CVE-2021-38155

OpenStack Keystone 10.x through 16.x before 16.0.2, 17.x before 17.0.1, 18.x before 18.0.1, and 19.x before 19.0.1 allows information disclosure during account locking (related to PCI DSS features). By guessing the name of an account and failing to authenticate multiple times, any unauthenticated actor could both confirm the account exists and obtain that account's corresponding UUID, which might be leveraged for other unrelated attacks. All deployments enabling security_compliance.lockout_failure_attempts are affected.

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://launchpad.net/bugs/1688137	Exploit Issue Tracking Patch Third Party Advisory
https://security.openstack.org/ossa/OSSA-2021-003.html	Patch Vendor Advisory
http://www.openwall.com/lists/oss-security/2021/08/10/5	Mailing List Patch Third Party Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:openstack:keystone::::::::
	cpe:2.3:a:openstack:keystone::::::::
	cpe:2.3:a:openstack:keystone::::::::
	cpe:2.3:a:openstack:keystone::::::::

Information

Published : 2021-08-06 14:15

Updated : 2021-08-18 08:41

NVD link : CVE-2021-38155

Mitre link : CVE-2021-38155

JSON object : View

CWE

CWE-307

Improper Restriction of Excessive Authentication Attempts

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Products Affected

openstack

keystone

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