发布时间 :2001-10-18 00:00:00
修订时间 :2008-09-05 16:24:55

[原文]Directory traversal vulnerability in Icecast 1.3.10 and earlier allows remote attackers to read arbitrary files via a modified .. (dot dot) attack using encoded URL characters.


        Icecast 1.3.10及其早期版本存在目录遍历漏洞。远程攻击者借助使用已编码的URL字符修改过的..(点 点)攻击读取任意文件。

- CVSS (基础分值)

CVSS分值: 5 [中等(MEDIUM)]
机密性影响: PARTIAL [很可能造成信息泄露]
完整性影响: NONE [不会对系统完整性产生影响]
可用性影响: NONE [对系统可用性无影响]
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)


- 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  20010626 Advisory
(UNKNOWN)  XF  icecast-dot-directory-traversal(6752)

- 漏洞信息

中危 路径遍历
2001-10-18 00:00:00 2005-05-02 00:00:00
        Icecast 1.3.10及其早期版本存在目录遍历漏洞。远程攻击者借助使用已编码的URL字符修改过的..(点 点)攻击读取任意文件。

- 公告与补丁


- 漏洞信息 (20972)

Icecast 1.1.x/1.3.x Directory Traversal Vulnerability (EDBID:20972)
multiple remote
2001-06-26 Verified
0 gollum
N/A [点击下载]

Icecast is an open source audio-streaming server for both Unix and Microsoft Windows systems.

Icecast does not filter encoded characters from URLs when receiving web requests. If a remote attacker crafts a URL containing the ASCII equivalent of directory traversal characters, it is possible to escape Icecast's "root" directory. This will allow the attacker to view files readable by the ownership and group membership of the icecast server. 

Mp3-files residing outside the Web catalog can be accessed by replacing ascii-values for each ".", thus using "/%2E%2E/" instead of "/../" will walk one folder downward.

Place a mp3-file named "test1.mp3" in the directory below the one you specified in the variable "staticdir".

Then write the following in your browser:

http://localhost:8000/file/../test1.mp3 - Will fail in getting the file

http://localhost:8000/file/%2E%2E/test1.mp3 - Will succeed in getting the file 		

- 漏洞信息

Icecast Encoded Traversal Arbitrary File Access
Remote / Network Access Input Manipulation
Loss of Confidentiality, Loss of Integrity
Exploit Public

- 漏洞描述

Icecast contains a flaw that allows a remote attacker to access arbitrary files outside of the web path. The issue is due to the server not properly sanitizing user input, specifically traversal style attacks (../../) supplied via the URI.

- 时间线

2001-06-26 Unknow
2001-06-26 Unknow

- 解决方案

Upgrade to version 1.3.12 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