| Summary | A vulnerability was found in Samba from version (including) 4.9 to versions before 4.9.6 and 4.10.2. During the creation of a new Samba AD DC, files are created in a private subdirectory of the install location. This directory is typically mode 0700, that is owner (root) only access. However in some upgraded installations it will have other permissions, such as 0755, because this was the default before Samba 4.8. Within this directory, files are created with mode 0666, which is world-writable, including a sample krb5.conf, and the list of DNS names and servicePrincipalName values to update. |
|---|---|
| Publication Date | April 10, 2019, 1:29 a.m. |
| Registration Date | Jan. 26, 2021, 11:42 a.m. |
| Last Update | Nov. 21, 2024, 1:42 p.m. |
| CVSS3.1 : MEDIUM | |
| スコア | 6.1 |
|---|---|
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H |
| 攻撃元区分(AV) | ローカル |
| 攻撃条件の複雑さ(AC) | 低 |
| 攻撃に必要な特権レベル(PR) | 低 |
| 利用者の関与(UI) | 不要 |
| 影響の想定範囲(S) | 変更なし |
| 機密性への影響(C) | なし |
| 完全性への影響(I) | 低 |
| 可用性への影響(A) | 高 |
| CVSS2.0 : LOW | |
| Score | 3.6 |
|---|---|
| Vector | AV:L/AC:L/Au:N/C:N/I:P/A:P |
| 攻撃元区分(AV) | ローカル |
| 攻撃条件の複雑さ(AC) | 低 |
| 攻撃前の認証要否(Au) | 不要 |
| 機密性への影響(C) | なし |
| 完全性への影響(I) | 低 |
| 可用性への影響(A) | 低 |
| Get all privileges. | いいえ |
| Get user privileges | いいえ |
| Get other privileges | いいえ |
| User operation required | いいえ |
| Configuration1 | or higher | or less | more than | less than | |
| cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* | 4.10.0 | 4.10.2 | |||
| cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* | 4.9.0 | 4.9.6 | |||
| Configuration2 | or higher | or less | more than | less than | |
| cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* | |||||
| Configuration3 | or higher | or less | more than | less than | |
| cpe:2.3:a:synology:diskstation_manager:5.2:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:synology:diskstation_manager:6.1:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:synology:diskstation_manager:6.2:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:synology:directory_server:-:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:synology:router_manager:1.2:*:*:*:*:*:*:* | |||||
| Configuration4 | or higher | or less | more than | less than | |
| cpe:2.3:o:synology:skynas_firmware:-:*:*:*:*:*:*:* | |||||
| execution environment | |||||
| 1 | cpe:2.3:h:synology:skynas:-:*:*:*:*:*:*:* | ||||
| Configuration5 | or higher | or less | more than | less than | |
| cpe:2.3:o:synology:vs960hd_firmware:*:*:*:*:*:*:*:* | 2.3.6-1720 | ||||
| execution environment | |||||
| 1 | cpe:2.3:h:synology:vs960hd:-:*:*:*:*:*:*:* | ||||
| Title | Samba におけるパーミッションに関する脆弱性 |
|---|---|
| Summary | Samba には、パーミッションに関する脆弱性が存在します。 |
| Possible impacts | 情報を改ざんされる、およびサービス運用妨害 (DoS) 状態にされる可能性があります。 |
| Solution | ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。 |
| Publication Date | April 9, 2019, midnight |
| Registration Date | May 14, 2019, 4:44 p.m. |
| Last Update | May 14, 2019, 4:44 p.m. |
| Samba Project |
| Samba 4.10.2 未満 |
| Samba 4.9 以上 4.9.6 未満 |
| Fedora Project |
| Fedora |
| No | Changed Details | Date of change |
|---|---|---|
| 1 | [2019年05月14日] 掲載 |
May 14, 2019, 4:44 p.m. |