CVE-2023-27389: Weak Encryption
First published: Tue Apr 11 2023(Updated: )
Inadequate encryption strength vulnerability in CONPROSYS IoT Gateway products allows a remote authenticated attacker with an administrative privilege to apply a specially crafted Firmware update file, alter the information, cause a denial-of-service (DoS) condition, and/or execute arbitrary code. The affected products and versions are as follows: M2M Gateway with the firmware Ver.3.7.10 and earlier (CPS-MG341-ADSC1-111, CPS-MG341-ADSC1-931, CPS-MG341G-ADSC1-111, CPS-MG341G-ADSC1-930, and CPS-MG341G5-ADSC1-931), M2M Controller Integrated Type with firmware Ver.3.7.6 and earlier versions (CPS-MC341-ADSC1-111, CPS-MC341-ADSC1-931, CPS-MC341-ADSC2-111, CPS-MC341G-ADSC1-110, CPS-MC341Q-ADSC1-111, CPS-MC341-DS1-111, CPS-MC341-DS11-111, CPS-MC341-DS2-911, and CPS-MC341-A1-111), and M2M Controller Configurable Type with firmware Ver.3.8.8 and earlier versions (CPS-MCS341-DS1-111, CPS-MCS341-DS1-131, CPS-MCS341G-DS1-130, CPS-MCS341G5-DS1-130, and CPS-MCS341Q-DS1-131).
Credit: vultures@jpcert.or.jp
| Affected Software | Affected Version | How to fix |
|---|---|---|
| <=3.7.10 | ||
| <=3.7.10 | ||
| <=3.7.10 | ||
| <=3.7.10 | ||
| <=3.7.10 | ||
| <=3.7.6 | ||
| <=3.7.6 | ||
| <=3.7.6 | ||
| <=3.7.6 | ||
| <=3.7.6 | ||
| <=3.7.6 | ||
| <=3.7.6 | ||
| <=3.7.6 | ||
| <=3.7.6 | ||
| <=3.8.8 | ||
| <=3.8.8 | ||
| <=3.8.8 | ||
| <=3.8.8 | ||
| <=3.8.8 | ||
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Reference Links
- https://jvn.jp/en/vu/JVNVU96198617/
- https://www.contec.com/api/downloadlogger?download=/-/media/Contec/jp/support/security-info/contec_security_cps_230317_en.pdf
- https://www.contec.com/download/donwload-list/?itemid=a054b3eb-da97-40d0-9598-d7f5ff4239ec#firmware
- https://www.contec.com/download/donwload-list/?itemid=a1b33f0d-d32b-4549-9741-613cd37d5528#firmware
- https://www.contec.com/download/donwload-list/?itemid=f832c526-dcf6-4976-85aa-f536c15a8120#firmware
Frequently Asked Questions
What is CVE-2023-27389?
CVE-2023-27389 is an inadequate encryption strength vulnerability in CONPROSYS IoT Gateway products that allows a remote authenticated attacker with administrative privilege to apply a specially crafted Firmware update file, alter information, cause a denial-of-service (DoS) condition, and/or execute arbitrary code.
Are CONPROSYS IoT Gateway products affected by CVE-2023-27389?
Yes, CONPROSYS IoT Gateway products with firmware versions up to and including 3.7.10 are affected by CVE-2023-27389.
What is the severity of CVE-2023-27389?
The severity of CVE-2023-27389 is high with a CVSS score of 7.2.
How can an attacker exploit CVE-2023-27389?
An attacker can exploit CVE-2023-27389 by being authenticated remotely with administrative privilege and applying a specially crafted Firmware update file.
Is there a fix available for CVE-2023-27389?
Yes, Contec provides a firmware update to address CVE-2023-27389. Please refer to the Contec website for more information.
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