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.
Vendor Status
References
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
| 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) |
| 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 |