CVE-2005-0464
CVSS2.1
发布时间 :2005-05-02 00:00:00
修订时间 :2008-09-05 16:46:22
NMCOPS    

[原文]gr_osview in SGI IRIX 6.5.22, and possibly other 6.5 versions, does not drop privileges when opening description files while in debug mode, which allows local users to read a line from arbitrary files via the -d and -D options, which prints the line as a formatting error.


[CNNVD]SGI IRIX gr_osview本地信息泄露漏洞(CNNVD-200505-459)

        IRIX是一款由SGI公司开发和维护的商业性质UNIX操作系统。
        攻击者可以本地利用IRIX操作系统中捆绑的gr_osview命令中存在的信息泄漏漏洞获取敏感信息。

- CVSS (基础分值)

CVSS分值: 2.1 [轻微(LOW)]
机密性影响: PARTIAL [很可能造成信息泄露]
完整性影响: NONE [不会对系统完整性产生影响]
可用性影响: NONE [对系统可用性无影响]
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)

产品及版本信息(CPE)暂不可用

- OVAL (用于检测的技术细节)

未找到相关OVAL定义

- 官方数据库链接

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0464
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2005-0464
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200505-459
(官方数据源) CNNVD

- 其它链接及资源

http://www.idefense.com/application/poi/display?id=226&type=vulnerabilities
(VENDOR_ADVISORY)  IDEFENSE  20050407 SGI IRIX gr_osview Information Disclosure Vulnerability
ftp://patches.sgi.com/support/free/security/advisories/20050402-01-P
(PATCH)  SGI  20050402-01-P
http://www.osvdb.org/15351
(UNKNOWN)  OSVDB  15351
http://securitytracker.com/id?1013662
(UNKNOWN)  SECTRACK  1013662
http://secunia.com/advisories/14875
(UNKNOWN)  SECUNIA  14875

- 漏洞信息

SGI IRIX gr_osview本地信息泄露漏洞
低危 设计错误
2005-05-02 00:00:00 2005-10-20 00:00:00
本地  
        IRIX是一款由SGI公司开发和维护的商业性质UNIX操作系统。
        攻击者可以本地利用IRIX操作系统中捆绑的gr_osview命令中存在的信息泄漏漏洞获取敏感信息。

- 公告与补丁

        目前厂商已经发布了升级补丁以修复这个安全问题,补丁下载链接:
        ftp://patches.sgi.com/support/free/security/advisories/20050402-01-P.asc

- 漏洞信息 (F37072)

iDEFENSE Security Advisory 2005-04-07.1 (PacketStormID:F37072)
2005-04-17 00:00:00
iDefense Labs  idefense.com
advisory,arbitrary,local,root,info disclosure
irix
CVE-2005-0464
[点击下载]

iDEFENSE Security Advisory 04.07.05 - Local exploitation of an information disclosure vulnerability in the gr_osview command included in multiple versions of Silicon Graphics Inc.'s IRIX Operating System could allow for the disclosure of sensitive information such as the root user's password hash. The vulnerability specifically exists in the way that gr_osview opens user-specified description files without dropping privileges. When this is combined with the debug option, it is possible to dump a line from an arbitrary file, regardless of its protection.

SGI IRIX gr_osview Information Disclosure Vulnerability

iDEFENSE Security Advisory 04.07.05
http://www.idefense.com/application/poi/display?type=vulnerabilities
April 7, 2005

I. BACKGROUND

The gr_osview application is a setuid root application that provides a 
graphical display of usage of certain types of operating system 
resources. It is installed by default under multiple versions of IRIX 6.


II. DESCRIPTION

Local exploitation of an information disclosure vulnerability in the 
gr_osview command included in multiple versions of Silicon Graphics 
Inc.'s IRIX Operating System could allow for the disclosure of sensitive

information such as the root user's password hash. 

The vulnerability specifically exists in the way that gr_osview opens 
user-specified description files without dropping privileges. When this 
is combined with the debug option, it is possible to dump a line from an

arbitrary file, regardless of its protection. An example is as follows: 

user@irix$ gr_osview -d -D /etc/shadow
sgets: waiting for string
*SR> read <root:PASSWDHASHHERE:2051::::::>
gr_osview: description file format error on line 1   

To elevate privileges, the attacker would then have to crack the root 
password using the acquired hash.

