Vulnerability Details : 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 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.
Vulnerability category: Denial of service
Products affected by CVE-2023-3373
- cpe:2.3:o:mitsubishielectric:gt21_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:mitsubishielectric:gs21_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-3373
0.18%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 56 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-3373
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.9
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:L |
1.6
|
4.2
|
Mitsubishi Electric Corporation | |
9.1
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H |
3.9
|
5.2
|
NIST |
CWE ids for CVE-2023-3373
-
The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.Assigned by: nvd@nist.gov (Primary)
-
An exact value or random number can be precisely predicted by observing previous values.Assigned by: Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp (Secondary)
References for CVE-2023-3373
-
https://www.cisa.gov/news-events/ics-advisories/icsa-23-215-01
Mitsubishi Electric GOT2000 and GOT SIMPLE | CISAThird Party Advisory;US Government Resource
-
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-006_en.pdf
Vendor Advisory
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https://jvn.jp/vu/JVNVU92167394/index.html
JVNVU#92167394: 三菱電機製GOT2000シリーズおよびGOT SIMPLEシリーズのFTPサーバ機能にデータコネクションを待ち受けるポート番号を容易に推測可能な脆弱性Third Party Advisory
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