Critical severity · published Mar 14, 2022
CVE-2022-26320
The Rambus SafeZone Basic Crypto Module before 10.4.0, as used in certain Fujifilm (formerly Fuji Xerox) devices before 2022-03-01, Canon imagePROGRAF and imageRUNNER devices…
9.1
CVSS
1%
EPSS
No
On KEV
Description
The Rambus SafeZone Basic Crypto Module before 10.4.0, as used in certain Fujifilm (formerly Fuji Xerox) devices before 2022-03-01, Canon imagePROGRAF and imageRUNNER devices through 2022-03-14, and potentially many other devices, generates RSA keys that can be broken with Fermat's factorization method. This allows efficient calculation of private RSA keys from the public key of a TLS certificate.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 62% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AC
Apeos C3070 Firmware · Fujifilm
before 1.1.7 · source: NVD
AC
Apeos C3070 G Firmware · Fujifilm
before 1.1.7 · source: NVD
AC
Apeos C325 DW Firmware · Fujifilm
before 202112062053 · source: NVD
AC
Apeos C325 Z Firmware · Fujifilm
before 202112062053 · source: NVD
AC
Apeos C328 DF Firmware · Fujifilm
before 202112062053 · source: NVD
AC
Apeos C328 DW Firmware · Fujifilm
before 202112062053 · source: NVD
AC
Apeos C3570 Firmware · Fujifilm
before 1.1.7 · source: NVD
AC
Apeos C3570 G Firmware · Fujifilm
before 1.1.7 · source: NVD
AC
Apeos C4570 Firmware · Fujifilm
before 1.1.7 · source: NVD
AC
Apeos C4570 G Firmware · Fujifilm
before 1.1.7 · source: NVD
AC
Apeos C5570 Firmware · Fujifilm
before 1.1.7 · source: NVD
AC
Apeos C5570 G Firmware · Fujifilm
before 1.1.7 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-26320
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-26320
Third Party Advisory
https://fermatattack.secvuln.info
Third Party Advisory
https://global.canon/en/support/security/index.html
web.archive.org
https://web.archive.org/web/20220922042721/https://safezoneswupdate.com/
Mitigation
https://www.fujifilm.com/fbglobal/eng/company/news/notice/2022/0302_rsakey_announce.html
www.rambus.com
https://www.rambus.com/security/response-center/advisories/rmbs-2021-01/
safezoneswupdate.com
https://safezoneswupdate.com
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