• 公告ID (KylinSec-SA-2023-1304)

摘要:

Git for Windows, the Windows port of Git, ships with an executable called `connect.exe`, which implements a SOCKS5 proxy that can be used to connect e.g. to SSH servers via proxies when certain ports are blocked for outgoing connections. The location of `connect.exe`'s config file is hard-coded as `/etc/connectrc` which will typically be interpreted as `C:\etc\connectrc`. Since `C:\etc` can be created by any authenticated user, this makes `connect.exe` susceptible to malicious files being placed there by other users on the same multi-user machine. The problem has been patched in Git for Windows v2.40.1. As a workaround, create the folder `etc` on all drives where Git commands are run, and remove read/write access from those folders. Alternatively, watch out for malicious `<drive&gt;:\etc\connectrc` files on multi-user machines.

安全等级: Low

公告ID: KylinSec-SA-2023-1304

发布日期: 2023年4月28日

关联CVE: CVE-2023-29011  

  • 详细介绍

1. 漏洞描述

   

Git for Windows, the Windows port of Git, ships with an executable called `connect.exe`, which implements a SOCKS5 proxy that can be used to connect e.g. to SSH servers via proxies when certain ports are blocked for outgoing connections. The location of `connect.exe`'s config file is hard-coded as `/etc/connectrc` which will typically be interpreted as `C:\etc\connectrc`. Since `C:\etc` can be created by any authenticated user, this makes `connect.exe` susceptible to malicious files being placed there by other users on the same multi-user machine. The problem has been patched in Git for Windows v2.40.1. As a workaround, create the folder `etc` on all drives where Git commands are run, and remove read/write access from those folders. Alternatively, watch out for malicious `<drive&gt;:\etc\connectrc` files on multi-user machines.

2. 影响范围

cve名称 产品 组件 是否受影响
CVE-2023-29011 KY3.4-4A git Unaffected
CVE-2023-29011 KY3.4-5A git Unaffected
CVE-2023-29011 KY3.5.1 git Unaffected
CVE-2023-29011 KY3.5.2 git Unaffected

3. 影响组件

    无

4. 修复版本

    无

5. 修复方法

   无

6. 下载链接

    无
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