Executive Summary
| Informations | |||
|---|---|---|---|
| Name | CVE-2023-4091 | First vendor Publication | 2023-11-03 |
| Vendor | Cve | Last vendor Modification | 2024-11-21 |
Security-Database Scoring CVSS v3
| Cvss vector : CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N | |||
|---|---|---|---|
| Overall CVSS Score | 6.5 | ||
| Base Score | 6.5 | Environmental Score | 6.5 |
| impact SubScore | 3.6 | Temporal Score | 6.5 |
| Exploitabality Sub Score | 2.8 | ||
| Attack Vector | Network | Attack Complexity | Low |
| Privileges Required | Low | User Interaction | None |
| Scope | Unchanged | Confidentiality Impact | None |
| Integrity Impact | High | Availability Impact | None |
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : | |||
|---|---|---|---|
| Cvss Base Score | N/A | Attack Range | N/A |
| Cvss Impact Score | N/A | Attack Complexity | N/A |
| Cvss Expoit Score | N/A | Authentication | N/A |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| A vulnerability was discovered in Samba, where the flaw allows SMB clients to truncate files, even with read-only permissions when the Samba VFS module "acl_xattr" is configured with "acl_xattr:ignore system acls = yes". The SMB protocol allows opening files when the client requests read-only access but then implicitly truncates the opened file to 0 bytes if the client specifies a separate OVERWRITE create disposition request. The issue arises in configurations that bypass kernel file system permissions checks, relying solely on Samba's permissions. |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-4091 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-276 | Incorrect Default Permissions |
CPE : Common Platform Enumeration
Sources (Detail)
Alert History
| Date | Informations |
|---|---|
| 2024-11-28 14:28:44 |
|
| 2024-09-16 21:27:54 |
|
| 2024-08-02 13:51:03 |
|
| 2024-08-02 01:33:50 |
|
| 2024-04-22 21:27:29 |
|
| 2024-02-02 02:48:06 |
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| 2024-02-01 12:30:55 |
|
| 2023-11-24 13:27:44 |
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| 2023-11-23 05:27:50 |
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| 2023-11-21 21:27:44 |
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| 2023-11-13 21:27:34 |
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| 2023-11-08 02:51:56 |
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| 2023-11-08 02:50:44 |
|
| 2023-11-07 21:27:13 |
|
| 2023-11-04 05:27:21 |
|
| 2023-11-03 17:27:26 |
|
| 2023-11-03 13:27:22 |
|
