CVE-2016-4911

The Fernet Token Provider in OpenStack Identity (Keystone) 9.0.x before 9.0.1 (mitaka) allows remote authenticated users to prevent revocation of a chain of tokens and bypass intended access restrictions by rescoping a token.

CVSS v3 4.3 MEDIUM
CVSS v2.0 4.0 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

4.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
http://www.openwall.com/lists/oss-security/2016/05/17/10	Mailing List
http://www.openwall.com/lists/oss-security/2016/05/17/11	Mailing List
http://www.securityfocus.com/bid/90728	Third Party Advisory VDB Entry
https://bugs.launchpad.net/keystone/+bug/1577558	Vendor Advisory
https://review.openstack.org/#/c/311886/	Vendor Advisory
https://security.openstack.org/ossa/OSSA-2016-008.html	Patch Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/05/17/10	Mailing List
http://www.openwall.com/lists/oss-security/2016/05/17/11	Mailing List
http://www.securityfocus.com/bid/90728	Third Party Advisory VDB Entry
https://bugs.launchpad.net/keystone/+bug/1577558	Vendor Advisory
https://review.openstack.org/#/c/311886/	Vendor Advisory
https://security.openstack.org/ossa/OSSA-2016-008.html	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:keystone:openstack_identity:9.0.0.0:rc1::::::
	cpe:2.3:a:keystone:openstack_identity:9.0.0.0:rc2::::::
	cpe:2.3:a:keystone:openstack_identity:9.0.0.0:rc3::::::

History

No history.

Information

Published : 2016-06-13 14:59

Updated : 2025-04-12 10:46

NVD link : CVE-2016-4911

Mitre link : CVE-2016-4911

CVE.ORG link : CVE-2016-4911

JSON object : View

Products Affected

keystone

openstack_identity

CWE

CWE-284

Improper Access Control

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