CVE Vulnerability

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.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

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

References
Link Resource
https://launchpad.net/bugs/1688137 Exploit Issue Tracking
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
Configurations

Configuration 1

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 09:15

Updated : 2021-08-18 03:41

NVD link : CVE-2021-38155

Mitre link : CVE-2021-38155

Products Affected
No products.
CWE
CWE-307

Improper Restriction of Excessive Authentication Attempts