Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
One-byte buffer overflow in replydirname function in BSD-based ftpd allows remote attackers to gain root privileges.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
BSD ftpd单字节缓冲区溢出漏洞
Vulnerability Description
源自4.x BSD的FTP服务器实现包含一个严重漏洞，可以远程获取root权限。 在replydirname()函数中存在单字节缓冲区溢出，此时会覆盖修改被保存的EBP寄存器，当replydirname()函数返回的时候，主调函数中EBP寄存器值被设置成修改后的值。如果主调函数不受此影响并开始正常返回，由于EBP寄存器值已经是修改后的值，提取用于返回的EIP寄存器值的时候并不是从正常位置提取，如果相关栈区在攻击者控制下，程序流程发生变化，此时可以继续采用传统缓冲区溢出技术进一步获取root权限。 如果系统
CVSS Information
N/A
Vulnerability Type
N/A