发布时间 :1997-04-07 00:00:00
修订时间 :2008-09-10 15:01:40

[原文]Sysinstall in FreeBSD 2.2.1 and earlier, when configuring anonymous FTP, creates the ftp user without a password and with /bin/date as the shell, which could allow attackers to gain access to certain system resources.

[CNNVD]FreeBSD Sysinstall信息泄漏漏洞(CNNVD-199704-005)

        FreeBSD 2.2.1及早期版本上的Sysinstall配置匿名FTP时创建无密码和用/bin/date作为壳的ftp用户。攻击者可以利用该漏洞访问特定系统资源。

- CVSS (基础分值)

CVSS分值: 7.5 [严重(HIGH)]
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: [--]
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:2.2.1FreeBSD 2.2.1
cpe:/o:freebsd:freebsd:2.1.7FreeBSD 2.1.7
cpe:/o:freebsd:freebsd:2.1.5FreeBSD 2.1.5
cpe:/o:freebsd:freebsd:2.1.6FreeBSD 2.1.6
cpe:/o:freebsd:freebsd:2.1.0FreeBSD 2.1.0
cpe:/o:freebsd:freebsd:2.2FreeBSD 2.2

- 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  freebsd-sysinstall-ftp-password(7537)

- 漏洞信息

FreeBSD Sysinstall信息泄漏漏洞
高危 未知
1997-04-07 00:00:00 2005-05-02 00:00:00
        FreeBSD 2.2.1及早期版本上的Sysinstall配置匿名FTP时创建无密码和用/bin/date作为壳的ftp用户。攻击者可以利用该漏洞访问特定系统资源。

- 公告与补丁


- 漏洞信息

FreeBSD Sysinstall Anonymous FTP Misconfiguration
Remote / Network Access Misconfiguration
Loss of Integrity
Exploit Public

- 漏洞描述

FreeBSD contains a flaw that may allow a malicious user to access the platform. The issue is triggered when a malicious user logs onto the victim system using a passwordless account "ftp" that is automatically created by sysinstall, while an authorized user is running the sysinstall utility. It is possible that the flaw may allow shell access (via /bin/date) resulting in a loss of integrity.

- 时间线

1997-04-07 Unknow
1997-04-07 Unknow

- 解决方案

It is possible to correct the flaw by implementing the following workaround: use the vipw command to change "ftp::" to "ftp:*:" and the shell from "/bin/date" to "/nonexistent". Also, FreeBSD has released a patch.

- 相关参考

- 漏洞作者

Unknown or Incomplete