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seebugRootSSV:19045
HistoryFeb 02, 2010 - 12:00 a.m.

Samba 'mount.cifs'本地特权提升漏洞

2010-02-0200:00:00
Root
www.seebug.org
18

Bugraq ID: 37992
CVE ID:CVE-2009-3297

mount.cifs是Samba应用程序包含的工具。mount.cifs程序允许用户通过不同的方式传送凭据文件的名称或包含有口令的文件。
mount.cifs存在竞争条件问题,本地攻击者可以利用漏洞提升特权。
建立一个路径不包含符号链接的tmp目录,使用mount.cifs开始加载攻击者所控制的共享,但当密码对话框提示时把它转到到后台,使用符号链接把 temp目录链接到/etc/pam.d,然后再把mount.cifs切换到前台,输入密码,按回车,此时攻击者的共享加载在/etc/pam.d中,导致特权提升。

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