CVE-2004-2065
CVSS7.5
发布时间 :2004-12-31 00:00:00
修订时间 :2016-10-17 23:05:53
NMCO    

[原文]DansGuardian 2.8 and earlier allows remote attackers to bypass the extension filtering rule via a hex encoded extension or . in the filename.


[CNNVD]DansGuardian Hex编码文件扩展名URI内容过滤绕过漏洞(CNNVD-200412-792)

        
        DansGuardian是一款基于WEB的开放源代码内容过滤程序。
        DansGuardian过滤过滤HEX编码的扩展名处理不正确,远程攻击者可以利用这个漏洞构建恶意文件名绕过过滤代码。
        如果攻击者把文件扩展名编码为HEX形式,那么受DansGuardian保护的系统用户在访问此文件时将不受过滤规则保护。
        

- CVSS (基础分值)

CVSS分值: 7.5 [严重(HIGH)]
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)

cpe:/a:daniel_barron:dansguardian:2.2.10
cpe:/a:daniel_barron:dansguardian:2.6.1.5
cpe:/a:daniel_barron:dansguardian:2.2.6
cpe:/a:daniel_barron:dansguardian:2.2.7
cpe:/a:daniel_barron:dansguardian:2.2.4
cpe:/a:daniel_barron:dansguardian:2.2.9
cpe:/a:daniel_barron:dansguardian:2.2.5
cpe:/a:daniel_barron:dansguardian:2.2.8
cpe:/a:daniel_barron:dansguardian:2.8
cpe:/a:daniel_barron:dansguardian:2.7.3.1
cpe:/a:daniel_barron:dansguardian:2.2.7.1
cpe:/a:daniel_barron:dansguardian:2.2.9.1
cpe:/a:daniel_barron:dansguardian:2.4.5.1

- OVAL (用于检测的技术细节)

未找到相关OVAL定义

- 官方数据库链接

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-2065
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2004-2065
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200412-792
(官方数据源) CNNVD

- 其它链接及资源

http://dansguardian.org/?page=history
(UNKNOWN)  CONFIRM  http://dansguardian.org/?page=history
http://marc.info/?l=bugtraq&m=109113126217408&w=2
(UNKNOWN)  BUGTRAQ  20040729 DansGuardian Hex Encoding URL Banned Extension Filter Bypass
http://securitytracker.com/id?1010817
(UNKNOWN)  SECTRACK  1010817
http://www.securityfocus.com/bid/10823
(PATCH)  BID  10823
http://xforce.iss.net/xforce/xfdb/16836
(UNKNOWN)  XF  dansguardian-filename-bypass-filtering(16836)

- 漏洞信息

DansGuardian Hex编码文件扩展名URI内容过滤绕过漏洞
高危 输入验证
2004-12-31 00:00:00 2005-10-20 00:00:00
远程  
        
        DansGuardian是一款基于WEB的开放源代码内容过滤程序。
        DansGuardian过滤过滤HEX编码的扩展名处理不正确,远程攻击者可以利用这个漏洞构建恶意文件名绕过过滤代码。
        如果攻击者把文件扩展名编码为HEX形式,那么受DansGuardian保护的系统用户在访问此文件时将不受过滤规则保护。
        

- 公告与补丁

        厂商补丁:
        Daniel Barron
        -------------
        目前厂商已经发布了升级补丁以修复这个安全问题,请到厂商的主页下载:
        Daniel Barron Upgrade dansguardian-2.8.0.1.source.tar.gz
        
        http://dansguardian.org/downloads/2/Stable/dansguardian-2.8.0.1.source.tar.gz

- 漏洞信息

8270
DansGuardian Hex Encoded Banned Extension Filter Bypass
Remote / Network Access Information Disclosure
Loss of Confidentiality
Exploit Public Vendor Verified

- 漏洞描述

DansGuardian contains a flaw that may allow a malicious user to bypass banned extensions filter. The issue is triggered when the attacker uses hexadecimal encoded characters in the URI file name to be retrieved. It is possible that the flaw may allow banned files to be viewed.

- 时间线

2004-07-29 2004-07-28
2004-07-29 Unknow

- 解决方案

Upgrade to version 2.8.0.1 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

 

 

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