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Insecure Library Loading
Moderately critical

IpSwitch WS_FTP Server with SSH Buffer Overflow Vulnerability

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Release Date:  2008-02-04    Last Update:  2008-08-29    Views:  8,443

Secunia Advisory SA28753

Where:

From remote

Impact:

DoS, System access

Solution Status:

Vendor Patch

CVE Reference(s):

Description


securfrog has discovered a vulnerability in IpSwitch WS_FTP Server with SSH, which can be exploited by malicious users to cause a DoS (Denial of Service) or potentially compromise a vulnerable system.

The vulnerability is caused due to a boundary error in the SSH Server Service (SSHServer.exe) when handling arguments to the "opendir" command. This can be exploited to cause a stack-based buffer overflow by passing an overly long argument to the affected command.

Successful exploitation may allow execution of arbitrary code.

The vulnerability is confirmed in IpSwitch WS_FTP Server with SSH version 6.1. Other versions may also be affected.


Solution:
Update to version 6.1.1.

Provided and/or discovered by:
securfrog

Original Advisory:
Ipswitch:
http://docs.ipswitch.com/WS_FTP_Server611/ReleaseNotes/index.htm?k_id=ipswitch_ftp_documents_worldwide_ws_ftpserverv611releasenotes#link12

securfrog:
http://www.milw0rm.com/exploits/5044

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: IpSwitch WS_FTP Server with SSH Buffer Overflow Vulnerability

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