CVE-2021-43566
CVSS V2 Low 1.2
CVSS V3 Low 2.5
Description
All versions of Samba prior to 4.13.16 are vulnerable to a malicious client using an SMB1 or NFS race to allow a directory to be created in an area of the server file system not exported under the share definition. Note that SMB1 has to be enabled, or the share also available via NFS in order for this attack to succeed.
Overview
- CVE ID
- CVE-2021-43566
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2022-01-11T16:15:07
- Last Modified Date
- 2022-10-14T11:42:07
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* | 1 | OR | 4.13.16 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:H/Au:N/C:N/I:P/A:N
- Access Vector
- LOCAL
- Access Compatibility
- HIGH
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- PARTIAL
- Availability Impact
- NONE
- Base Score
- 1.2
- Severity
- LOW
- Exploitability Score
- 1.9
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
- Attack Vector
- LOCAL
- Attack Compatibility
- HIGH
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 2.5
- Base Severity
- LOW
- Exploitability Score
- 1
- Impact Score
- 1.4
References
| Reference URL | Reference Tags |
|---|---|
| https://www.samba.org/samba/history/ | Release Notes Vendor Advisory |
| https://bugzilla.samba.org/show_bug.cgi?id=13979 | Exploit Issue Tracking Vendor Advisory |
| https://www.samba.org/samba/security/CVE-2021-43566.html | Patch Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-43566 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43566 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:36:55 | Added to TrackCVE | |||
| 2022-12-06 06:05:21 | 2022-01-11T16:15Z | 2022-01-11T16:15:07 | CVE Published Date | updated |
| 2022-12-06 06:05:21 | 2022-10-14T11:42:07 | CVE Modified Date | updated | |
| 2022-12-06 06:05:21 | Analyzed | Vulnerability Status | updated |