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CVE-2021-4034 PoC — polkit 缓冲区错误漏洞

Source
https://github.com/Silencecyber/cve-2021-4034
Associated Vulnerability
Title:polkit 缓冲区错误漏洞 (CVE-2021-4034)
Description:polkit是一个在类 Unix操作系统中控制系统范围权限的组件。通过定义和审核权限规则，实现不同优先级进程间的通讯。 polkit 的 pkexec application存在缓冲区错误漏洞，攻击者可利用该漏洞通过精心设计环境变量诱导pkexec执行任意代码。成功执行攻击后，如果目标计算机上没有权限的用户拥有管理权限，攻击可能会导致本地权限升级。
File Snapshot

 [4.0K]  /data/pocs/9bb4933cd2739636bf86f88a76f23dacfdea65f9
└── [4.0K]  exploit
    ├── [4.0K]  evildir
    │   ├── [ 15K]  evil.so
    │   └── [  40]  gconv-modules
    ├── [ 15K]  evil.so
    ├── [ 185]  evil-so.c
    ├── [ 16K]  exploit
    ├── [ 616]  exploit.c
    └── [4.0K]  GCONV_PATH=.
        └── [   0]  evildir

3 directories, 7 files
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