发布时间 :1994-01-01 00:00:00
修订时间 :2008-09-09 08:33:54

[原文]The wall daemon can be used for denial of service, social engineering attacks, or to execute remote commands.

[CNNVD]wall daemon漏洞(CNNVD-199401-001)

        wall daemon存在漏洞。可以借助该漏洞导致服务拒绝,社会工程攻击或者执行远程命令。

- CVSS (基础分值)

CVSS分值: 6.8 [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: MEDIUM [漏洞利用存在一定的访问条件]
攻击向量: NETWORK [攻击者不需要获取内网访问权或本地访问权]
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

- 漏洞信息

wall daemon漏洞
中危 未知
1994-01-01 00:00:00 2007-07-16 00:00:00
        wall daemon存在漏洞。可以借助该漏洞导致服务拒绝,社会工程攻击或者执行远程命令。

- 公告与补丁


- 漏洞信息

Multiple Unix rpc.walld Message Spoofing
Local Access Required Denial of Service, Input Manipulation
Loss of Confidentiality, Loss of Availability
Exploit Public

- 漏洞描述

The Unix daemon rpc.walld contains a flaw that may allow a malicious user to conduct social engineering attacks via spoofed messages. The issue is triggered when a user sends a message via the service, which checks to see if the message is being sent from a local or a remote user by examining whether stderr corresponds to a tty; if it does not, the program checks to see if the first five bytes of the message are "From:", and uses that string as the user from which the message will appear to have been sent. Thus, if a local user simply closes stderr and then sends their message, they can supply any username for the From: field, effectively allowing message spoofing that could result in a loss of integrity. If enough of these messages are sent in quick succession, a denial of service can be performed by filling users' screens and not allowing them to interact with the system.

- 时间线

1994-01-01 Unknow
1994-01-01 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: disable the rpc.walld service.

- 相关参考

- 漏洞作者

Unknown or Incomplete