发布时间 :2002-05-29 00:00:00
修订时间 :2008-09-10 20:00:48

[原文]wmtv 0.6.5 and earlier allows local users to modify arbitrary files via a symlink attack on a configuration file.


        WMTV 0.6.5及其更早版本存在漏洞。本地用户可以借助配置文件上的符号链接攻击修改任意文件。

- 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  wmtv-config-file-symlink(8110)
(UNKNOWN)  BID  4052

- 漏洞信息

高危 访问验证错误
2002-05-29 00:00:00 2005-10-20 00:00:00
        WMTV 0.6.5及其更早版本存在漏洞。本地用户可以借助配置文件上的符号链接攻击修改任意文件。

- 公告与补丁

        Upgrades are available.
        wliang wmtv 0.6.5

- 漏洞信息

wmtv Symlink Arbitrary File Modification
Local Access Required Race Condition

- 漏洞描述

Unknown or Incomplete

- 时间线

2002-02-07 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

WMTV Configuration File Symlink Vulnerability
Access Validation Error 4052
No Yes
2002-02-07 12:00:00 2009-07-11 10:56:00
Discovery of this issue is credited to Nicolas Boullis.

- 受影响的程序版本

wliang wmtv 0.6.5
- Debian Linux 2.2

- 漏洞讨论

wmtv is a video4linux TV player for windowmaker. It runs on Linux and Unix variants using windowmaker. It ships with Debian GNU/Linux 2.2.

A problem has been discovered in wmtv that may allow a local user to launch symlink attacks against the host.

Affected versions of wmtv are installed setuid root, and require these privileges to function. As a result, the wmtv configuration file is written back as the superuser.

Successful symlink attacks may cause critical files to be overwritten by the local attacker, or may result in the attacker gaining elevated privileges.

This appears to be a problem with the version of wmtp that ships with Debian/GNU Linux due to the permissions that are required to run vulnerable versions of the software.

- 漏洞利用

There is no exploit code required.

- 解决方案

Upgrades are available.

wliang wmtv 0.6.5

- 相关参考