CVE-2000-0163
CVSS4.6
发布时间 :2000-02-21 00:00:00
修订时间 :2008-09-10 15:03:08
NMCOES    

[原文]asmon and ascpu in FreeBSD allow local users to gain root privileges via a configuration file.


[CNNVD]FreeBSD Asmon/Ascpu漏洞(CNNVD-200002-058)

        FreeBSD中asmon和ascpu存在漏洞。本地用户借助配置文件可以提升根特权。

- 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:freebsd:freebsd:3.1FreeBSD 3.1
cpe:/o:freebsd:freebsd:3.4FreeBSD 3.4
cpe:/o:freebsd:freebsd:3.2FreeBSD 3.2
cpe:/o:freebsd:freebsd:3.0FreeBSD 3.0
cpe:/o:freebsd:freebsd:3.3FreeBSD 3.3

- 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-2000-0163
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2000-0163
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200002-058
(官方数据源) CNNVD

- 其它链接及资源

http://www.securityfocus.com/templates/advisory.html?id=2092
(UNKNOWN)  FREEBSD  FreeBSD-SA-00:03
http://www.securityfocus.com/bid/996
(UNKNOWN)  BID  996

- 漏洞信息

FreeBSD Asmon/Ascpu漏洞
中危 访问验证错误
2000-02-21 00:00:00 2005-10-20 00:00:00
本地  
        FreeBSD中asmon和ascpu存在漏洞。本地用户借助配置文件可以提升根特权。

- 公告与补丁

        FreeBSD has released a new ports package for these applications. They can be downloaded from:
        http://www.si.freebsd.org/es/ports/sysutils.html
         or
         ftp://ftp.freebsd.org/pub/FreeBSD/ports/packages/sysutils/asmon-0.60.tgz
         ftp://ftp.freebsd.org/pub/FreeBSD/ports/packages/sysutils/ascpu-1.8.tgz
        port skeletons are available at:
        http://www.freebsd.org/ports/

- 漏洞信息 (19756)

FreeBSD 3.0/3.1/3.2/3.3/3.4 Asmon/Ascpu Vulnerability (EDBID:19756)
freebsd local
2000-02-19 Verified
0 Anonymous
N/A [点击下载]
source: http://www.securityfocus.com/bid/996/info

A vulnerability exists in both the ascpu and asmon ports to FreeBSD. Ascpu and asmon are applets for the popular window manager AfterStep. They retain the look and feel of this window manager, and integrate well in to it's "dock" toolbar. As part of the port to FreeBSD, it was deemed necessary to give them access to /dev/kmem, necessitating them being installed setgid kmem. By passing a command line option, it is possible for an attacker to cause these applications to execute arbitrary commands with group 'kmem' privileges.

It should be noted that neither of these programs are truly part of FreeBSD. They are not part of any distribution of FreeBSD. Instead, they are part of the 'ports' section. The over 3000 packages included in ports are presented as-is, and in many cases have not been audited for security problems.

Exploit:

asmon -e "xterm" 		

- 漏洞信息

6005
FreeBSD asmon Configuration File Privilege Elevation
Local Access Required Input Manipulation
Loss of Integrity Workaround, Upgrade

- 漏洞描述

FreeBSD contains the port asmon, which is flawed and may allow a malicious user to gain access to unauthorized privileges. The issue is triggered when a malicious user passes a command line option via a configuration file causing asmon to execute arbitrary commands with group 'kmem' privileges. This flaw may lead to a loss of integrity.

- 时间线

2000-02-19 Unknow
Unknow Unknow

- 解决方案

Upgrade to version FreeBSD 3.5 or higher, or specifically asmon 0.60 or higher, as it has been reported to fix this vulnerability. It is also possible to correct the flaw by implementing the following workaround(s): (1) Upgrade your entire ports collection and rebuild the asmon port, (2) Reinstall the asmon package, (3) Download a port skeleton of asmon, (4) Use the portcheckout utility to automate the aforementioned option (3).

- 相关参考

- 漏洞作者

Unknown or Incomplete

- 漏洞信息

FreeBSD Asmon/Ascpu Vulnerability
Access Validation Error 996
No Yes
2000-02-19 12:00:00 2009-07-11 01:56:00
This vulnerability was published in a FreeBSD Security Advisory, numbered SA-00:03.asmon, on February 19, 2000.

- 受影响的程序版本

FreeBSD FreeBSD 3.4
FreeBSD FreeBSD 3.3
FreeBSD FreeBSD 3.2
FreeBSD FreeBSD 3.1
FreeBSD FreeBSD 3.0

- 漏洞讨论

A vulnerability exists in both the ascpu and asmon ports to FreeBSD. Ascpu and asmon are applets for the popular window manager AfterStep. They retain the look and feel of this window manager, and integrate well in to it's "dock" toolbar. As part of the port to FreeBSD, it was deemed necessary to give them access to /dev/kmem, necessitating them being installed setgid kmem. By passing a command line option, it is possible for an attacker to cause these applications to execute arbitrary commands with group 'kmem' privileges.

It should be noted that neither of these programs are truly part of FreeBSD. They are not part of any distribution of FreeBSD. Instead, they are part of the 'ports' section. The over 3000 packages included in ports are presented as-is, and in many cases have not been audited for security problems.

- 漏洞利用

asmon -e "xterm"

- 解决方案

FreeBSD has released a new ports package for these applications. They can be downloaded from:

http://www.si.freebsd.org/es/ports/sysutils.html
or
ftp://ftp.freebsd.org/pub/FreeBSD/ports/packages/sysutils/asmon-0.60.tgz
ftp://ftp.freebsd.org/pub/FreeBSD/ports/packages/sysutils/ascpu-1.8.tgz

port skeletons are available at:
http://www.freebsd.org/ports/

- 相关参考

 

 

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