Home / Advisories / KLCERT advisories / KLCERT-20-026: Rockwell Automation ISaGRAF Runtime: Information Disclosure due to cleartext storage of passwords in a file and memory

KLCERT-20-026: Rockwell Automation ISaGRAF Runtime: Information Disclosure due to cleartext storage of passwords in a file and memory

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KLCERT-ID KLCERT-20-026
CVE CVE-2020-25184
CWE CWE-312: Cleartext Storage of Sensitive Information
Publication date 2021-07-13
Researcher Alexander Nochvay
Description

ISaGRAF Runtime stores the password in plaintext in memory and in a file which is located in the same directory with the executable file ISAGRAF.exe.

Impact

A local attacker could compromise the user’s password by dumping memory or reading a specific file.

Severity
CVSS v3 Base Score 5.5 (Medium)
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Exploitability Locally exploitable
Difficulty ⚠ Low skill level to exploit: an attacker must perform Man-in-the-Middle attack
Privilege required Low privilege level required: it is required to have “read” privilege level on the filesystem
User interaction ⚠ No user interaction required
Confidentiality ⚠ Confidentiality of the system may be seriously affected
Affected products
Affected products
  • AADvance Controller:
    • All firmware versions
  • Based on ISaGRAF Runtime 5 controllers:
    • All software versions
  • ISaGRAF Free Runtime:
    • All software versions
Mitigation
Rockwell Automation mitigation

Rockwell Automation recommends upgrading to ISaGRAF Runtime 5 version 5.72.00.

Customers should ensure that the least-privilege user principle is followed, and user/service account access to Runtime’s folder location is granted with a minimum amount of rights as needed.

For ISaGRAF, restrict or block traffic on TCP 1131 from outside of the industrial control system network zone. For more information on the TCP/UDP ports used by ISaGRAF refer to product documentation.

Since ISaGRAF 5 Runtime is provided to a customer as a development kit, implementing least-privilege may vary from implementation to implementation based on the hardware in use.

For AADvance controllers, customers are encouraged to restrict or block traffic on TCP 1132 from outside of the industrial control system network zone.1


  1. For more information on the TCP/UDP ports used by Rockwell Automation products, see BF7490.↩︎

Timeline 2020-02-21 – Vulnerability reported
2020-03-11 – Rockwell Automation confirmed the vulnerability
2021-06-08 – Rockwell Automation published the advisory
2021-06-17 – ICS CERT published the advisory