Exim SMTP Challenge Stack-based Buffer Overflow Remote Code Execution Vulnerability

Exim SMTP Challenge Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Exim. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of NTLM challenge requests. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the service account. . Was ZDI-CAN-17515.

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栈缓冲区溢出

Exim 安全漏洞

Exim是一个运行于Unix系统中的开源消息传送代理（MTA），它主要负责邮件的路由、转发和投递。 Exim存在安全漏洞，该漏洞源于在将用户提供的数据复制到基于堆栈的固定长度缓冲区之前缺乏对用户提供的数据的长度进行正确验证。

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