CVE-2021-20872 Information

Description

Protection mechanism failure vulnerability in KONICA MINOLTA bizhub series (bizhub C750i G00-35 and earlier bizhub C650i/C550i/C450i G00-B6 and earlier bizhub C360i/C300i/C250i G00-B6 and earlier bizhub 750i/650i/550i/450i G00-37 and earlier bizhub 360i/300i G00-33 and earlier bizhub C287i/C257i/C227i G00-19 and earlier bizhub 306i/266i/246i/226i G00-B6 and earlier bizhub C759/C659 GC7-X8 and earlier bizhub C658/C558/C458 GC7-X8 and earlier bizhub 958/808/758 GC7-X8 and earlier bizhub 658e/558e/458e GC7-X8 and earlier bizhub C287/C227 GC7-X8 and earlier bizhub 287/227 GC7-X8 and earlier bizhub 368e/308e GC7-X8 and earlier bizhub C368/C308/C258 GC9-X4 and earlier bizhub 558/458/368/308 GC9-X4 and earlier bizhub C754e/C654e GDQ-M0 and earlier bizhub 754e/654e GDQ-M0 and earlier bizhub C554e/C454e GDQ-M1 and earlier bizhub C364e/C284e/C224e GDQ-M1 and earlier bizhub 554e/454e/364e/284e/224e GDQ-M1 and earlier bizhub C754/C654 C554/C454 GR1-M0 and earlier bizhub C364/C284/C224 GR1-M0 and earlier bizhub 754/654 GR1-M0 and earlier bizhub C3851FS/C3851/C3351 GC9-X4 and earlier bizhub 4752/4052 GC9-X4 and earlier) allows a physical attacker to bypass the firmware integrity verification and to install malicious firmware.

CVSS Vector

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://www.konicaminolta.com/global/newsroom/topics/2021/1224-01-01.html https://jvn.jp/vu/JVNVU95192472/index.html https://jvn.jp/en/vu/JVNVU95192472/index.html https://www.konicaminolta.jp/business/support/important/211224_01_01.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

6.8