high
7.5
CWE
125 120
Advisory Published
Updated

CVE-2023-27857: Rockwell Automation ThinManager ThinServer Heap-Based Buffer Overflow

First published: Wed Mar 22 2023(Updated: )

In affected versions, a heap-based buffer over-read condition occurs when the message field indicates more data than is present in the message field in Rockwell Automation's ThinManager ThinServer.  An unauthenticated remote attacker can exploit this vulnerability to crash ThinServer.exe due to a read access violation.

Credit: PSIRT@rockwellautomation.com PSIRT@rockwellautomation.com

Affected SoftwareAffected VersionHow to fix
Rockwell Automation ThinManager>=11.0.0<11.0.5
Rockwell Automation ThinManager>=11.1.0<11.1.5
Rockwell Automation ThinManager>=11.2.0<11.2.6
Rockwell Automation ThinManager>=12.0.0<12.0.3
Rockwell Automation ThinManager>=12.1.0<12.1.4
Rockwell Automation ThinManager=13.0.0

Remedy

Customers are directed to update to versions of the product that correct the vulnerability as listed in the reference article.

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Reference Links

Frequently Asked Questions

  • What is the vulnerability ID of this issue?

    The vulnerability ID of this issue is CVE-2023-27857.

  • What is the severity of CVE-2023-27857?

    CVE-2023-27857 has a severity rating of 7.5 (High).

  • How does CVE-2023-27857 occur?

    CVE-2023-27857 occurs due to a heap-based buffer over-read condition in Rockwell Automation's ThinManager ThinServer.

  • Which versions of ThinManager ThinServer are affected by CVE-2023-27857?

    ThinManager ThinServer versions 11.0.0 to 11.0.5, 11.1.0 to 11.1.5, 11.2.0 to 11.2.6, 12.0.0 to 12.0.3, 12.1.0 to 12.1.4, and 13.0.0 are affected by CVE-2023-27857.

  • How can an attacker exploit CVE-2023-27857?

    An unauthenticated remote attacker can exploit CVE-2023-27857 to crash ThinServer.exe.

  • Is authentication required to exploit CVE-2023-27857?

    No, authentication is not required to exploit CVE-2023-27857.

  • How can CVE-2023-27857 be fixed?

    To fix CVE-2023-27857, It is recommended to update ThinManager ThinServer to a version that is not affected by this vulnerability.

Company

Resources

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