Medium severity · published Mar 23, 2022
CVE-2021-27424
GE UR family exposure of sensitive information to an unauthorized actor
5.3
CVSS
0.9%
EPSS
No
On KEV
Description
GE UR firmware versions prior to version 8.1x shares MODBUS memory map as part of the communications guide. GE was made aware a “Last-key pressed” MODBUS register can be used to gain unauthorized information.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 59% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
UF
UR family · GE
before 8.1x · source: vendor
MB
Multilin B30 Firmware · GE
before 8.10 · source: NVD
MB
Multilin B90 Firmware · GE
before 8.10 · source: NVD
MC
Multilin C30 Firmware · GE
before 8.10 · source: NVD
MC
Multilin C60 Firmware · GE
before 8.10 · source: NVD
MC
Multilin C70 Firmware · GE
before 8.10 · source: NVD
MC
Multilin C95 Firmware · GE
before 8.10 · source: NVD
MD
Multilin D30 Firmware · GE
before 8.10 · source: NVD
MD
Multilin D60 Firmware · GE
before 8.10 · source: NVD
MF
Multilin F35 Firmware · GE
before 8.10 · source: NVD
MF
Multilin F60 Firmware · GE
before 8.10 · source: NVD
MG
Multilin G30 Firmware · GE
before 8.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-27424
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-27424
Mitigation
https://www.cisa.gov/uscert/ics/advisories/icsa-21-075-02
Permissions Required
https://www.gegridsolutions.com/Passport/Login.aspx
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