发布时间: 2022年4月29日
修改时间: 2022年4月29日
Git for Windows is a fork of Git containing Windows-specific patches. Since part of Git for Windows uninstaller is copied into the current user s temporary directory and run in that place, it is important to ensure that there are no malicious `.dll` file in that directory that might be loaded as part of loading the executable. However, the default system settings for `TMP` and `TEMP` are to point to `C: Windows Temp`, a folder that is world-writable (for historical reasons), and the SYSTEM user account inherits those settings. This means that any authenticated user can place malicious `.dll` files that are loaded when Git for Windows uninstaller is run via the SYSTEM account. Fixes are available in Git for Windows v2.35.2 or newer. Users unable to upgrade may override SYSTEM s `TMP` environment variable to point to a directory exclusively under SYSTEM s control before running the uninstaller, clear `C: Windows Temp` of all `.dll` files before running the uninstaller, or run the uninstaller under an admin account rather than SYSTEM as a workaround.
| NVD | openEuler | |
|---|---|---|
| Confidentiality | High | |
| Attack Vector | Local | |
| CVSS评分 | 7.8 | 0.0 |
| Attack Complexity | Low | |
| Privileges Required | None | |
| Scope | Unchanged | |
| Integrity | High | |
| User Interaction | Required | |
| Availability | High |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2022-1387 | Git for Windows is a fork of Git containing Windows-specific patches. Since part of Git for Windows uninstaller is copied into the current user s temporary directory and run in that place, it is important to ensure that there are no malicious `.dll` file in that directory that might be loaded as part of loading the executable. However, the default system settings for `TMP` and `TEMP` are to point to `C: Windows Temp`, a folder that is world-writable (for historical reasons), and the SYSTEM user account inherits those settings. This means that any authenticated user can place malicious `.dll` files that are loaded when Git for Windows uninstaller is run via the SYSTEM account. Fixes are available in Git for Windows v2.35.2 or newer. Users unable to upgrade may override SYSTEM s `TMP` environment variable to point to a directory exclusively under SYSTEM s control before running the uninstaller, clear `C: Windows Temp` of all `.dll` files before running the uninstaller, or run the uninstaller under an admin account rather than SYSTEM as a workaround. | 2022年4月29日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.4-4A | git | Unaffected |
| KY3.4-5 | git | Unaffected |
| KY3.5.1 | git | Unaffected |
