Critical severity · published Aug 3, 2023
CVE-2023-3373
Predictable Exact Value from Previous Values vulnerability in Mitsubishi Electric Corporation GOT2000 Series GT21 model versions 01.49.000 and prior and GOT SIMPLE Series GS21…
9.1
CVSS
1%
EPSS
No
On KEV
Description
Predictable Exact Value from Previous Values vulnerability in Mitsubishi Electric Corporation GOT2000 Series GT21 model versions 01.49.000 and prior and GOT SIMPLE Series GS21 model versions 01.49.000 and prior allows a remote unauthenticated attacker to hijack data connections (session hijacking) or prevent legitimate users from establishing data connections (to cause DoS condition) by guessing the listening port of the data connection on FTP server and connecting to it.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 63% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GS
GOT SIMPLE Series GS21 model · Mitsubishi Electric Corporation
01.49.000 and prior · source: vendor
GS
GOT2000 Series GT21 model · Mitsubishi Electric Corporation
01.49.000 and prior · source: vendor
GF
Gs21 Firmware · Mitsubishielectric
before 01.50.000 · source: NVD
GF
Gt21 Firmware · Mitsubishielectric
before 01.50.000 · source: NVD
Affected product
GS
GOT SIMPLE Series GS21 model
Mitsubishi Electric Corporation
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-3373
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-3373
Third Party Advisory
https://jvn.jp/vu/JVNVU92167394/index.html
Third Party Advisory
https://www.cisa.gov/news-events/ics-advisories/icsa-23-215-01
Vendor Advisory
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-006_en.pdf
More from GOT SIMPLE Series GS21 model
7.5
CVE-2023-0525
Weak Encoding for Password vulnerability in Mitsubishi Electric Corporation GOT2000 Series GT27 model versions 01.49.000 and prior, GT25 model versions 01.49.000 and prior, GT23…