Local Privilege Escalation via Arbitrary File Operation in Bitdefender Total Security

A local privilege escalation vulnerability in Bitdefender Total Security versions prior to 27.0.47.241 allows low-privileged attackers to elevate privileges. The issue arises from bdservicehost.exe deleting files from a user-writable directory (C:\ProgramData\Atc\Feedback) without proper symbolic link validation, enabling arbitrary file deletion. This issue is chained with a file copy operation during network events and a filter driver bypass via DLL injection to achieve arbitrary file copy and code execution as elevated user.

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在文件访问前对链接解析不恰当(链接跟随)

Bitdefender Total Security 后置链接漏洞

Bitdefender Total Security是罗马尼亚比特梵德（Bitdefender）公司的一款应用于PC端的主动威胁防护软件。该软件具有防病毒，防火墙，反间谍软件，隐私控制，家长控制功能。还包括System TuneUp等功能。 Bitdefender Total Security 27.0.46.231版本存在后置链接漏洞，该漏洞源于符号链接验证不足，可能导致任意文件删除和权限提升。

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