发布时间 :1995-03-03 00:00:00
修订时间 :2017-10-09 21:29:04

[原文]SGI Desktop Permissions Tool in IRIX 6.0.1 and earlier allows local users to modify permissions for arbitrary files and gain privileges.

[CNNVD]IRIX SGI桌面许可工具提升特权漏洞(CNNVD-199503-003)

        IRIX 6.0.1及其早期版本中的SGI桌面许可工具存在漏洞。本地用户可以修改任意文件的权限并提升特权。

- CVSS (基础分值)

CVSS分值: 4.6 [中等(MEDIUM)]
机密性影响: PARTIAL [很可能造成信息泄露]
完整性影响: PARTIAL [可能会导致系统文件被修改]
可用性影响: PARTIAL [可能会导致性能下降或中断资源访问]
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:5.2SGI IRIX 5.2
cpe:/o:sgi:irix:6.0SGI IRIX 6.0
cpe:/o:sgi:irix:6.0.1SGI IRIX 6.0.1

- 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
(VENDOR_ADVISORY)  SGI  19950301-01-P373
(UNKNOWN)  XF  sgi-permissions(2113)

- 漏洞信息

IRIX SGI桌面许可工具提升特权漏洞
中危 未知
1995-03-03 00:00:00 2006-02-20 00:00:00
        IRIX 6.0.1及其早期版本中的SGI桌面许可工具存在漏洞。本地用户可以修改任意文件的权限并提升特权。

- 公告与补丁


- 漏洞信息 (20263)

IRIX 5.2/6.0 permissions File Manipulation Vulnerability (EDBID:20263)
irix local
1995-03-02 Verified
0 Larry Glaze
N/A [点击下载]

The IRIX's /usr/lib/desktop/permissions tool is a suid and sgid root applications normally used by users to modify permissions of their files and files they are privileged for. A vulnerability in the permissions tool allows local malicious users to modify the permissions of any file on the system.

This is SGI SCR # 265071.

If you attempt to change the permissions of a file you don't have privileges for the permissions tool will prompt you for the name and password of a privileged user. But the permission changes are made to the target file before the tool prompts you for the password if you double click "Apply". 

Run /usr/lib/desktop/permissions aganist the file which permissions you want to modify. Change the permissions. Click on the 'Apply' button twice before the dialog box appears asking you for a username and password. Click the 'Cancel' button. 		

- 漏洞信息

IRIX Desktop Permissions Tool File Modification Privilege Escalation
Local Access Required Misconfiguration
Loss of Integrity Patch / RCS
Exploit Public Vendor Verified

- 漏洞描述

IRIX contains a flaw that may allow a malicious user to gain access to unauthorized privileges. The issue is triggered when a malicious user can use the /usr/lib/desktop/permissions tool to modify the permissions of any file on the system. This flaw may lead to a loss of integrity.

- 时间线

1995-03-03 Unknow
1995-03-06 Unknow

- 解决方案

Silicon Graphics, Inc. has released a patch to address this vulnerability. It is also possible to correct this vulnerability by implimenting the following workaround: remove the setuid bit and setgid bit from the permissions tool. #chmod u-s /usr/lib/desktop/permissions #chmod g-s /usr/lib/desktop/permissions

- 相关参考

- 漏洞作者