III. ANALYSIS

All that is required to exploit this vulnerability is a local account 
and an open X display, which could be the attacker's home machine or 
another compromised computer. Exploitation does not require any 
knowledge of application internals, making exploitation trivial, even 
for unskilled attackers. The most effective exploitation method would be

reading the first line of the operating system shadow file and then 
attempting to crack the root password hash. If successful, this would 
lead to a full root compromise.

IV. DETECTION

iDEFENSE has confirmed the existence of this vulnerability in SGI IRIX 
version 6.5.22 (maintenance). It is suspected that previous and later 
versions of both the feature and maintenance revisions of IRIX 6.5 are 
also vulnerable.

V. WORKAROUND

Only allow trusted users local access to security-critical systems. 
Alternately, remove the setuid bit from inpview using:

chmod u-s /usr/sbin/gr_osview

VI. VENDOR RESPONSE

This vulnerability has been addressed in SGI BUG 930892.

Related security advisories are available at:
   http://www.sgi.com/support/security/advisories.html
   
Related patches are available at:
   http://www.sgi.com/support/security/patches.html
   ftp://patches.sgi.com/support/free/security/patches/

VII. CVE INFORMATION

The Common Vulnerabilities and Exposures (CVE) project has assigned the
names CAN-2005-0464 to these issues. This is a candidate for inclusion
in the CVE list (http://cve.mitre.org), which standardizes names for
security problems.

VIII. DISCLOSURE TIMELINE

02/18/2005  Initial vendor notification
02/23/2005  Initial vendor response
04/07/2005  Coordinated public disclosure

IX. CREDIT

The discoverer of this vulnerability wishes to remain anonymous.

Get paid for vulnerability research
http://www.idefense.com/poi/teams/vcp.jsp

Free tools, research and upcoming events
http://labs.idefense.com

X. LEGAL NOTICES

Copyright (c) 2005 iDEFENSE, Inc.

Permission is granted for the redistribution of this alert
electronically. It may not be edited in any way without the express
written consent of iDEFENSE. If you wish to reprint the whole or any
part of this alert in any other medium other than electronically, please
email customerservice@idefense.com for permission.

Disclaimer: The information in the advisory is believed to be accurate
at the time of publishing based on currently available information. Use
of the information constitutes acceptance for use in an AS IS condition.
There are no warranties with regard to this information. Neither the
author nor the publisher accepts any liability for any direct, indirect,
or consequential loss or damage arising from use of, or reliance on,
this information.

    

- 漏洞信息

15351
IRIX gr_osview -D Parameter Arbitrary File Segment Disclosure
Local Access Required Information Disclosure
Loss of Confidentiality
Exploit Public Vendor Verified

- 漏洞描述

IRIX contains a flaw that may lead to an unauthorized information disclosure. The issue is triggered when permissions are not correctly verified when opening description files using gr_osview, which will disclose the first line of arbitrary files via the "-d" and "-D" options, resulting in a loss of confidentiality.

- 时间线

2005-02-18 Unknow
2005-04-07 2005-04-07

- 解决方案

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

- 相关参考

- 漏洞作者

- 漏洞信息

SGI IRIX GR_OSView Information Disclosure Vulnerability
Design Error 13057
No Yes
2005-04-07 12:00:00 2009-07-12 12:56:00
Discovery is credited to an anonymous researcher.

- 受影响的程序版本

SGI IRIX 6.5.22 m

- 漏洞讨论

gr_osview is reported prone to an information disclosure vulnerability. This issue can help a local attacker to obtain sensitive information such as exposing an administrator's password hash and carrying out other attacks.

This issue has been confirmed in SGI IRIX 6.5.22 maintenance release. Other versions of IRIX may be vulnerable as well.

- 漏洞利用

An exploit is not required.

The following proof of concpet is available:
gr_osview -d -D /etc/shadow

- 解决方案

It is reported that the vendor has acknowledged this issue and released patches to address it. This cannot be confirmed at the moment. Please contact the vendor for more information.

Currently we are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: vuldb@securityfocus.com <mailto:vuldb@securityfocus.com>.

- 相关参考

 

 

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