Medium severity · published Jan 4, 2022
CVE-2021-20871
Exposure of sensitive information to an unauthorized actor vulnerability in KONICA MINOLTA bizhub series (bizhub C750i G00-35 and earlier, bizhub C650i/C550i/C450i G00-B6 and…
6.5
CVSS
0.5%
EPSS
No
On KEV
Description
Exposure of sensitive information to an unauthorized actor 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, and bizhub 4752/4052 GC9-X4 and earlier) allows an attacker on the adjacent network to obtain the credentials if the destination information including credentials are registered in the address book via a specific SOAP message.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 44% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
B2
Bizhub 224e Firmware · Konicaminolta
before gdr-m1 · source: NVD
B2
Bizhub 226i Firmware · Konicaminolta
before g00-e9 · source: NVD
B2
Bizhub 227 Firmware · Konicaminolta
before gca-y0 · source: NVD
B2
Bizhub 266i Firmware · Konicaminolta
before g00-e9 · source: NVD
B2
Bizhub 284e Firmware · Konicaminolta
before gdr-m1 · source: NVD
B2
Bizhub 287 Firmware · Konicaminolta
before gca-y0 · source: NVD
B3
Bizhub 300i Firmware · Konicaminolta
before g00-e9 · source: NVD
B3
Bizhub 306i Firmware · Konicaminolta
before g00-e9 · source: NVD
B3
Bizhub 308 Firmware · Konicaminolta
before gca-x4 · source: NVD
B3
Bizhub 308e Firmware · Konicaminolta
before gca-x8 · source: NVD
B3
Bizhub 360i Firmware · Konicaminolta
before g00-e9 · source: NVD
B3
Bizhub 364e Firmware · Konicaminolta
before gdr-m1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-20871
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-20871
Third Party Advisory
https://jvn.jp/en/vu/JVNVU95192472/index.html
Third Party Advisory
https://jvn.jp/vu/JVNVU95192472/index.html
Mitigation
https://www.konicaminolta.com/global/newsroom/topics/2021/1224-01-01.html
Mitigation
https://www.konicaminolta.jp/business/support/important/211224_01_01.html
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