Rockwellautomation RSLogix 19 Utility RsvcHost.exe memory corruption

HistoryDiffrelatejsonxmlCTI

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.8	$0-$5k	0.00

A vulnerability was found in Rockwellautomation RSLogix 19 (Automation Software) and classified as problematic. Affected by this issue is an unknown functionality in the library RnaUtility.dll of the file RsvcHost.exe of the component Utility. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is availability. CVE summarizes:

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.

The weakness was shared 09/16/2011 by Luigi Auriemma (Website). The advisory is available at securityfocus.com. This vulnerability is handled as CVE-2011-3489 since 09/16/2011. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. The commercial vulnerability scanner Qualys is able to test this issue with plugin 119604 (Rockwell RSLogix Remote Heap Overflow Vulnerability).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (69808), Exploit-DB (17843), SecurityFocus (BID 49608†) and Vulnerability Center (SBV-33296†). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Automation Software

Vendor

Rockwellautomation

Name

RSLogix

Version

CPE 2.3info

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CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
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Timelineinfo

09/13/2011 🔍
09/16/2011 +3 days 🔍
09/16/2011 +0 days 🔍
09/16/2011 +0 days 🔍
09/16/2011 +0 days 🔍
09/25/2011 +9 days 🔍
03/23/2015 +1275 days 🔍
04/03/2025 +3664 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Luigi Auriemma
Status: Not defined

CVE: CVE-2011-3489 (🔍)
GCVE (CVE): GCVE-0-2011-3489
GCVE (VulDB): GCVE-100-58514
X-Force: 69808
SecurityFocus: 49608 - RSLogix Remote Denial of Service Vulnerability
Vulnerability Center: 33296 - Rockwell RSLogix 19 and earlier Remote DoS via Crafted Packets Sent to TCP Port 4446, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/23/2015 04:50 PM
Updated: 04/03/2025 08:34 AM
Changes: 03/23/2015 04:50 PM (51), 04/02/2017 12:04 PM (11), 01/06/2025 01:26 AM (18), 04/03/2025 08:34 AM (13)
Complete: 🔍
Cache ID: 18:3A4:40