发布时间 :1997-07-04 00:00:00
修订时间 :2016-10-17 22:02:55

[原文]wu-ftpd 2.4 FTP server does not properly drop privileges when an ABOR (abort file transfer) command is executed during a file transfer, which causes a signal to be handled incorrectly and allows local and possibly remote attackers to read arbitrary files.

[CNNVD]wu-ftpd 2.4 FTP server ABOR授权问题漏洞(CNNVD-199707-018)

        wu-ftpd 2.4版本的FTP服务器在传输文件的时候执行ABOR(中止文件传输)命令不能正确地降低特权,这会导致信号处理不正确,本地以及可能远程攻击者可以借助该漏洞读取任意文件。

- CVSS (基础分值)

CVSS分值: 5 [中等(MEDIUM)]
机密性影响: [--]
完整性影响: [--]
可用性影响: [--]
攻击复杂度: [--]
攻击向量: [--]
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)  BUGTRAQ  19970104 serious security bug in wu-ftpd v2.4
(UNKNOWN)  BUGTRAQ  19970105 BoS: serious security bug in wu-ftpd v2.4 -- PATCH
(UNKNOWN)  XF  wuftpd-abor-gain-privileges(7169)

- 漏洞信息

wu-ftpd 2.4 FTP server ABOR授权问题漏洞
中危 未知
1997-07-04 00:00:00 2006-09-20 00:00:00
        wu-ftpd 2.4版本的FTP服务器在传输文件的时候执行ABOR(中止文件传输)命令不能正确地降低特权,这会导致信号处理不正确,本地以及可能远程攻击者可以借助该漏洞读取任意文件。

- 公告与补丁


- 漏洞信息

WU-FTPD ABOR Command Arbitrary File Access
Remote / Network Access Input Manipulation
Loss of Confidentiality, Loss of Integrity
Exploit Public

- 漏洞描述

wu-ftpd contains a flaw that may allow a malicious user to gain access to unauthorized privileges. The issue is triggered when an ftp client is transferring a file, then closes the connection and sends an ABOR command, which causes the server to execute the dologout() function, allowing the user to gain root privileges. This flaw may lead to a loss of confidentiality and/or integrity.

- 时间线

1997-01-04 1997-01-02
1997-01-04 Unknow

- 解决方案

Upgrade to version 2.4.2 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

- 相关参考

- 漏洞作者