Vulnerability Note VU#108062

Lexmark laser printers contain multiple vulnerabilities

Original Release date: 31 Jan 2014 | Last revised: 31 Jan 2014

Overview

Certain Lexmark devices are vulnerable to unverified password changes and stored cross-site scripting attacks.

Description

CWE-620: Unverified Password Change - CVE-2013-6032

Certain models of Lexmark laser printers and MarkNet devices are vulnerable to an attack which allows a remote unauthenticated attacker to change the administrative password of the printer's web administration interface. The interface does not perform sufficient validation of the vac.255.GENPASSWORD parameter in POST requests to the /cgi-bin/postpf/cgi-bin/dynamic/config/config.html page, allowing an unauthenticated remote attacker to reset the administrative password to an empty string.

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') - CVE-2013-6033
Certain models of Lexmark laser printers are vulnerable to stored cross-site scripting attacks. The printers' administrative web interface does not perform sufficient validation of user input to the "Location" and "Contact Name" fields in the "General Settings" configuration page.

A list of affected models and firmware versions can be found at Lexmark's advisory page.

The CVSS score reflects CVE-2013-6032.

Impact

An attacker may be able to run arbitrary script in the context of a victim's browser. The attacker may also be able to gain full administrative control of the printer.

Solution

Apply an Update

Lexmark advises users to update to the latest firmware version. A list of affected models and firmware versions, as well as accompanying fixes, can be found at Lexmark's advisory page.

Vendor Information (Learn More)

VendorStatusDate NotifiedDate Updated
Lexmark InternationalAffected16 Oct 201324 Jan 2014
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group Score Vector
Base 9.0 AV:N/AC:L/Au:N/C:P/I:P/A:C
Temporal 7.4 E:F/RL:OF/RC:C
Environmental 1.9 CDP:N/TD:L/CR:ND/IR:ND/AR:ND

References

Credit

Thanks to Jeff Popio for reporting this vulnerability.

This document was written by Todd Lewellen.

Other Information

  • CVE IDs: CVE-2013-6032 CVE-2013-6033
  • Date Public: 31 Jan 2014
  • Date First Published: 31 Jan 2014
  • Date Last Updated: 31 Jan 2014
  • Document Revision: 18

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