|Last update:||10 May 2019|
|Public Release Date:||20 May 2019|
Many older Lexmark devices embedded web server contain a cross site request forgery attack vulnerability that allows a local account password to be changed without the knowledge of the authenticated user.
A vulnerability has been identified in the embedded web server used in older generation Lexmark devices.
The vulnerability allows an attacker to fool an authenticated user into changing their password.
|CVSSv3 Base Score||6.5||(AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N)|
CVSSv3 scores are calculated in accordance with CVSS version 3.0 (https://www.first.org/cvss/user-guide)
Successful exploitation of this vulnerability can lead to the takeover of a local account on the device.
To determine a devices firmware level, select the “Settings”->“Reports”->”Menu Setting Page” menu item from the operator panel. If the firmware level listed under “Device Information” matches any level under
“Affected Releases”, then upgrade to a “Fixed Release”.
|Lexmark Models||Affected Releases||Fixed Releases|
|CS31x||LW71.VYL.P228 and later||LW71.VY4.P229 and later|
|CS41x||LW71.VY2.P228 and later||LW71.VY2.P229 and later|
|CX310||LW71.GM2.P228 and later||LW71.GM2.P229 and later|
|MS310, MS312, MS317||LW71.PRL.P228 and later||LW71.PRL.P229 and later|
|MS410, M1140||LW71.PRL.P228 and later||LW71.PRL.P229 and later|
|MS315, MS415, MS417||LW71.TL2.P228 and later||LW71.TL2.P229 and later|
|MX31x, XM1135||LW71.SB2.P228 and later||LW71.SB2.P229 and later|
|MS51x, MS610dn, MS617||LW71.PR2.P228 and later||LW71.PR2.P229 and later|
|M1145, M3150dn||LW71.PR2.P228 and later||LW71.PR2.P229 and later|
|MS71x, M5163dn||LW71.DN2.P228 and later||LW71.DN2.P229 and later|
|MS810, MS811, MS812, MS817, MS818||LW71.DN2.P228 and later||LW71.DN2.P229 and later|
Obtained Updated Software
To obtain firmware that resolves this issue or if you have special code, please contact Lexmark’s Technical Support Center at http://support.lexmark.com to find your local support center.
Lexmark recommends a firmware update if your device has affected firmware.
Exploitation and Public Announcements
Lexmark is not aware of any malicious use against Lexmark products of the vulnerability described in this advisory.
Lexmark would like to thank Daniel Romero and Mario Rivas of NCC group 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 http://support.lexmark.com/alerts
Future updates to this document will be posted on Lexmark’s web site at the same location.
|1.0||20 - May - 2019||Initial Public Release|