发布时间 :2005-09-21 16:03:00
修订时间 :2016-05-09 12:49:42

[原文]Unknown vulnerability in rpc.mountd in SGI IRIX 6.5.25, 6.5.26, and 6.5.27 does not sufficiently restrict access rights for read-mostly exports, which allows attackers to conduct unauthorized activities.

[CNNVD]SGI IRIX rpc.mountd加载未明文件访问漏洞(CNNVD-200509-184)

        SGI IRIX中存在未明的文件访问漏洞,远程攻击者可能利用此漏洞非授权限访问文件。起因是NFS服务器无法正确地强制客户端机器上的权限。这个漏洞允许客户端机器获取管理员允许范围以外的访问。在某些环境下,NFS客户端还可以获取对主读(read-mostly)网络共享中文件不恰当的读写访问。

- CVSS (基础分值)

CVSS分值: 7.5 [严重(HIGH)]
机密性影响: [--]
完整性影响: [--]
可用性影响: [--]
攻击复杂度: [--]
攻击向量: [--]
身份认证: [--]

- CWE (弱点类目)

CWE-264 [权限、特权与访问控制]

- CPE (受影响的平台与产品)

cpe:/o:sgi:irix:6.5.25SGI IRIX 6.5.25
cpe:/o:sgi:irix:6.5.27SGI IRIX 6.5.27
cpe:/o:sgi:irix:6.5.26SGI IRIX 6.5.26

- OVAL (用于检测的技术细节)


- 官方数据库链接
(官方数据源) MITRE
(官方数据源) NVD
(官方数据源) CNNVD

- 其它链接及资源
(UNKNOWN)  VUPEN  ADV-2005-0702

- 漏洞信息

SGI IRIX rpc.mountd加载未明文件访问漏洞
高危 访问验证错误
2005-09-21 00:00:00 2005-10-20 00:00:00
        SGI IRIX中存在未明的文件访问漏洞,远程攻击者可能利用此漏洞非授权限访问文件。起因是NFS服务器无法正确地强制客户端机器上的权限。这个漏洞允许客户端机器获取管理员允许范围以外的访问。在某些环境下,NFS客户端还可以获取对主读(read-mostly)网络共享中文件不恰当的读写访问。

- 公告与补丁


- 漏洞信息

IRIX rpc.mountd read-mostly Export Access Rights Issue
Remote / Network Access Attack Type Unknown
Loss of Integrity

- 漏洞描述

IRIX contains a flaw that may allow a malicious user to gain excessive access rights for read-mostly exports. It is possible that the flaw may allow unauthorized reading and writing, resulting in a loss of integrity. No further details are available.

- 时间线

2005-06-01 Unknow
Unknow Unknow

- 解决方案

Currently, there are no known workarounds or upgrades to correct this issue. However, IRIX has released a patch to address this vulnerability.

- 相关参考

- 漏洞作者

Unknown or Incomplete

- 漏洞信息

SGI IRIX RPC.MountD Read-Mostly Mount Unspecified File Access Vulnerability
Access Validation Error 13889
Yes No
2005-06-08 12:00:00 2009-07-12 02:56:00
The vendor disclosed this vulnerability.

- 受影响的程序版本

SGI IRIX 6.5.27
SGI IRIX 6.5.26
SGI IRIX 6.5.25

- 漏洞讨论

SGI IRIX is susceptible to an unspecified file access vulnerability. This issue is due to a failure of the NFS server to properly enforce privileges on client computers.

This issue allows client computers to gain access beyond that which the administrator has allowed. In certain unspecified circumstances, NFS clients may gain inappropriate read-write access to files contained in read-mostly network shares.

SGI IRIX versions 6.5.25 through 6.5.27 are vulnerable. Previous versions may also be affected.

- 漏洞利用

An exploit is not required.

- 解决方案

The vendor has released security advisory 20050601-01-P, along with fixes to address this issue. Please see the referenced advisory for further information.

SGI IRIX 6.5.25

SGI IRIX 6.5.26

SGI IRIX 6.5.27

- 相关参考