CVE-2024-11155 Overview
CVE-2024-11155 is a use-after-free [CWE-416] code execution vulnerability affecting Rockwell Automation Arena simulation software. An attacker can craft a malicious DOE file that forces the application to reuse a previously freed memory resource. When a legitimate user opens the crafted file, the flaw enables arbitrary code execution in the context of the user process.
Exploitation requires user interaction, and the attack vector is local. The vulnerability affects installations of Arena discrete event simulation software used across manufacturing, logistics, and industrial engineering environments.
Critical Impact
Successful exploitation allows arbitrary code execution on engineering workstations running Rockwell Automation Arena, potentially exposing OT and simulation environments to compromise.
Affected Products
- Rockwell Automation Arena (all versions prior to the vendor-supplied fix in advisory SD1713)
- Engineering workstations executing untrusted .DOE simulation files
- OT environments where Arena is used for discrete event modeling
Discovery Timeline
- 2024-12-05 - CVE-2024-11155 published to the National Vulnerability Database (NVD)
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2024-11155
Vulnerability Analysis
The flaw is classified as a use-after-free condition [CWE-416] in Arena's DOE file parsing logic. Arena frees a resource during file processing but retains a dangling reference that is later dereferenced. An attacker who controls the freed object's memory layout can redirect execution to attacker-supplied code.
The vulnerability requires local access and user interaction. A victim must open a crafted DOE file for the flaw to trigger. Once triggered, arbitrary code runs in the security context of the Arena process, which typically executes with the interactive user's privileges.
Root Cause
The root cause is improper lifetime management of an internal object referenced during DOE file deserialization. Arena releases the underlying allocation while other code paths still hold a pointer to it. Subsequent operations on that pointer read or write freed memory, enabling heap grooming and control-flow hijacking.
Attack Vector
Attackers deliver a weaponized DOE file through phishing, shared network drives, engineering document exchanges, or supply-chain compromise. When an engineer opens the file in Arena, the parser triggers the use-after-free condition. Because DOE files are commonly exchanged among simulation engineers, social engineering is a plausible delivery path.
The vulnerability manifests during DOE file deserialization rather than through network protocols. See the Rockwell Automation Security Advisory SD1713 for vendor technical details.
Detection Methods for CVE-2024-11155
Indicators of Compromise
- Unexpected Arena.exe child processes spawning command interpreters such as cmd.exe, powershell.exe, or rundll32.exe
- DOE files arriving from untrusted external senders or unusual network shares
- Crash artifacts, Windows Error Reporting entries, or heap corruption events tied to the Arena process
- Outbound network connections from Arena.exe to unexpected external hosts
Detection Strategies
- Monitor process ancestry for Arena spawning shells, scripting engines, or LOLBins outside normal engineering workflows
- Alert on Arena process crashes correlated with the opening of externally sourced DOE files
- Inspect email gateways and file shares for DOE attachments and flag them for sandbox analysis
Monitoring Recommendations
- Enable command-line and process-creation logging on engineering workstations that run Arena
- Forward endpoint telemetry to a central data lake or SIEM for correlation with file-open events
- Baseline normal Arena behavior to surface anomalous module loads and memory-integrity violations
How to Mitigate CVE-2024-11155
Immediate Actions Required
- Apply the fixed Arena release identified in Rockwell Automation Security Advisory SD1713
- Restrict opening of DOE files to those received from verified, trusted sources
- Isolate Arena engineering workstations from general-purpose email and web browsing where feasible
- Enforce least-privilege on user accounts that run Arena to limit post-exploitation impact
Patch Information
Rockwell Automation released a fixed version of Arena addressing CVE-2024-11155. Refer to Rockwell Automation Security Advisory SD1713 for the specific fixed version and upgrade guidance. Deploy the update to all Arena installations across engineering and simulation environments.
Workarounds
- Do not open DOE files from untrusted or unverified sources
- Block DOE attachments at the email gateway pending patch deployment
- Run Arena on segmented workstations without direct internet access
- Enable Windows exploit protection features such as DEP, ASLR, and Control Flow Guard for the Arena process
# Windows exploit protection example for Arena.exe
Set-ProcessMitigation -Name Arena.exe -Enable DEP,ForceRelocateImages,BottomUp,CFG,SEHOP
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
