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Lexmark Security Advisory: Cross Site Request Forgery Vulnerability (CVE-2020-10095)

Document ID:TE939

Usergroup :External
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Lexmark Security Advisory:

 Revision:  1.0
 Last update:     11-June-2020
 Public Release Date:  19-June-2020

 

Summary

Lexmark devices' embedded web server contains a cross site request forgery attack vulnerability that allows devices configuration to be altered without authorization.

 

    

References

CVE: CVE-2020-10095

 

 

Details

 
A vulnerability has been identified in the embedded web server used in Lexmark devices. The vulnerability allows the attacker to modify the configuration of the device.

 

CVSSv3 Base Score 6.8 (AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N)
Impact Subscore: 5.2  
Exploitability Subscore: 1.6  

 

CVSSv3 scores are calculated in accordance with CVSS version 3.1 (https://www.first.org/cvss/user-guide)

 

 

Impact
 

Successful exploitation of this vulnerability can lead to the modification of the configuration of the device.

 

 

Affected Products

 
To determine a devices firmware level, select the SettingsReports > 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
B2236 MSLSG.072.202 and previous MSLSG.072.203 and later
MS331, MS431 MSLBD.072.202 and previous MSLBD.072.203 and later
M1241 MSLBD.072.202 and previous MSLBD.072.203 and later
B3442, B3340 MSLBD.072.202 and previous MSLBD.072.203 and later
MB2236 MXLSG.072.202 and previous MXLSG.072.203 and later
MX431, MX331 MXLBD.072.202 and previous MXLBD.072.203 and later
MB3442 MXLBD.072.202 and previous MXLBD.072.203 and later
MS521 MSNGM.072.202 and previous MSNGM.072.203 and later
MS621, MS622 MSTGM.072.202 and previous MSTGM.072.203 and later
M1246, M3250 MSTGM.072.202 and previous MSTGM.072.203 and later
B2546, B2650 MSTGM.072.202 and previous MSTGM.072.203 and later
MX421, MX521, MX522, MX622 MXTGM.072.202 and previous MXTGM.072.203 and later
XM1242, XM1246, XM3250 MXTGM.072.202 and previous MXTGM.072.203 and later
MB2546, MB2650 MXTGM.072.202 and previous MXTGM.072.203 and later
MX321 MXNGM.072.202 and previous MXNGM.072.203 and later
MB2338 MXNGM.072.202 and previous MXNGM.072.203 and later
MS725, MS821 MSNGW.072.202 and previous MSNGW.072.203 and later
MS822, MS823, MS825, MS826 MSTGW.072.202 and previous MSTGW.072.203 and later
M5255, M5270 MSTGW.072.202 and previous MSTGW.072.203 and later
B2865 MSTGW.072.202 and previous MSTGW.072.203 and later
MX721, MX722, MX822, MX826 MXTGW.072.202 and previous MXTGW.072.203 and later
XM5365, XM7355, XM7370 MXTGW.072.202 and previous MXTGW.072.203 and later
C3426 CSLBN.072.202 and previous CSLBN.072.203 and later
CS431 CSLBN.072.202 and previous CSLBN.072.203 and later
CS331 CSLBL.072.202 and previous CSLBL.072.203 and later
C3224 CSLBL.072.202 and previous CSLBL.072.203 and later
C3326 CSLBL.072.202 and previous CSLBL.072.203 and later
MC3426 CXLBN.072.202 and previous CXLBN.072.203 and later
CX431 CXLBN.072.202 and previous CXLBN.072.203 and later
MC3326, MC3224 CXLBL.072.202 and previous CXLBL.072.203 and later
CX331 CXLBL.072.202 and previous CXLBL.072.203 and later
CS622 CSTZJ.072.202 and previous CSTZJ.072.203 and later
C2240 CSTZJ.072.202 and previous CSTZJ.072.203 and later
CS421, CS521 CSNZJ.072.202 and previous CSTZJ.072.203 and later
C2535, C2325, C2425 CSNZJ.072.202 and previous CSTZJ.072.203 and later
CX522, CX622, CX625 CXTZJ.072.202 and previous CXTZJ.072.203 and later
XC2235, XC4240 CXTZJ.072.202 and previous CXTZJ.072.203 and later
MC2535, MC2640 CXTZJ.072.202 and previous CXTZJ.072.203 and later
CX421 CXNZJ.072.202 and previous CXNZJ.072.203 and later
MC2325, MC2425 CXNZJ.072.202 and previous CXNZJ.072.203 and later
CX820, CX825, CX860 CXTPP.072.202 and previous CXTPP.072.203 and later
XC6152, XC8155, XC8160 CXTPP.072.202 and previous CXTPP.072.203 and later
CS820 CSTPP.072.202 and previous CSTPP.072.203 and later
C6160 CSTPP.072.202 and previous CSTPP.072.203 and later
CS720, CS725 CSTAT.072.202 and previous CSTAT.072.203 and later
C4150 CSTAT.072.202 and previous CSTAT.072.203 and later
CX725 CXTAT.072.202 and previous CXTAT.072.203 and later
XC4140, XC4150 CXTAT.072.202 and previous CXTAT.072.203 and later
CS921, CS923 CSTMH.072.202 and previous CSTMH.072.203 and later
CX921, CX922, CX923, CX924 CXTMH.072.202 and previous CXTMH.072.203 and later
XC92xx CXTMH.072.202 and previous CXTMH.072.203 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.

 

 

Workarounds


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.

  

  

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.

  

   

Distribution


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.

  

  

Revision History

 

Revision Date Reason
1.0 19 - June- 2020 Initial Public Release

  

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