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Lexmark Security Advisory: Password Reset Vulnerability

Document ID:TE586
03/10/14 Properties  


Lexmark Security Advisory

Revision: 2.0

Last update: 11 Mar 2014

Public Release Date: 31 Jan 2014



Password reset vulnerability. Some older Lexmark Printers and MarkNet devices will fail to authenticate a specially crafted password reset request.  This vulnerability can be exploited to bypass authentication configured on the device.



CVE:   CVE-2013-6032


Affected Products

Selected Lexmark Laser printer products and MarkNet devices; for specific details see “Software Versions & Fixes”



Some older Lexmark Printers and MarkNet devices provide a simple “Password Protect” feature to authorize access to device menus.  On vulnerable devices it is possible to craft an HTML request to change these passwords that will bypass authentication, allowing the passwords to be changed or removed.



Successful exploitation of this vulnerability can lead to unauthorized disclosure and/or modification of printer settings.


Vulnerability Scoring Details

CVSS Base Score: 9.0

Impact Subscore: 8.5

Exploitability Subscore: 10 


Access Vector: Network          
Confidentiality: Partial
Access Complexity: Low     
Integrity: Partial
Authentication: None     
Availability: Complete

CVSS scores are calculated in accordance with CVSS version 2.0   (


Software Versions and Fixes

 Updated software that removes the vulnerability described in this advisory is available for the following devices:

Lexmark Models Affected Releases Fixed Releases
LC.BR.P141 and previous
LC.BR.P142 and later
LC4.BE.P487 and previous
Contact Lexmark
X644 & X646
LC2.MC.P373 and previous
LC2.MC.P374 and later
LC2.MB.P318 and previous
Contact Lexmark
LS.HA.P252 and previous
Contact Lexmark
LS.ST.P343 and previous
LS.ST.P347 and later
LC2.TI.P325 and previous
Contact Lexmark
LC.JO.P091 and previous
Contact Lexmark
LS.TA.P152 and previous
Contact Lexmark
LC.IO.P187 and previous
Contact Lexmark
LC2.IO.P335 and previous
Contact Lexmark
LC.CM.P052 and previous
Contact Lexmark
LC2.TR.P291 and previous
Contact Lexmark
LS.SW.P069 and previous
Contact Lexmark
LS.FA.P150 and previous
Contact Lexmark
LCL.CU.P114 and previous
Contact Lexmark
LC.MD.P119 and previous
Contact Lexmark
GO.GO.N206 and previous
Contact Lexmark
LC.CO.N309 and previous
Contact Lexmark
LM.SZ.P124 and previous Contact Lexmark
LE.PH.P129 and previous Contact Lexmark
E250 LE.PM.P126 and previous Contact Lexmark



Disabling the HTTP service (Embedded Web Server) on the device blocks the ability to exploit this vulnerability.

If the HTTP service must be left enabled, the problem can be mitigated by restricting the network devices that are permitted to communicate with the device. This can be accomplished by utilizing either the “Restricted Server List” feature, or via IPsec configuration on devices that support these features.  Restricting the number of devices that can communicate with the printer limits the devices that can attempt to exploit the vulnerability.


Obtaining Updated Software

To obtain firmware that resolves this issue or if you have special code, please contact Lexmark’s Technical Support Center at to find your local support center.


Exploitation and Public Announcements

Lexmark is not aware of any malicious use of the vulnerability described in this advisory. 

Lexmark would like to thank Jeff Popio and the CERT Coordination Center  for bringing this issue to our attention.


Status of this Notice:

This document is provided on an "as is" basis and is provided without any express or implied guarantee or warranty whatsoever, including but not limited to the warranties of merchantability and fitness for a particular use or purpose. Lexmark reserves the right to change or update this document at any time.



This advisory is posted on Lexmark’s web site at

Future updates to this document will be posted on Lexmark’s web site at the same location.


Revision History

Revision          Date                  Reason
1.0          31-Jan-2014 Initial Public Release
2.0 11-Mar-2014 PE-release update for T64x


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