource": "CONFIRM"}, {"url": "https://lists.apache.org/thread.html/re4ffc55cd2f1b55a26e07c83b3c22c3fe4bae6054d000a57fb48d8c2@%3Ccommits.druid.apache.org%3E", "name": "[druid-commits] 20200520 [GitHub] [druid] ccaominh opened a new pull request #9903: Suppress CVEs for openstack-keystone", "tags": [], "refsource": "MLIST"}, {"url": "https://usn.ubuntu.com/4480-1/", "name": "USN-4480-1", "tags": [], "refsource": "UBUNTU"}, {"url": "https://lists.apache.org/thread.html/re237267da268c690df5e1c6ea6a38a7fc11617725e8049490f58a6fa@%3Ccommits.druid.apache.org%3E", "name": "[druid-commits] 20210712 [druid] branch master updated: Suppress CVE-2021-27568 from json-smart 2.3 dependency (#11438)", "tags": [], "refsource": "MLIST"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. The list of roles provided for an OAuth1 access token is silently ignored. Thus, when an access token is used to request a keystone token, the keystone token contains every role assignment the creator had for the project. This results in the provided keystone token having more role assignments than the creator intended, possibly giving unintended escalated access."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-613"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2020-12690", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 6.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "authentication": "SINGLE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 8.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}}, "publishedDate": "2020-05-07T00:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "15.0.1"}, {"cpe23Uri": "cpe:2.3:a:openstack:keystone:16.0.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2021-07-13T05:15Z"}

8.8 /10