Published:2022/01/19  Last Updated:2022/01/19

JVN#64806328
Canon laser printers and small office multifunctional printers vulnerable to cross-site scripting

Overview

Multiple Canon laser printers and small office multifunctional printers contain a cross-site scripting vulnerability.

Products Affected

A wide range of the products is affected.
For more information, refer to the following information provided by the developer.

Description

Multiple Canon laser printers and small office multifunctional printers contain a stored cross-site scripting vulnerability (CWE-79).

Impact

An arbitrary script may be executed on the web browser of the user who is accessing the product settings screen.

Solution

Update the firmware
Update the firmware to the latest version according to the information provided by the developer.

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

CVSS v3 CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Base Score: 4.8
Attack Vector(AV) Physical (P) Local (L) Adjacent (A) Network (N)
Attack Complexity(AC) High (H) Low (L)
Privileges Required(PR) High (H) Low (L) None (N)
User Interaction(UI) Required (R) None (N)
Scope(S) Unchanged (U) Changed (C)
Confidentiality Impact(C) None (N) Low (L) High (H)
Integrity Impact(I) None (N) Low (L) High (H)
Availability Impact(A) None (N) Low (L) High (H)
CVSS v2 AV:N/AC:M/Au:S/C:N/I:P/A:N
Base Score: 3.5
Access Vector(AV) Local (L) Adjacent Network (A) Network (N)
Access Complexity(AC) High (H) Medium (M) Low (L)
Authentication(Au) Multiple (M) Single (S) None (N)
Confidentiality Impact(C) None (N) Partial (P) Complete (C)
Integrity Impact(I) None (N) Partial (P) Complete (C)
Availability Impact(A) None (N) Partial (P) Complete (C)

Credit

Murashima Masahiro of IERAE SECURITY INC. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE CVE-2021-20877
JVN iPedia JVNDB-2022-000001