CVE-2023-25815— Git for Windows 格式化字符串错误漏洞

Git looks for localized messages in the wrong place

In Git for Windows, the Windows port of Git, no localized messages are shipped with the installer. As a consequence, Git is expected not to localize messages at all, and skips the gettext initialization. However, due to a change in MINGW-packages, the `gettext()` function's implicit initialization no longer uses the runtime prefix but uses the hard-coded path `C:\mingw64\share\locale` to look for localized messages. And since any authenticated user has the permission to create folders in `C:\` (and since `C:\mingw64` does not typically exist), it is possible for low-privilege users to place fake messages in that location where `git.exe` will pick them up in version 2.40.1. This vulnerability is relatively hard to exploit and requires social engineering. For example, a legitimate message at the end of a clone could be maliciously modified to ask the user to direct their web browser to a malicious website, and the user might think that the message comes from Git and is legitimate. It does require local write access by the attacker, though, which makes this attack vector less likely. Version 2.40.1 contains a patch for this issue. Some workarounds are available. Do not work on a Windows machine with shared accounts, or alternatively create a `C:\mingw64` folder and leave it empty. Users who have administrative rights may remove the permission to create folders in `C:\`.

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:L

对路径名的限制不恰当(路径遍历)

Git for Windows 格式化字符串错误漏洞

Git for Windows是Git的用于 Windows 的 Git。 Git for Windows 2.40.0版本及之前版本存在格式化字符串错误漏洞，该漏洞源于使用硬编码路径来查找本地化消息。

N/A

N/A