Tenable Research Advisory: Rockwell Automation RSLinx Classic Lite RCE and DoS Vulnerability Discovered by Tenable
Tenable Research has discovered multiple memory corruption issues in Rockwell Automation RSLinx Classic Lite 4.00.01 that may allow for remote code execution or denial of service. Customers are encouraged to update their software.
|
What do you need to know? Rockwell Automation RSLinx Classic could allow for memory corruption and remote code execution or denial of service. What’s the attack vector? Common industrial protocol messages over port 44818 to the RSLINX.exe service. What’s the business impact? Memory corruption and remote code execution could lead to malicious takeover of an asset. What’s the solution? Apply the latest update from Rockwell Automation for RSLinx Classic. |
背景說明
While researching methods for remotely identifying Rockwell Automation RSLinx Classic, Tenable Research found multiple memory corruption issues in RSLinx Classic Lite 4.00.01 (CVE-2018-14829 and CVE-2018-14821), which may allow an unauthenticated remote attacker to achieve remote code execution (RCE) or denial of service (DoS).
分析
RSLinx Classic Lite (RSLINX.exe) implements EtherNet/IP, which encapsulates common industrial protocol (CIP) messages. Due to RSLINX.exe not checking various CIP length fields against the number of received network data bytes thoroughly, an unauthenticated remote attacker can exploit this via port 44818 to cause memory corruption issues.
Within the buffer overflow caused through this exploit, an attacker can then trigger arbitrary code execution.
Vendor response
Rockwell Automation has released software patches for RSLinx Classic versions V3.60, V3.74, V3.80, V3.81, V3.90 and V4.00.01.
解決方法
According to Rockwell Automation’s advisory, customers are strongly encouraged to update their software. They have also recommended customers disable port 44818 in RSLinx Classic if it is not utilized during system operation. Customers should also follow other security best practices like limiting administrator privileges and blocking all traffic to EtherNet/IP or other CIP-based devices from external sources.
找出受影響的系統
Tenable has released the following plugin to detect these vulnerabilities.
|
Plugin ID |
Description |
|
Rockwell Automation RSLinx Classic <= 4.00.01 Multiple Vulnerabilities |
取得更多資訊
Learn more about Tenable.io, the first Cyber Exposure platform for holistic management of your modern attack surface. Get a free 60-day trial of Tenable.io Vulnerability Management.
相關文章
Securing Financial Data in the Cloud: How Tenable Can Help
November 4, 2024Preventing data loss, complying with regulations, automating workflows and managing access are four key challenges facing financial institutions. Learn how Tenable can help.
Cybersecurity Snapshot: Apply Zero Trust to Critical Infrastructure’s OT/ICS, CSA Advises, as Five Eyes Spotlight Tech Startups’ Security
November 1, 2024Should critical infrastructure orgs boost OT/ICS systems’ security with zero trust? Absolutely, the CSA says. Meanwhile, the Five Eyes countries offer cyber advice to tech startups. Plus, a survey finds “shadow AI” weakening data governance. And get the latest on MFA methods, CISO trends and Uncle Sam’s AI strategy.
FY 2024 State and Local Cybersecurity Grant Program Adds CISA KEV as a Performance Measure
October 31, 2024The CISA Known Exploited Vulnerabilities (KEV) catalog and enhanced logging guidelines are among the new measurement tools added for the 2024 State and Local Cybersecurity Grant Program.