Secunia - Stay Secure
Gartner
Home Corporate Website Jobs Updated Mailing Lists RSS Blog  Online Shop Advertise
Software Inspectors
  Scan Online
  Personal (PSI)
  Network (NSI 2.0)

Solutions For
  Security Professionals
  Security Vendors

Free Solutions For
  Open Communities
  Journalists & Media

Secunia Advisories
  Search
  Historic Advisories
  Listed By Product
  Listed By Vendor
  Statistics / Graphs
  Secunia Research
  Report Vulnerability
  About Advisories

Virus Information
  Chronological List
  Last 10 Virus Alerts
  About Virus Information

Secunia Customers
  Customer Area


Home Ftp Server Directory Traversal and Denial of Service Advisory Available in Danish 

Secunia Advisory: SA16556  
Release Date: 2005-08-25
Last Update: 2006-01-25

Critical:
Moderately critical
Impact: Exposure of system information
Exposure of sensitive information
DoS
Where: From remote
Solution Status: Unpatched

Software:Home FTP Server 1.x

CVE reference:CVE-2005-2726 (Secunia mirror)
CVE-2005-2727 (Secunia mirror)
CVE-2006-0356 (Secunia mirror)

This advisory is currently marked as unpatched!
- Companies can be alerted when a patch is released!


Description:
Two vulnerabilities have been discovered in Home FTP Server, which can be exploited by malicious users to access arbitrary files on a vulnerable system, and by malicious people to cause a DoS (Denial of Service)

1) An input validation error makes it possible to escape the FTP root and retrieve arbitrary files on the system via directory traversal attacks using the "../../" character sequence.

2) An error in the handling of the USER command with an overly long username can be exploited to cause the service to consume large amount of CPU resources and stop responding to requests.

The vulnerabilities have been confirmed in version r1.0.7 (build 45). Other versions may also be affected.

Solution:
Filter malicious characters and character sequences in a FTP proxy.

Grant only access to trusted users.

The impact of directory traversal attacks can be lessened by placing the FTP root on a separate drive letter or by restricting access using NTFS.

Provided and/or discovered by:
1) Donato Ferrante
2) cvh, Security Science Researchers Institute Of Iran.

Changelog:
2005-09-05: Added CVE reference.
2005-09-28: Added CVE reference.
2006-01-17: Added information about additional vulnerability.
2006-01-25: Added CVE reference.

Original Advisory:
http://www.autistici.org/fdonato/advisory/HomeFtpServer1.0.7-adv.txt
http://kapda.ir/advisory-211.html



Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.

Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

1 Related Secunia Security Advisories

1. Home FTP Server Passive Mode Denial of Service


Send Feedback to Secunia

If you have new information regarding this Secunia advisory or a product in our database, please send it to us using either our web form or email us at vuln@secunia.com.

Ideas, suggestions, and other feedback are most welcome.








Secunia PSI
Scan | Patch | Track
Free Download

Secunia Poll

Do you think it's important to read Setup/User Guides for applications for use within your network?


See Results   


Most Popular Advisories

1.
Mozilla Firefox Multiple Vulnerabilities
2.
Opera for Windows Unspecified Code Execution
3.
VLC Media Player WAV Processing Integer Overflow
4.
Novell eDirectory ds.dlm Module Buffer Overflow
5.
GNOME Glib PCRE pcre_compile.c Buffer Overflow Vulnerability
6.
WordPress WassUp Plugin "to_date" SQL Injection Vulnerability
7.
UnixWare ReliantHA Privilege Escalation Vulnerabilities
8.
Opera Canvas Functions Information Disclosure
9.
Fedora update for glib2
10.
Mozilla Thunderbird Multiple Vulnerabilities





Vulnerability Management - Terms & Conditions - Copyright 2002-2008 Secunia - Compliance - Contact Secunia