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CVE-2011-3489

5.0 · MEDIUM

RnaUtility.dll in RsvcHost.exe 2.30.0.23 in Rockwell RSLogix 19 and earlier allows remote attackers to cause a denial of service (crash) via a crafted rna packet with a long string to TCP port 4446…

Published Sep 16, 2011rockwellautomationCWE-119EPSS 8.75%

Overview

CVE-2011-3489 is a medium-severity vulnerability affecting rockwellautomation rslogix. It was published on September 16, 2011 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

RnaUtility.dll in RsvcHost.exe 2.30.0.23 in Rockwell RSLogix 19 and earlier allows remote attackers to cause a denial of service (crash) via a crafted rna packet with a long string to TCP port 4446 that triggers (1) "a memset zero overflow" or (2) an out-of-bounds read, related to improper handling of a 32-bit size field.

Remediation

Check the references section for vendor advisories and patches from rockwellautomation. Update rslogix to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
rockwellautomationrslogix0Affected

References

Refaluigi.altervista.org/adv/rslogix_1-adv.txtRefsecurityreason.com/securityalert/8383Refwww.securityfocus.com/bid/49608Refexchange.xforce.ibmcloud.com/vulnerabilities/69808Refaluigi.altervista.org/adv/rslogix_1-adv.txtRefsecurityreason.com/securityalert/8383Refwww.securityfocus.com/bid/49608Refexchange.xforce.ibmcloud.com/vulnerabilities/69808

How CyberStrike helps

Frequently asked questions

What is CVE-2011-3489?

CVE-2011-3489 is a medium-severity vulnerability affecting rockwellautomation rslogix. It was published on September 16, 2011 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2011-3489?

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2011-3489?

Check the references section for vendor advisories and patches from rockwellautomation. Update rslogix to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2011-3489?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2011-3489 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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