CVE-2021-20870 Information disclosure in bizhub series
A physical attacker can retrieve unsent scanned image data by ejecting the hard drive during a network error, exposing sensitive information.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-20870?
CVE-2021-20870 is a medium-severity vulnerability in KONICA MINOLTA, INC. bizhub series, published on 4 Jan 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Improper handling of exceptional conditions 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 C4050i/C3350i/C4000i/C3300i G00-B6 and earlier, bizhub C3320i G00-B6 and earlier, bizhub 4750i/4050i G00-22 and earlier, bizhub 4700i G00-22 and earlier, bizhub C3851FS/C3851/C3351 GC9-X4 and earlier, bizhub 4752/4052 GC9-X4 and earlier, bizhub C3850/C3350/3850FS, bizhub 4750/4050, bizhub C3110, bizhub C3100P) allows a physical attacker to obtain unsent scanned image data when scanned data transmission is stopped due to the network error by ejecting a HDD before the scan job times out.
Weakness: CWE-755
Which versions are affected by CVE-2021-20870?
It affects 87 products.
Products include Konicaminolta Bizhub 224e Firmware, Konicaminolta Bizhub 226i Firmware, Konicaminolta Bizhub 227 Firmware, Konicaminolta Bizhub 246i Firmware, Konicaminolta Bizhub 266i Firmware, Konicaminolta Bizhub 284e Firmware and 81 more.
How do I fix CVE-2021-20870?
No fix has been published for CVE-2021-20870 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-20870 being exploited?
There is no known exploitation of CVE-2021-20870 in the wild and no public exploit code.
Other vulnerabilities in KONICA MINOLTA, INC. bizhub series
Sources
Also known as GHSA-6c2h-x2jr-x8w2.