发布时间 :2000-10-20 00:00:00
修订时间 :2008-09-05 16:21:43

[原文]The go-gnome Helix GNOME pre-installer allows local users to overwrite arbitrary files via a symlink attack on various files in /tmp, including uudecode, snarf, and some installer files.

[CNNVD]Helix代码 "go-gnome" /tmp符号链接漏洞(CNNVD-200010-063)

        go-gnome Helix GNOME预安装存在漏洞。本地用户可以借助对包含 uudecode, snarf和一些安装文件的多种in /tmp文件的符号链接攻击覆盖任意文件。

- CVSS (基础分值)

CVSS分值: 6.2 [中等(MEDIUM)]
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: HIGH [漏洞利用存在特定的访问条件]
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
(VENDOR_ADVISORY)  BUGTRAQ  20000829 Helix Code Security Advisory - go-gnome pre-installer
(VENDOR_ADVISORY)  BUGTRAQ  20000829 More Helix Code installation problems (go-gnome)

- 漏洞信息

Helix代码 "go-gnome" /tmp符号链接漏洞
中危 其他
2000-10-20 00:00:00 2005-10-20 00:00:00
        go-gnome Helix GNOME预安装存在漏洞。本地用户可以借助对包含 uudecode, snarf和一些安装文件的多种in /tmp文件的符号链接攻击覆盖任意文件。

- 公告与补丁

        Helix Code Go-Gnome Pre-Installer 1.5

- 漏洞信息

Helix GNOME go-gnome Symlink Arbitrary File Overwrite
Local Access Required Race Condition

- 漏洞描述

Unknown or Incomplete

- 时间线

2000-08-29 Unknow
Unknow Unknow

- 解决方案

Unknown or Incomplete

- 相关参考

- 漏洞作者

Unknown or Incomplete

- 漏洞信息

Helix Code "go-gnome" /tmp Symlink Vulnerability
Origin Validation Error 1622
No Yes
2000-08-29 12:00:00 2009-07-11 02:56:00
First posted to Bugtraq by peterw <> on August 29, 2000.

- 受影响的程序版本

Helix Code Go-Gnome Pre-Installer 1.5
Helix Code Go-Gnome Pre-Installer 1.5 .2

- 不受影响的程序版本

Helix Code Go-Gnome Pre-Installer 1.5 .2

- 漏洞讨论

Go-Gnome is a system created by Helix Code to download the files necessary to install Helix Code Gnome easily and automatically. It is basically a shellscript served by that is dumped into a textfile with lynx and then executed. Go-Gnome, when run, creates a number of temporary files in /tmp with predictable filenames. Since /tmp is world writeable, if a malicious user knows in advance that root is going to be using go-gnome to install Gnome, symbolic links to arbitrary files on the filesystem with filenames of files written to /tmp by go-gnome can be created before go-gnome runs. When go-gnome is executed, it will attempt to write to these files but will instead write to whatever is pointed to by the symbolic links. Thus it is possible for an attacker, with knowledge that go-gnome will be run, to overwrite any files on the filesystem. This can lead to a denial of service or in some cases compromise of the system.

- 漏洞利用

Currently the SecurityFocus staff are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at:

- 解决方案

- 相关参考