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Easy File Sharing Web Server Two Vulnerabilities
Secunia Advisory: SA19178
Release Date: 2006-03-10
Last Update: 2006-03-16
Popularity: 5,890 views

Critical:
Moderately critical
Impact: Cross Site Scripting
DoS
Where: From remote
Solution Status: Unpatched

Software:Easy File Sharing Web Server 3.x

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CVE reference:CVE-2006-1159
CVE-2006-1160


Description:
Revnic Vasile has reported two vulnerabilities in Easy File Sharing Web Server, which can be exploited by malicious users to conduct script insertion attacks and by malicious people to cause a DoS (Denial of Service).

1) A format-string error exists within the logging functionality when logging received HTTP requests. This can be exploited to crash the server via a specially-crafted request.

Example:
http://[host]/%25n

2) Input passed in the Description field when uploading a file or when creating a folder isn't sanitised before being saved. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected website when a folder containing malicious file/folder description is viewed.

The vulnerabilities have been confirmed in version 3.2. Other versions may also be affected.

Solution:
Filter malicious characters and character sequences in a proxy or firewall with a URL filtering capabilities.

Provided and/or discovered by:
Revnic Vasile

Changelog:
2006-03-16: Added CVE references.


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