microsoft git_credential_manager_core 使用不正确的解析名称或索引

CVE编号

CVE-2020-26233

利用情况

暂无

补丁情况

N/A

披露时间

2020-12-09

漏洞描述

Git Credential Manager Core (GCM Core) is a secure Git credential helper built on .NET Core that runs on Windows and macOS. In Git Credential Manager Core before version 2.0.289, when recursively cloning a Git repository on Windows with submodules, Git will first clone the top-level repository and then recursively clone all submodules by starting new Git processes from the top-level working directory. If a malicious git.exe executable is present in the top-level repository then this binary will be started by Git Credential Manager Core when attempting to read configuration, and not git.exe as found on the %PATH%. This only affects GCM Core on Windows, not macOS or Linux-based distributions. GCM Core version 2.0.289 contains the fix for this vulnerability, and is available from the project's GitHub releases page. GCM Core 2.0.289 is also bundled in the latest Git for Windows release; version 2.29.2(3). As a workaround, users should avoid recursively cloning untrusted repositories with the --recurse-submodules option.

解决建议

建议您更新当前系统或软件至最新版，完成漏洞的修复。

参考链接
https://blog.blazeinfosec.com/attack-of-the-clones-2-git-command-client-remot...
https://git-scm.com/docs/git-clone#Documentation/git-clone.txt---recurse-subm...
https://github.com/microsoft/Git-Credential-Manager-Core/commit/61c0388e064ba...
https://github.com/microsoft/Git-Credential-Manager-Core/releases/tag/v2.0.289-beta
https://github.com/microsoft/Git-Credential-Manager-Core/security/advisories/...

受影响软件情况

#	类型	厂商	产品	版本	影响面
1
	运行在以下环境
	应用	microsoft	git_credential_manager_core	*		Up to (excluding) 2.0.289

CVSS3评分 7.3

• 攻击路径 网络
• 攻击复杂度 高
• 权限要求 高
• 影响范围 已更改
• 用户交互 需要
• 可用性 无
• 保密性 高
• 完整性 高

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N CWE-ID 漏洞类型 CWE-706 使用不正确的解析名称或索引