发布时间 :1997-05-09 00:00:00
修订时间 :2016-10-17 22:02:45

[原文]addnetpr in SGI IRIX 6.2 and earlier allows local users to modify arbitrary files and possibly gain root access via a symlink attack on a temporary file.

[CNNVD]IRIX /usr/lib/netaddpr漏洞(CNNVD-199705-011)

        SGI IRIX 6.2及早期版本上的addnetpr存在漏洞。本地用户可以通过临时文件的符号链接修改任意文件并可能访问根目录。

- CVSS (基础分值)

CVSS分值: 7.2 [严重(HIGH)]
机密性影响: COMPLETE [完全的信息泄露导致所有系统文件暴露]
完整性影响: COMPLETE [系统完整性可被完全破坏]
可用性影响: COMPLETE [可能导致系统完全宕机]
攻击复杂度: LOW [漏洞利用没有访问限制 ]
攻击向量: LOCAL [漏洞利用需要具有物理访问权限或本地帐户]
身份认证: NONE [漏洞利用无需身份认证]

- CPE (受影响的平台与产品)

cpe:/o:sgi:irix:6.2SGI IRIX 6.2
cpe:/o:sgi:irix:5.3SGI IRIX 5.3

- 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)  BUGTRAQ  19970509 Re: Irix: misc
(VENDOR_ADVISORY)  XF  irix-addnetpr(1433)

- 漏洞信息

IRIX /usr/lib/netaddpr漏洞
高危 其他
1997-05-09 00:00:00 2005-10-20 00:00:00
        SGI IRIX 6.2及早期版本上的addnetpr存在漏洞。本地用户可以通过临时文件的符号链接修改任意文件并可能访问根目录。

- 公告与补丁

        A quick solution to this problem is to remove the setuid bit from the netaddpr program. This will prevent users from actively trying to exploit this problem. However, some risk still exists, as an attacker could wait until an administrator executes this program, and attempt to exploit the flaw at this time. While the likelihood of sucess is quite small, the risk still exists.
        Patches to this, and other printing related problems, are available from SGI.

- 漏洞信息

IRIX addnetpr Printer Temporary File Symlink Local Privilege Escalation
Local Access Required Race Condition
Loss of Integrity Upgrade
Exploit Public

- 漏洞描述

IRIX contains a flaw that may allow a malicious local user to manipulate arbitrary files on the system. The issue is due to the addnetpr program creating temporary files insecurely. It is possible for a user to use a symlink style attack to corrupt arbitrary files, resulting in a loss of integrity.

- 时间线

1997-05-09 Unknow
1997-05-09 Unknow

- 解决方案

Upgrade to version 6.3 or higher, as it has been reported to fix this vulnerability. Also, Silicon Graphics, Inc. has released a patch to address this issue. Additionally, it is possible to correct the flaw by implementing the following workaround: #/usr/sbin/versions -v remove print

- 相关参考

- 漏洞作者