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Last updated: 9/22/2014 12:19:21 AM

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National Cyber Awareness System

Vulnerability Summary for CVE-2010-0618

Original release date: 03/24/2010
Last revised: 03/31/2010
Source: US-CERT/NIST

Overview

The flood-protection feature in the base, IPDS DLE, Forms DLE, Barcode DLE, Prescribe DLE, and Printcryption DLE components on certain Lexmark laser and inkjet printers and MarkNet devices allows remote attackers to cause a denial of service (TCP outage) by making many passive FTP connections and then aborting these connections.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 5.0 (MEDIUM) (AV:N/AC:L/Au:N/C:N/I:N/A:P) (legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows disruption of service
Per: http://support.lexmark.com/index?page=content&id=TE85&locale=EN&userlocale=EN_US#Printcryption 'Details Lexmark products have connection flood protection mechanisms that limit the number of simultaneous network connections that can be made to the device on most TCP service ports. (21/FTP 79/Finger, 515/LPD, 631/IPP, 5001, 9100-9104, 9200, 9300, 9400, 9500-9501 & 9600) The FTP service exception handler does not properly maintain the state of the flood protection when passive FTP connections are aborted. Once a sufficient number of passive FTP connections have timed out (typically 15), the flood protection is enabled and is never reset. The flood protection can be reset by resetting the network adapter, or by power cycling the device. The firmware update that resolves this vulnerability automatically resets the flood protection after the “Network Job Timeout” has expired or 90 seconds if the “Network Job Timeout” is disabled.'

References to Advisories, Solutions, and Tools

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External Source: CONFIRM
Name: http://support.lexmark.com/index?page=content&id=TE85&locale=EN&userlocale=EN_US
Type: Advisory
External Source: BUGTRAQ
Name: 20100322 {PRL} Lexmark Multiple Laser printer FTP Remote Denial of Services
External Source: SECUNIA
Name: 39056
External Source: BID
Name: 38906
External Source: MISC
Name: http://www.protekresearchlab.com/index.php?option=com_content&view=article&id=11&Itemid=11

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