CVE-2020-12689

An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. Any user authenticated within a limited scope (trust/oauth/application credential) can create an EC2 credential with an escalated permission, such as obtaining admin while the user is on a limited viewer role. This potentially allows a malicious user to act as the admin on a project another user has the admin role on, which can effectively grant that user global admin privileges.

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://www.openwall.com/lists/oss-security/2020/05/06/5	Mailing List Third Party Advisory
https://bugs.launchpad.net/keystone/+bug/1872735	Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/05/07/2	Mailing List Third Party Advisory
https://security.openstack.org/ossa/OSSA-2020-004.html	Vendor Advisory
https://lists.apache.org/thread.html/re4ffc55cd2f1b55a26e07c83b3c22c3fe4bae6054d000a57fb48d8c2@%3Ccommits.druid.apache.org%3E	Mailing List Third Party Advisory
https://usn.ubuntu.com/4480-1/	Third Party Advisory

Configurations

Configuration 1 (hide)

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

Configuration 2 (hide)

cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*

Information

Published : 2020-05-06 17:15

Updated : 2023-03-01 08:48

NVD link : CVE-2020-12689

Mitre link : CVE-2020-12689

JSON object : View

CWE

CWE-269

Improper Privilege Management

Products Affected

canonical

ubuntu_linux

openstack

keystone

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8.8 /10