Headline
CVE-2022-43608: ZDI-22-1666
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Canon imageCLASS MF644Cdw 10.03 printers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the BJNP service. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-16032.
December 15th, 2022
Canon imageCLASS MF644Cdw BJNP Integer Overflow Remote Code Execution Vulnerability****ZDI-22-1666
ZDI-CAN-16032
CVE ID
CVE-2022-43608
CVSS SCORE
8.8, (AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
AFFECTED VENDORS
Canon
AFFECTED PRODUCTS
imageCLASS MF644Cdw
VULNERABILITY DETAILS
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Canon imageCLASS MF644Cdw printers. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the BJNP service. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of root.
ADDITIONAL DETAILS
Canon has issued an update to correct this vulnerability. More details can be found at:
https://www.psirt.canon/advisory-information/cve-2022-43608_20221125
DISCLOSURE TIMELINE
- 2022-07-14 - Vulnerability reported to vendor
- 2022-12-15 - Coordinated public release of advisory
CREDIT
Angelboy(@scwuaptx) from DEVCORE Research Team
BACK TO ADVISORIES
Related news
Arbitrary Files can be installed in the Setting Data Import function of Office / Small Office Multifunction Printers and Laser Printers(*). *:Satera LBP660C Series/LBP620C Series/MF740C Series/MF640C Series firmware Ver.11.04 and earlier sold in Japan. Color imageCLASS LBP660C Series/LBP 620C Series/X LBP1127C/MF740C Series/MF640C Series/X MF1127C firmware Ver.11.04 and earlier sold in US. i-SENSYS LBP660C Series/LBP620C Series/MF740C Series/MF640C Series, C1127P, C1127iF, C1127i firmware Ver.11.04 and earlier sold in Europe.