CVE-2021-38155
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
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.
Overview
- CVE ID
- CVE-2021-38155
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-08-06T21:15:06
- Last Modified Date
- 2021-08-18T15:41:49
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:* | 1 | OR | 10.0.0 | 16.0.2 |
| cpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:* | 1 | OR | 17.0.0 | 17.0.1 |
| cpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:* | 1 | OR | 18.0.0 | 18.0.1 |
| cpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:* | 1 | OR | 19.0.0 | 19.0.1 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:N/A:N
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| 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 |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-38155 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38155 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:56:47 | Added to TrackCVE | |||
| 2022-12-05 07:36:11 | 2021-08-06T21:15Z | 2021-08-06T21:15:06 | CVE Published Date | updated |
| 2022-12-05 07:36:11 | 2021-08-18T15:41:49 | CVE Modified Date | updated | |
| 2022-12-05 07:36:11 | Analyzed | Vulnerability Status | updated |