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Insecure Library Loading
Moderately critical

WinCom LPD Total Multiple Vulnerabilities

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Release Date:  2008-02-05    Last Update:  2008-11-26    Views:  13,586

Secunia Advisory SA28763

Where:

From local network

Impact:

Security Bypass, DoS, System access

Solution Status:

Unpatched

CVE Reference(s):

Description


Luigi Auriemma has discovered some vulnerabilities in WinCom LPD Total, which can be exploited by malicious people to bypass certain security restrictions, cause a DoS (Denial of Service), or compromise a vulnerable system.

1) A boundary error in the Line Printer Daemon (LPDService.exe) when processing print jobs with an overly long control file name can be exploited to cause a buffer overflow by sending a specially crafted print job to default port 515/TCP.

Successful exploitation may allow execution of arbitrary code, but requires knowledge of an existing printer queue name.

2) Two boundary errors in the Line Printer Daemon can be exploited to cause stack-based buffer overflows by sending specially crafted packets to default port 13500/TCP.

Successful exploitation allows execution of arbitrary code.

3) Missing authentication checks in the Line Printer Daemon can be exploited to perform certain actions on the service such as e.g. adding a printer queue, which can be used to aid in exploiting vulnerability #1.

The vulnerabilities are confirmed in version 3.0.2.623. Other versions may also be affected.


Solution:
Restrict network access to the Line Printer Daemon service.

Provided and/or discovered by:
Luigi Auriemma

Original Advisory:
http://aluigi.altervista.org/adv/wincomalpd-adv.txt

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: WinCom LPD Total Multiple Vulnerabilities

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