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In Amanda 3.5.1, an information leak vulnerability was found in the calcsize SUID binary. An attacker can abuse this vulnerability to know if a directory exists or not anywhere in the fs. The binary will use `opendir()` as root directly without checking the path, letting the attacker provide an arbitrary path.

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Amanda 路径遍历漏洞

Amanda是University of Maryland at College Park组织的一种自动网络磁盘存档器。允许 IT 管理员设置单个主备份服务器，以通过网络将多个主机备份到磁带驱动器/转换器或磁盘或光学介质。 Amanda 3.5.1版本存在安全漏洞，该漏洞源于在calcsize SUID二进制文件中发现了信息泄漏漏洞。攻击者利用该漏洞知道fs中是否存在目录。

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