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602LAN SUITE Local File Detection and Denial of Service Advisory Available in Danish 

Secunia Advisory: SA15231  
Release Date: 2005-05-03
Last Update: 2005-05-11

Critical:
Less critical
Impact: Exposure of system information
DoS
Where: From remote
Solution Status: Vendor Patch

Software:602LAN SUITE 2004

CVE reference:CVE-2005-1423 (Secunia mirror)

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Description:
Dr_insane has discovered a vulnerability in 602LAN SUITE, which can be exploited by malicious people to detect the presence of local files and cause a DoS (Denial of Service).

The problem is that no redirection occurs when accessing the "mail" script with the "A" parameter referencing a valid local file via directory traversal attacks.

Example:
http://[host]/mail?A=/../../../../../../../[file]

This can further be exploited to cause a vulnerable server to create a large amount of processes consuming memory by sending multiple requests (several thousand).

The vulnerability has been confirmed in version 2004.0.05.0413. Other versions may also be affected.

Solution:
Update to build 2004.0.05.0509.
http://www.software602.com/download/

Provided and/or discovered by:
Dr_insane

Changelog:
2005-05-09: Added CVE reference.
2005-05-11: Updated "Solution" section.

Original Advisory:
http://support.software602.com/products/ls2004/releasenotes.asp



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.

2 Related Secunia Security Advisories

1. 602LAN SUITE Webmail Arbitrary File Upload Vulnerability
2. 602LAN SUITE Two Denial of Service Vulnerabilities


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