CVE-2023-0027 Rockwell Automation Modbus TCP AOI Server Could Leak Sensitive Information
An unauthorized user can send a malformed message to leak sensitive Modbus TCP Server AOI information from the connected device.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-0027?
CVE-2023-0027 is a medium-severity vulnerability in Rockwell Automation Modbus TCP Server Add On Instructions, published on 17 Mar 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Rockwell Automation Modbus TCP Server AOI prior to 2.04.00 is vulnerable to an unauthorized user sending a malformed message that could cause the controller to respond with a copy of the most recent response to the last valid request. If exploited, an unauthorized user could read the connected device’s Modbus TCP Server AOI information.
Weakness: CWE-200
Which versions are affected by CVE-2023-0027?
It affects 1 product.
Products include Rockwellautomation Modbus Tcp Server Add on Instructions.
How do I fix CVE-2023-0027?
No fix has been published for CVE-2023-0027 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-0027 being exploited?
There is no known exploitation of CVE-2023-0027 in the wild and no public exploit code.
Sources
Also known as GHSA-fj78-7vc8-pxrm.