Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
nfsd in the Linux kernel before 2.6.28.9 does not drop the CAP_MKNOD capability before handling a user request in a thread, which allows local users to create device nodes, as demonstrated on a filesystem that has been exported with the root_squash option.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Linux Kernel nfsd CAP_MKNOD绕过安全限制漏洞
Vulnerability Description
Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。NFSv4 implementation是其中的一个分布式文件系统协议。 Linux Kernel的nfsd线程在处理来自非root用户请求时没有丢弃CAP_MKNOD权限,这允许非特权客户端在以root_squash选项导出的文件系统上创建设备节点。 这个漏洞的起因是CAP_MKNOD允许用户在本地主机上执行vfs_mknod(...)函数,该函数会调用nfs模块中向NFS服务器发送请求的通讯函数,而nfsd在扮演为
CVSS Information
N/A
Vulnerability Type
N/A