Rockwell Automation Modbus TCP Server AOI prior 2.04.00 Message information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.9$0-$5k0.00

A vulnerability classified as problematic was found in Rockwell Automation Modbus TCP Server AOI (Automation Software). Affected by this vulnerability is an unknown part of the component Message Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. The summary by CVE is:

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.

The weakness was published 03/18/2023. The advisory is shared at rockwellautomation.custhelp.com. This vulnerability is known as CVE-2023-0027 since 12/29/2022. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

Upgrading to version 2.04.00 eliminates this vulnerability.

Productinfo

Type

Vendor

Name

License

  • commercial

CPE 2.3info

CPE 2.2info

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.9

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔒

CNA Base Score: 5.3
CNA Vector (Rockwell Automation): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
ATT&CK: T1592

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Modbus TCP Server AOI 2.04.00

Timelineinfo

12/29/2022 CVE reserved
03/18/2023 +79 days Advisory disclosed
03/18/2023 +0 days VulDB entry created
04/11/2023 +24 days VulDB last update

Sourcesinfo

Advisory: rockwellautomation.custhelp.com
Status: Confirmed

CVE: CVE-2023-0027 (🔒)

Entryinfo

Created: 03/18/2023 08:31 AM
Updated: 04/11/2023 02:49 PM
Changes: 03/18/2023 08:31 AM (51), 04/11/2023 02:49 PM (11)
Complete: 🔍

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